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small engine electronic ignition
I saw a web page somewhere that had a circuit you could build to
replace the points and condenser on a lawnmower engine, but I lost it. Can someone point me to it? Thanks, Ron Thompson On the Beautiful Florida Space Coast, right beside the Kennedy Space Center, USA http://www.plansandprojects.com The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer, English Philosopher (1820-1903) |
small engine electronic ignition
Ron Thompson wrote in article ... I saw a web page somewhere that had a circuit you could build to replace the points and condenser on a lawnmower engine, but I lost it. Can someone point me to it? Thanks, Ron Thompson On the Beautiful Florida Space Coast, right beside the Kennedy Space Center, USA http://www.plansandprojects.com The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer, English Philosopher (1820-1903) When I managed a NAPA store, we sold an inexpensive (under $20) electronic ignition conversion for B&S among others. Bob Paulin - R.A.C.E. Race Car Chassis Analysis & Setup Services |
small engine electronic ignition
http://www.mfgsupply.com/m/c/31-8786.html?id=7qILfYVr
David "Ron Thompson" wrote in message ... I saw a web page somewhere that had a circuit you could build to replace the points and condenser on a lawnmower engine, but I lost it. Can someone point me to it? Thanks, Ron Thompson On the Beautiful Florida Space Coast, right beside the Kennedy Space Center, USA http://www.plansandprojects.com The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer, English Philosopher (1820-1903) |
small engine electronic ignition
http://www.mfgsupply.com/m/c/31-8786.html?id=7qILfYVr
David Thanks, that's the idea. But I was looking for the home built circuit. Ron Thompson On the Beautiful Florida Space Coast, right beside the Kennedy Space Center, USA http://www.plansandprojects.com The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer, English Philosopher (1820-1903) |
small engine electronic ignition
On Tue, 08 Jun 2004 21:16:01 GMT, Ron Thompson
wrote: http://www.mfgsupply.com/m/c/31-8786.html?id=7qILfYVr David Thanks, that's the idea. But I was looking for the home built circuit. Ron Thompson On the Beautiful Florida Space Coast, right beside the Kennedy Space Center, USA http://www.plansandprojects.com The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer, English Philosopher (1820-1903) Try www.modelflight.com/ignition.html All I did was google for "electronic ignition circuit" This one is battery operated. All the home made ones I seen use a battery. ERS |
small engine electronic ignition
On Tue, 08 Jun 2004 21:16:01 GMT, Ron Thompson
wrote: http://www.mfgsupply.com/m/c/31-8786.html?id=7qILfYVr David Thanks, that's the idea. But I was looking for the home built circuit. Ron Thompson On the Beautiful Florida Space Coast, right beside the Kennedy Space Center, USA http://www.plansandprojects.com The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer, English Philosopher (1820-1903) Try www.modelflight.com/ignition.html All I did was google for "electronic ignition circuit" This one is battery operated. All the home made ones I seen use a battery. ERS Yeah, me too. Not much good on a lawnmower. I thought I had the other one saved on my computer, but I can't find it. Ron Thompson On the Beautiful Florida Space Coast, right beside the Kennedy Space Center, USA http://www.plansandprojects.com The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer, English Philosopher (1820-1903) |
small engine electronic ignition
I don't think that those "electronic ignitions" for lawnmower engines are
anything more than a hefty zener diode. I'm sure that there must be a small-engine group (or 10) somewhere on the Internet where you could get a more definitive answer. In my fuzzy experience, you just bolt "the part" to a grounded part of the engine and hook it's one wire to the points connection. It works fine, and resultantly I doubt if they have been putting mechanical points in lawnmowers for the last 15 or 20 years. I run a communications shop and we have drawers full of parts, some of which would likely do the job just fine. That said; if I needed that part, I would go to somewhere where they sell lawnmower parts and buy one. My time has a certain small amount of value to me. Vaughn "Ron Thompson" wrote in message ... I saw a web page somewhere that had a circuit you could build to replace the points and condenser on a lawnmower engine, but I lost it. Can someone point me to it? Thanks, Ron Thompson On the Beautiful Florida Space Coast, right beside the Kennedy Space Center, USA http://www.plansandprojects.com The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer, English Philosopher (1820-1903) |
