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Larry Jaques[_4_] Larry Jaques[_4_] is offline
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Default Best O ring Material for drive belt?

On Sun, 04 Sep 2016 04:16:41 -0700, Gunner Asch
wrote:

On Sat, 03 Sep 2016 20:11:40 -0700, Larry Jaques
wrote:

On Sat, 03 Sep 2016 12:16:44 -0700, Gunner Asch
wrote:
With too much speed, they will add their own tension, stretching
towards a full circle. But for cartridge tumbling speeds, I don't think
that you have to worry about that. :-)

At what speed does dem li'l vibrators run, anyway? I've never had one
apart. Do they use a wildly imbalanced shaft, like a lady's vibrator
or a phone?
Pretty much it. The bowl is on springs and the out of balance weight
rides on the bottom of the bowl holder assembly...so when the belt
turns the out of balance weight..it transfers directly to the bottom
of the bowl holder. The bowl is 18" in diameter and 6" deep, with a
cone formed in the center so as it shakes..the media and contents
travels both around the bowl and as it travels..it also dives down
from the outside and comes up next to the cone. I dumped half a 5
gallon bucket of .38 Spec brass in it and filled it to within 2" of
the top with crushed walnut hulls and a double handful of 3/8
triangular ceramic polishing media and turned it on. Almost dumps
media out of the bowl..its quite powerful. There are (2) pulleys on
the motor..so I used the smaller pulley as the large one was eating up
my o rings rather quickly (bigger diameter..more stretch) and on the
large motor pulley..it would bring the media up and out of the bowl.

No idea what rpm it runs at..probably 1750.


Fractional horsepower rating?


Ive really no idea. Motor is not marked. Its about the size of a half
pint, touch up, paint can. The motor itself is an open frame
type..and it MUST have ball bearings in it...Ive used this thing for
2+ decades cleaning dusty materials...so if it was bushings...they
surely would have been worn out by now. I doubt if its any bigger
than 1/16hp. Ill shoot a couple pics of it later today. I didnt think
there would be this much interest...chuckle.



Rubber crutch tips on
the 4 legs are supposed to hold it in place..but the crutch tips are
hard as a rock with age and it skips across the table top easily..so I


You can get new crutch tips for $3 at Wally World.


Thanks again!


put it on a couple bags of lead shot and let the legs settle in..holds
it well enough. But Ill replace the crutch tips..but the legs are
about 1 1/4" in diameter..so finding those will be a trip...shrug


Nah! http://tinyurl.com/hvo4koj


Cool! Ive actually got a number of gizmos that need replacement
feet..thanks for the link!

Btw...got the new/rebuilt engine fired up in Moby the Van
yesterday..after 6 months of ****ing around with it.


That's a giant WHEW, I'm sure. Did you rebuild it yourself, or buy a
rebuilt from a motor factory? I remember the giant hassle it was to
do the AMC 390 in my converted garage, but the ~425hp and 450ft/lb of
torque were worth every hour I had spent building it. The only non
stock part was a Crower cam. That Javelin would git 'n ****, and
sounded rumbly at an unstable idle, just as it should. Other than my
Tundra, it has been my favorite car. Third was the '72 Scout. It was
only 2wd, but I took it flying on the dirt roads and hills. In the
summertime, I'd pop the top. The roll bar worked as a frame for the
bikini top I stitched up for it out of denim. Girls loved it.


The van/ engine (351W) only had 12,398 miles on it, and it now has
Zero miles on a rebuilt engine. New rod and main bearings, new rings,
most of the hoses are new (and there are a ****LOAD of them), new
sensors, etc etc.


Why'd you rebuild it?


Its tighter then hell...we had to pump oil through the engine by


Did you platsigage the mains and rods before running? I had my crank
turned 0.010" and installed the 10 under bearings for it. A machine
shop did my block and heads. IIRC, the entire overhaul cost me about
$500 back in the early '80s. Now they're getting $3500 for crate
engines. It's a good thing that you spun up the oil pump. Did you
mix some STP with oil for a pre-oiling of the bearing surfaces before
assembly, once you were done plastigaging? Mine all showed 1.5
clearance. (0.0015) Handy plastic strips, those.

Curious about current crate prices, you could have bought yours for
$1,640 from Amazon. Or paid $16.5k for a racing engine. thud
http://tinyurl.com/zhlrebv


spinning the oil pump for 15 minutes, before she would turn over. Now
it starts and runs pretty darned well. Wont restart yet after an hour
run time, until it cools down a bit...rings are not seated completely
yet.


Did you get a proper crosshatch? It's very important for seating the
rings.


This morning Ill be setting timing properly with a timing light,
then Ill figure out why the gas gauge doesnt read on either of the
tanks, and using the OBD1 code reader I borrowed to narrow down any
other issues, etc etc etc.


I picked up a bluetooth version of an ELM 327 for $2.20 last month,
before my trip south. I waited, not wanting to accidentally put it in
limp mode before an 850 mile trip. RPM and vacuum showed up
correctly, but I realized that the little smart phone with 3.8" screen
wasn't the best bet for on-the-road gauging. Considering a Plum 8"
Phablet in the future.


With a bit of luck and prayer..Ill have the old girl hauling one of my
sailboats out to the lake Monday. Yay!!! Only 8 months since Ive been
sailing..and Im jonesing badly...sigh


G'luck to ya, sir. Have fun! Hoist a spinnaker for me.
It's 45F here this morning, not exactly yachting weather.

--
Every day I remind myself that my inner and outer life are
based on the labors of other men, living and dead, and that
I must exert myself in order to give in the same measure as
I have received and am still receiving.
-- Albert Einstein