Home |
Search |
Today's Posts |
|
Home Repair (alt.home.repair) For all homeowners and DIYers with many experienced tradesmen. Solve your toughest home fix-it problems. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
#1
Posted to alt.home.repair
|
|||
|
|||
MTD riding lawn mower blows smoke out of muffler and air filter. Briggs and Stratton engine.
I've got a 13 year old MTD riding lawn mower. It has a 12hp Briggs
and Stratton engine. It ran fine one day and the next day it blew fire out of the muffler, (I didn't witness that with my own eyes) it has oil in the muffler and the last time I tried to start it, it spewed a lot of oil out of the air intake. Do you have any ideas as to what could cause this? I was suspecting the rings and I've taken the cylinder out. What am I looking for at this point? Upon visual inspection, I'm not seeing anything that catches my eye. Is a visual inspection enough to determine if the rings are bad? I was expecting to find something obvious since it went from working fine one day to broke the next. Maybe it's not the rings. Any other ideas or suggestions? Thanks for the help. Dale |
#2
Posted to alt.home.repair
|
|||
|
|||
MTD riding lawn mower blows smoke out of muffler and air filter. Briggs and Stratton engine.
|
#3
Posted to alt.home.repair
|
|||
|
|||
MTD riding lawn mower blows smoke out of muffler and air filter. Briggs and Stratton engine.
I removed the piston from the cylinder. None of the rings are
cracked. The cylinder doesn't have any scores or doesn't appear to be warped. The valves open and close properly. When I manually pushed open the intake valve oil drained out of it. Could oil somehow be getting into this valve instead of leaking around the piston/rings? Can you think of anyway that's possible? I'll investigate that tonight. When I drained the oil, it was a nice mixture of oil and gas. Looking for more ideas. If I find anymore clues tonight, I'll post it. Thanks, Dale |
#4
Posted to alt.home.repair
|
|||
|
|||
MTD riding lawn mower blows smoke out of muffler and air filter. Briggs and Stratton engine.
|
#5
Posted to alt.home.repair
|
|||
|
|||
MTD riding lawn mower blows smoke out of muffler and air filter. Briggs and Stratton engine.
On Jul 12, 9:01 am, wrote:
I've got a 13 year old MTD riding lawn mower. It has a 12hp Briggs and Stratton engine. It ran fine one day and the next day it blew fire out of the muffler, (I didn't witness that with my own eyes) it has oil in the muffler and the last time I tried to start it, it spewed a lot of oil out of the air intake. Do you have any ideas as to what could cause this? I was suspecting the rings and I've taken the cylinder out. What am I looking for at this point? Upon visual inspection, I'm not seeing anything that catches my eye. Is a visual inspection enough to determine if the rings are bad? I was expecting to find something obvious since it went from working fine one day to broke the next. Maybe it's not the rings. Any other ideas or suggestions? Thanks for the help. Dale Did you check the oil level before you tore it down? Overfilling the oil will cause it to blow out the muffler. Red |
#6
Posted to alt.home.repair
|
|||
|
|||
MTD riding lawn mower blows smoke out of muffler and air filter. Briggs and Stratton engine.
|
#7
Posted to alt.home.repair
|
|||
|
|||
MTD riding lawn mower blows smoke out of muffler and air filter. Briggs and Stratton engine.
On Thu, 12 Jul 2007 13:17:50 -0700, Red wrote:
On Jul 12, 9:01 am, wrote: I've got a 13 year old MTD riding lawn mower. It has a 12hp Briggs and Stratton engine. It ran fine one day and the next day it blew fire out of the muffler, (I didn't witness that with my own eyes) it has oil in the muffler and the last time I tried to start it, it spewed a lot of oil out of the air intake. Do you have any ideas as to what could cause this? I was suspecting the rings and I've taken the cylinder out. What am I looking for at this point? Upon visual inspection, I'm not seeing anything that catches my eye. Is a visual inspection enough to determine if the rings are bad? I was expecting to find something obvious since it went from working fine one day to broke the next. Maybe it's not the rings. Any other ideas or suggestions? Thanks for the help. Dale Did you check the oil level before you tore it down? Overfilling the oil will cause it to blow out the muffler. I've seen smaller B&S (maybe 5hp) with the horozontal cyl. smoking like crazy when overfilled with oil. Dunno if the OP's 12hp is horozontal or vertical. Never saw one blow fire out the muffler. P "Mit der Dummheit kaempfen Goetter selbst vergebens!" -Friedrich Schiller |
#8
Posted to alt.home.repair
|
|||
|
|||
MTD riding lawn mower blows smoke out of muffler and air filter. Briggs and Stratton engine.
On Thu, 12 Jul 2007 23:42:05 GMT, Puddin' Man
wrote: Never saw one blow fire out the muffler. Maybe after dark. The OP never saw it; but he pulled a piston?! -- Oren ...through the use of electrical or duct tape, achieve the configuration in the photo.. |
#9
Posted to alt.home.repair
|
|||
|
|||
MTD riding lawn mower blows smoke out of muffler and air filter. Briggs and Stratton engine.
Yes, it was definitely hasty (stupid) of me to yank the thing apart.
I'm a beginner at small engines and I had three guys standing around confidently saying it's the rings. I acted impulsively and I'm now slapping myself for it. Live and learn I suppose. Anyways, I think you're right, it's going to end up being overfilled oil. I put the thing back together and I'm getting ready to fire it up and see what happens. Thanks for the advice so far. |
#10
Posted to alt.home.repair
|
|||
|
|||
MTD riding lawn mower blows smoke out of muffler and air filter. Briggs and Stratton engine.
I fired it up and so far so good. Geesh!!
Stick around. Next week I'll be doing a complete carb tear down when I run out of gas. LOL |
#11
Posted to alt.home.repair
|
|||
|
|||
MTD riding lawn mower blows smoke out of muffler and air filter. Briggs and Stratton engine.
On Fri, 13 Jul 2007 11:49:41 -0000, wrote:
I fired it up and so far so good. Geesh!! Stick around. Next week I'll be doing a complete carb tear down when I run out of gas. LOL Glad you can laugh at yourself :-)) -- Oren ...through the use of electrical or duct tape, achieve the configuration in the photo.. |
#12
Posted to alt.home.repair
|
|||
|
|||
MTD riding lawn mower blows smoke out of muffler and air filter. Briggs and Stratton engine.
|
#13
Posted to alt.home.repair
|
|||
|
|||
MTD riding lawn mower blows smoke out of muffler and air filter. Briggs and Stratton engine.
|
#14
Posted to alt.home.repair
|
|||
|
|||
MTD riding lawn mower blows smoke out of muffler and air filter. Briggs and Stratton engine.
On Jul 12, 6:42 pm, Puddin' Man wrote:
Did you check the oil level before you tore it down? Overfilling the oil will cause it to blow out the muffler. I've seen smaller B&S (maybe 5hp) with the horozontal cyl. smoking like crazy when overfilled with oil. My 18hp B&S twin cyl. has done it several times. Red |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Briggs & Stratton 3.5hp Engine Will Not Start with Air Filter Bolt Installed | UK diy | |||
Briggs & Stratton 3.5hp Engine Will Not Start with Air Filter Bolt Installed | Home Repair | |||
19.5HP Briggs & Stratton - Yardman Mower Engine Problems | Home Repair | |||
12.5 HP Briggs and Stratton Engine on Sanapper Riding Mower | Home Repair | |||
briggs & stratton lawn mower problems | UK diy |