small engine electronic ignition
On Tue, 08 Jun 2004 22:30:32 GMT, Ron Thompson
wrote: On Tue, 08 Jun 2004 21:16:01 GMT, Ron Thompson wrote: http://www.mfgsupply.com/m/c/31-8786.html?id=7qILfYVr David Thanks, that's the idea. But I was looking for the home built circuit. Ron Thompson On the Beautiful Florida Space Coast, right beside the Kennedy Space Center, USA http://www.plansandprojects.com The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer, English Philosopher (1820-1903) Try www.modelflight.com/ignition.html All I did was google for "electronic ignition circuit" This one is battery operated. All the home made ones I seen use a battery. ERS Yeah, me too. Not much good on a lawnmower. I thought I had the other one saved on my computer, but I can't find it. Ron Thompson On the Beautiful Florida Space Coast, right beside the Kennedy Space Center, USA http://www.plansandprojects.com The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer, English Philosopher (1820-1903) Ron- I have used the ones you can buy for about 10 bucks. Some in plastic cases and others in metal cases. They all worked perfectly. Interestingly, B&S used some kind of coil in their electronic ignition to sense the magnet on the flywheel. And these ignitions were not that reliable. The ones you buy must sense the voltage build up and fire then. In a magneto ignition system the magnet needs to be passing the coil when the points open to get a good spark. I don't know how the retrofit systems know exactly when to fire. Different magnetos will have different voltages. The first ones I saw had to be bought for the right engine but the last one I bought said it would work on any engine. And it worked on a B&S, Tecumseh, and a japanese made weedwhacker motor. ERS |
small engine electronic ignition
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small engine electronic ignition
so, Japanese weeds are different from American weeds?
"Eric R Snow" wrote in message ... On Tue, 08 Jun 2004 22:30:32 GMT, Ron Thompson wrote: On Tue, 08 Jun 2004 21:16:01 GMT, Ron Thompson wrote: http://www.mfgsupply.com/m/c/31-8786.html?id=7qILfYVr David Thanks, that's the idea. But I was looking for the home built circuit. Ron Thompson On the Beautiful Florida Space Coast, right beside the Kennedy Space Center, USA http://www.plansandprojects.com The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer, English Philosopher (1820-1903) Try www.modelflight.com/ignition.html All I did was google for "electronic ignition circuit" This one is battery operated. All the home made ones I seen use a battery. ERS Yeah, me too. Not much good on a lawnmower. I thought I had the other one saved on my computer, but I can't find it. Ron Thompson On the Beautiful Florida Space Coast, right beside the Kennedy Space Center, USA http://www.plansandprojects.com The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer, English Philosopher (1820-1903) Ron- I have used the ones you can buy for about 10 bucks. Some in plastic cases and others in metal cases. They all worked perfectly. Interestingly, B&S used some kind of coil in their electronic ignition to sense the magnet on the flywheel. And these ignitions were not that reliable. The ones you buy must sense the voltage build up and fire then. In a magneto ignition system the magnet needs to be passing the coil when the points open to get a good spark. I don't know how the retrofit systems know exactly when to fire. Different magnetos will have different voltages. The first ones I saw had to be bought for the right engine but the last one I bought said it would work on any engine. And it worked on a B&S, Tecumseh, and a japanese made weedwhacker motor. ERS |
small engine electronic ignition
How about this one: http://www.5bears.com/tim4.htm
Robert "Ron Thompson" wrote in message ... I saw a web page somewhere that had a circuit you could build to replace the points and condenser on a lawnmower engine, but I lost it. Can someone point me to it? Thanks, Ron Thompson On the Beautiful Florida Space Coast, right beside the Kennedy Space Center, USA http://www.plansandprojects.com The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer, English Philosopher (1820-1903) |
small engine electronic ignition
