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Engine acting funny.

Engine acting funny.

Old 08-20-2009, 08:19 PM
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Default Engine acting funny.

After tearing down my engine and discovering it lost some compression, I put it back together and started it up. If I leave the igniter in, it runs OK. When I take it out, the engine bogs, warbles, pops, gargles, spits, smokes, etc. but only when accelerating and deccelerating. I've been trying to tune it but haven't had much luck. I replaced the glow plug not too long ago (about maybe 1/4 of a gallon run through the current glow plug). What could be causing this, and how could I fix it?
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Old 08-20-2009, 08:23 PM
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Have ya check to se if you put the piston in backwards? It is possbile, and wil run but not very good...
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Old 08-20-2009, 08:26 PM
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Originally Posted by mudboger07 View Post
Have ya check to se if you put the piston in backwards? It is possbile, and wil run but not very good...
I took everything except the piston and sleeve out. I left those alone.
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Old 08-20-2009, 08:26 PM
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new shims and seal that bad boy up.
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Old 08-20-2009, 08:40 PM
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Like covielle said seal the back plate and card with silicon and id install a new plug then prob recheck your tune.......
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Old 08-20-2009, 08:46 PM
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Oh, it also smokes like crazy. There's tons of blue smoke coming from all around the engine
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Old 08-20-2009, 08:53 PM
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replace the plug if that doesnt help lean the engine out, no engine will run rich with an airleak its physiclly impossible.
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Old 08-20-2009, 08:53 PM
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again after sealing the motor, you might want to check the ext gaskets, it could also be the bearings......
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Old 08-20-2009, 09:06 PM
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Originally Posted by mudboger07 View Post
again after sealing the motor, you might want to check the ext gaskets, it could also be the bearings......
BTW I bent a shim but I didn't think it mattered because it is being squished by the cylander.
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Old 08-21-2009, 07:32 AM
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Originally Posted by sokar View Post
BTW I bent a shim but I didn't think it mattered because it is being squished by the cylander.
It matters, if it it was bent enough, then the head might not be able to squish it flat. metal stretches when its bent. When you straighten it, it deosn't go back to where it was very well, especially a ring or round piece.
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Old 09-03-2009, 10:47 AM
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Originally Posted by HaulinBass View Post
replace the plug if that doesnt help lean the engine out, no engine will run rich with an airleak its physiclly impossible.
This doesn't make sense to me. If an engine isn't getting as much air as it should, wouldn't there be more fuel than needed, therefore it's rich ? Or do you mean "rich" as in the amount of fuel it'd need if the air was right ?
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Old 09-04-2009, 12:06 PM
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an engine that is sucking air from somewhere else other than the carb, cannot run rich. the fuel and air go through the carb at a certain mix if there is air entering the engine anywhere else than more air is getting added to that mix and its being carborated again.
Think about it like sucking a pool of water up with a water pump if you put a huge hole in the suction hose its going to suck a bunch of air instead of water.
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Old 09-04-2009, 01:43 PM
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Oh I was thinking that an airleak let air out, not extra air being sucked in.
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