On Wed, 09 Jun 2004 01:40:14 GMT, "Jon Grimm"
wrote: No, well, maybe, but that's not the point. The japanese ignitions were different from the american ones. In fact, the american ones were actually made in the USA. ERS so, Japanese weeds are different from American weeds? "Eric R Snow" wrote in message .. . On Tue, 08 Jun 2004 22:30:32 GMT, Ron Thompson wrote: On Tue, 08 Jun 2004 21:16:01 GMT, Ron Thompson wrote: http://www.mfgsupply.com/m/c/31-8786.html?id=7qILfYVr David Thanks, that's the idea. But I was looking for the home built circuit. Ron Thompson On the Beautiful Florida Space Coast, right beside the Kennedy Space Center, USA http://www.plansandprojects.com The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer, English Philosopher (1820-1903) Try www.modelflight.com/ignition.html All I did was google for "electronic ignition circuit" This one is battery operated. All the home made ones I seen use a battery. ERS Yeah, me too. Not much good on a lawnmower. I thought I had the other one saved on my computer, but I can't find it. Ron Thompson On the Beautiful Florida Space Coast, right beside the Kennedy Space Center, USA http://www.plansandprojects.com The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer, English Philosopher (1820-1903) Ron- I have used the ones you can buy for about 10 bucks. Some in plastic cases and others in metal cases. They all worked perfectly. Interestingly, B&S used some kind of coil in their electronic ignition to sense the magnet on the flywheel. And these ignitions were not that reliable. The ones you buy must sense the voltage build up and fire then. In a magneto ignition system the magnet needs to be passing the coil when the points open to get a good spark. I don't know how the retrofit systems know exactly when to fire. Different magnetos will have different voltages. The first ones I saw had to be bought for the right engine but the last one I bought said it would work on any engine. And it worked on a B&S, Tecumseh, and a japanese made weedwhacker motor. ERS |
small engine electronic ignition
How about this one: http://www.5bears.com/tim4.htm
Robert Thanks, but it requires a battery. To the "just buy it" crowd, I haven't found one locally and I haven't worked for over two years. Money is scarce. Ron Thompson On the Beautiful Florida Space Coast, right beside the Kennedy Space Center, USA http://www.plansandprojects.com The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer, English Philosopher (1820-1903) |
small engine electronic ignition
Vaughn wrote:
I don't think that those "electronic ignitions" for lawnmower engines are anything more than a hefty zener diode. Now, why would a Zenner diode create the KV necessary for a spark? I run a communications shop and we have drawers full of parts, some of which would likely do the job just fine. Do you use Zenner diodes for RF generation too? Ted |
small engine electronic ignition
"Ted Edwards" wrote in message ... Vaughn wrote: I don't think that those "electronic ignitions" for lawnmower engines are anything more than a hefty zener diode. Now, why would a Zenner diode create the KV necessary for a spark? It can act just like a set of points. It allows the voltage to rise to a certain point, where it suddenly conducts, which collapses the magnetic field. The collapsing field cuts the turns in the coil creating a spark. (I think) I run a communications shop and we have drawers full of parts, some of which would likely do the job just fine. Do you use Zenner diodes for RF generation too? Used mostly in DC power supply circuits and in circuit protection, come in many voltages and physical sizes depending on power. Vaughn Ted |
small engine electronic ignition
"Ron Thompson" wrote in message ... How about this one: http://www.5bears.com/tim4.htm To the "just buy it" crowd, I haven't found one locally and I haven't worked for over two years. Sorry to hear about that... Money is scarce. I understand. Then watch your local trash piles and scrounge (recycle) what you need. Get someone who really knows to confirm, but I think most of the lawnmowers that you find in the trash these days will have electronic ignition. Electronic ignition *must* be cheaper than mechanical points. Early in the summer is probably the best time of the year to find junked-out lawnmowers as people are facing new heavy growth and junky lawnmowers that barely made it through last year's season. Vaughn Vaughn Ron Thompson On the Beautiful Florida Space Coast, right beside the Kennedy Space Center, USA http://www.plansandprojects.com The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer, English Philosopher (1820-1903) |
small engine electronic ignition
In article ,
Vaughn Simon wrote: "Ted Edwards" wrote in message ... Vaughn wrote: I don't think that those "electronic ignitions" for lawnmower engines are anything more than a hefty zener diode. Now, why would a Zenner diode create the KV necessary for a spark? It can act just like a set of points. It allows the voltage to rise to a certain point, where it suddenly conducts, which collapses the magnetic field. The collapsing field cuts the turns in the coil creating a spark. (I think) I seem to remember something else for that purpose. Like a zener, it does not turn on until it reaches a threshold voltage, but unlike a zener, it does not remain at that voltage drop -- instead it switches to an extremely low voltage drop. (Consider it to be like a Zener diode connected between the gate an anode of an SCR, so when things reach the right voltage, the SCR is turned on, and all the current is dumped into the coil. Enjoy, DoN. -- Email: | Voice (all times): (703) 938-4564 (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html --- Black Holes are where God is dividing by zero --- |
small engine electronic ignition
How about this one: http://www.5bears.com/tim4.htm
Robert Thanks, but it requires a battery. To the "just buy it" crowd, I haven't found one locally and I haven't worked for over two years. Money is scarce. Ron Thompson On the Beautiful Florida Space Coast, right beside the Kennedy Space Center, USA http://www.plansandprojects.com The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer, English Philosopher (1820-1903) Ron, Is this some kind of a special project you are working on, or do you just want to get your lawnmower running? If it's a case of just getting a mower running - provide some specifics like engine name, numbers, etc., and either I or someone else can probably help you out. Ken. |
small engine electronic ignition
On Wed, 09 Jun 2004 18:35:33 GMT, "Vaughn Simon"
wrote: "Ted Edwards" wrote in message ... Vaughn wrote: I don't think that those "electronic ignitions" for lawnmower engines are anything more than a hefty zener diode. Now, why would a Zenner diode create the KV necessary for a spark? It can act just like a set of points. It allows the voltage to rise to a certain point, where it suddenly conducts, which collapses the magnetic field. The collapsing field cuts the turns in the coil creating a spark. (I think) Got it backwards, kinda. The votage increases, but there is no current until the zener fires. The zener firing would BUILD the magnetic field, not collapse it. Might still work if the field could build as fast as opening points allows it to collapse. But some how you need to collapse that feild too - which MAY happen effectively when the zener stops conducting. Only problem is, the coil "rings" and the zener would likely false trigger, killing the spark prematurely. I suspect there is something a bit fancier than a Zener in the little box. I run a communications shop and we have drawers full of parts, some of which would likely do the job just fine. Do you use Zenner diodes for RF generation too? Used mostly in DC power supply circuits and in circuit protection, come in many voltages and physical sizes depending on power. Vaughn Ted |
small engine electronic ignition
On Wed, 09 Jun 2004 14:17:40 GMT, Ron Thompson
wrote: How about this one: http://www.5bears.com/tim4.htm Robert Thanks, but it requires a battery. To the "just buy it" crowd, I haven't found one locally and I haven't worked for over two years. Money is scarce. Last one I bought a couple of years ago cost me $9.95 at Princess Auto. For that price I can't source the parts, pick them up, and plug in the soldering iron, much less fiddle around trying to make it work, and I'm a cheap beggar. Ron Thompson On the Beautiful Florida Space Coast, right beside the Kennedy Space Center, USA http://www.plansandprojects.com The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer, English Philosopher (1820-1903) |
small engine electronic ignition
Ron,
Is this some kind of a special project you are working on, or do you just want to get your lawnmower running? If it's a case of just getting a mower running - provide some specifics like engine name, numbers, etc., and either I or someone else can probably help you out. Ken. I was working on my father-in-law's lawnmower. I replaced the points and didn't want to do it every year. I recalled this simple little circuit and got obsessed with finding it again. Still no luck. The zener and SCR sounds like it may be the ticket. Thanks everyone for your responses. Ron Thompson On the Beautiful Florida Space Coast, right beside the Kennedy Space Center, USA http://www.plansandprojects.com The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer, English Philosopher (1820-1903) |
small engine electronic ignition
Ron,
Is this some kind of a special project you are working on, or do you just want to get your lawnmower running? If it's a case of just getting a mower running - provide some specifics like engine name, numbers, etc., and either I or someone else can probably help you out. Ken. I was working on my father-in-law's lawnmower. I replaced the points and didn't want to do it every year. I recalled this simple little circuit and got obsessed with finding it again. Still no luck. The zener and SCR sounds like it may be the ticket. Thanks everyone for your responses. Ron Thompson On the Beautiful Florida Space Coast, right beside the Kennedy Space Center, USA http://www.plansandprojects.com The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer, English Philosopher (1820-1903) Okay, I understand. Typically, though, a set of points (properly set) and a *good* condenser should last *years and years* without any problems. If the points are burning prematurely, changing the condenser should cure the problem. Oil getting on the points is also a "no-no" and can cause problems. Considering the "old" points and condenser used in cars would go 12K miles, the intermittent use of a lawnmower would seem to indicate almost "lifetime" duration - although I realize that's not the case. I am familiar with the little unit that replaces the points and condenser that is available retail - somewhere around $16 and the only requirement for it is that the coil is good - (no battery needed). I understand, from the paperwork included with the unit, that it "fires" the plug dozens of times - providing reliable ignition - just how it does this, I don't know. I will "look around" a little for you to see if I find a schematic for the setup you are looking for. Maybe I'll stumble onto something. Ken. |
small engine electronic ignition
There are two approaches to electronic ignition. One is to connect the
coil across a power source, let the current build up then interupt it. V = L di/dt so voltage rises and in both primary and secondary until plug fires. That's how pointed ignition systems worked. Early "transistorized" ignitions simply replaced the points with a transistor triggered by points or optical or magnetic sensor. The second is capacitor discharge. Here a cap is charged up from an appropriate power supply and discharged through the coil primary. These are generally better. The power source can be a vehicle electrical system or a coil and magnet. Pretty quick and dirty explanation but there is just no way you're going to do it with just a Zenner diode. (I've designed and built a few of both kinds.) Ted |
small engine electronic ignition
Ron Thompson wrote:
I was working on my father-in-law's lawnmower. I replaced the points and didn't want to do it every year. Replace the condenser. A bad condenser will either stop the engine dead or just get it to eat points. The zener and SCR sounds like it may be the ticket. See my post elsewhere in this thread. That doesn't work. Ted |
small engine electronic ignition
On Thu, 10 Jun 2004 18:05:19 GMT, Ted Edwards
wrote: There are two approaches to electronic ignition. One is to connect the coil across a power source, let the current build up then interupt it. V = L di/dt so voltage rises and in both primary and secondary until plug fires. That's how pointed ignition systems worked. Early "transistorized" ignitions simply replaced the points with a transistor triggered by points or optical or magnetic sensor. The second is capacitor discharge. Here a cap is charged up from an appropriate power supply and discharged through the coil primary. These are generally better. The power source can be a vehicle electrical system or a coil and magnet. Pretty quick and dirty explanation but there is just no way you're going to do it with just a Zenner diode. (I've designed and built a few of both kinds.) Ted Ted-I've always seen these types of diodes called zener, just one "n", not two. Are they really called zenner? ERS |
small engine electronic ignition
In article , Ted Edwards says...
The zener and SCR sounds like it may be the ticket. See my post elsewhere in this thread. That doesn't work. A zen(n)er alone obviously won't work. That plus an SCR to switch the current sounds almost plausible.... Jim ================================================== please reply to: JRR(zero) at yktvmv (dot) vnet (dot) ibm (dot) com ================================================== |
small engine electronic ignition
Ron Thompson wrote:
I was working on my father-in-law's lawnmower. I replaced the points and didn't want to do it every year. Replace the condenser. A bad condenser will either stop the engine dead or just get it to eat points. The zener and SCR sounds like it may be the ticket. See my post elsewhere in this thread. That doesn't work. Ted Yes, I should have said points and condenser. The end of the condenser is the lower contact of the points set. Ron Thompson On the Beautiful Florida Space Coast, right beside the Kennedy Space Center, USA http://www.plansandprojects.com The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer, English Philosopher (1820-1903) |
small engine electronic ignition
On Thu, 10 Jun 2004 07:33:00 GMT, Ron Thompson
wrote: Ron, Is this some kind of a special project you are working on, or do you just want to get your lawnmower running? If it's a case of just getting a mower running - provide some specifics like engine name, numbers, etc., and either I or someone else can probably help you out. Ken. I was working on my father-in-law's lawnmower. I replaced the points and didn't want to do it every year. I recalled this simple little circuit and got obsessed with finding it again. Still no luck. The zener and SCR sounds like it may be the ticket. Thanks everyone for your responses. In all my years of mowing with junk mowers, I have never replaced points; touched them up on the grinder a couple times, freed up the plunger occasionally and replaced the plug once or twice. Most I ever paid for a mower was $15.00 but that one lasted 22 years mowing a minimum of three lawns full time. Gerry :-)} London, Canada |
small engine electronic ignition
I will keep an eye out for a junked engine with an electronic module
in it. i have been curious about that too. Dan Ron Thompson wrote in message I was working on my father-in-law's lawnmower. I replaced the points and didn't want to do it every year. I recalled this simple little circuit and got obsessed with finding it again. Still no luck. The zener and SCR sounds like it may be the ticket. Thanks everyone for your responses. Ron Thompson |
small engine electronic ignition
In article ,
jim rozen wrote: In article , Ted Edwards says... The zener and SCR sounds like it may be the ticket. See my post elsewhere in this thread. That doesn't work. A zen(n)er alone obviously won't work. That plus an SCR to switch the current sounds almost plausible.... Only if you can depend on the ringing to turn the SCR off again. Not sure whether I would bet on that. Enjoy, DoN. -- Email: | Voice (all times): (703) 938-4564 (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html --- Black Holes are where God is dividing by zero --- |
small engine electronic ignition
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small engine electronic ignition
Eric R Snow wrote:
Ted-I've always seen these types of diodes called zener, just one "n", not two. Are they really called zenner? You are right and I am wrong. I just looked it up. It's Zener. BTW, NEVER trust my spelling, especially when it comes to ddoouubbllee leters. :-) Ted |
small engine electronic ignition
In article , Ted Edwards says...
I just looked it up. It's Zener. Maybe you were thinking of Gunnnn diodes.... Jim ================================================== please reply to: JRR(zero) at yktvmv (dot) vnet (dot) ibm (dot) com ================================================== |
small engine electronic ignition
jim rozen wrote:
Maybe you were thinking of Gunnnn diodes.... Actually, I new Dr. Gunn. He was a prof in the Solid State Physics group at University of British Columbia. It was told around the Physics department that on a trip to San Fransisco in his Jag, a piston colapsed. He pulled over to the side of the road, got out the tool kit and removed the piston and rod from that cylinder. He then carried on on seven to 'Frisco where he could get a replacement piston. Ted |
small engine electronic ignition
In article , Ted Edwards says...
Actually, I new Dr. Gunn. He was a prof in the Solid State Physics group at University of British Columbia. It was told around the Physics department that on a trip to San Fransisco in his Jag, a piston colapsed. He pulled over to the side of the road, got out the tool kit and removed the piston and rod from that cylinder. He then carried on on seven to 'Frisco where he could get a replacement piston. Ian Gunn worked at IBM research for some time. Apparently he had quite an attraction to earth moving equipment (backhoes) as well. Jim ================================================== please reply to: JRR(zero) at yktvmv (dot) vnet (dot) ibm (dot) com ================================================== |
small engine electronic ignition
On 14 Jun 2004 13:30:41 -0700, jim rozen
calmly ranted: In article , Ted Edwards says... Actually, I new Dr. Gunn. He was a prof in the Solid State Physics group at University of British Columbia. It was told around the Physics department that on a trip to San Fransisco in his Jag, a piston colapsed. He pulled over to the side of the road, got out the tool kit and removed the piston and rod from that cylinder. He then carried on on seven to 'Frisco where he could get a replacement piston. Uh, Ted. How did he get the oil pressure to stay up without a rod in place (to stop the gaping oil holes in the crank)? That sounds like an old story, back when you could see the engine as a separate entity from the underbonnet. Ian Gunn worked at IBM research for some time. Apparently he had quite an attraction to earth moving equipment (backhoes) as well. Who doesn't? arr arr arr -- Don't forget the 7 P's: Proper Prior Planning Prevents ****-Poor Performance ---------------------------------------------------- http://diversify.com Website Application Programming |
small engine electronic ignition
Larry Jaques wrote:
Uh, Ted. How did he get the oil pressure to stay up without a rod in place (to stop the gaping oil holes in the crank)? I have no idea. Hose clamp on the crank covering the oil hole? That sounds like an old story, back when you could see the engine as a separate entity from the underbonnet. Early '50s. Ian Gunn worked at IBM research for some time. Apparently he had quite an attraction to earth moving equipment (backhoes) as well. Who doesn't? arr arr arr Not many! It was summer. The walls were poured, damp-proofed and insulated. Time to backfill. We could have someone come in and do it in a day for around Cdn$400. For the same money, we could rent a Bobcat for a week. This was just before the July long weekend and we had a bunch of visitors comming. We decided to go the rental route. Well, our guests were unanimous that that Bobcat was more fun than a trip to Disney Land. There was a constant line up of eager drivers of all ages. The back filling got done along with some other earth moving projects. Ted |
small engine electronic ignition
On Mon, 14 Jun 2004 17:58:45 -0700, Larry Jaques
wrote: On 14 Jun 2004 13:30:41 -0700, jim rozen calmly ranted: In article , Ted Edwards says... Actually, I new Dr. Gunn. He was a prof in the Solid State Physics group at University of British Columbia. It was told around the Physics department that on a trip to San Fransisco in his Jag, a piston colapsed. He pulled over to the side of the road, got out the tool kit and removed the piston and rod from that cylinder. He then carried on on seven to 'Frisco where he could get a replacement piston. Uh, Ted. How did he get the oil pressure to stay up without a rod in place (to stop the gaping oil holes in the crank)? I actually saw a guy do it in our lot back in 1969. A 235 Chevy 6 in a '55 Bel_Air from Newfoundland pulled into the station, knocking like a son-of-a-gun. The young fellow bought a pan gasket and a rad hose clamp and borrowed a couple of wrenches. He crawled under the car with one set of wheels on the curb, dropped the pan, unbolted the offending con-rod, and jammed the piston up in the cyl with a block of wood. He then took off his belt, cut off the end, and wrapped it around the crankpin, clamping it with the rad hose clamp. He bolted the pan back on, filled it up with oil, and left Elmira Ontario for Come-By Chance or Joe Bat's Arm on the Granite Planet. So it CAN be done. That sounds like an old story, back when you could see the engine as a separate entity from the underbonnet. Ian Gunn worked at IBM research for some time. Apparently he had quite an attraction to earth moving equipment (backhoes) as well. Who doesn't? arr arr arr |
small engine electronic ignition
On Tue, 15 Jun 2004 02:28:04 GMT, Ted Edwards
calmly ranted: Larry Jaques wrote: Who doesn't? arr arr arr Not many! It was summer. The walls were poured, damp-proofed and insulated. Time to backfill. We could have someone come in and do it in a day for around Cdn$400. For the same money, we could rent a Bobcat for a week. This was just before the July long weekend and we had a bunch of visitors comming. We decided to go the rental route. Well, our guests were unanimous that that Bobcat was more fun than a trip to Disney Land. There was a constant line up of eager drivers of all ages. Sounds like a blast. I've never driven a tractor or bobcat. I'll have to ask that steam roller owner if I can stand on for the parade if his little boy isn't with him next week at the Pottsville, OR steam/tractor shindig. I can't believe the prices they get for those old hit 'n miss engines. thud -- Don't forget the 7 P's: Proper Prior Planning Prevents ****-Poor Performance ---------------------------------------------------- http://diversify.com Website Application Programming |
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