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Old 09-06-2008, 08:45 PM
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gas soaked cylinders?

when too much gas drowns the the cylinders and drys the rings out to where there is compression loss, enough to where it wont fire and it fouls the plug. do you pour motor oil in each cylinder to lube the rings back up and crank it over for awhile or does trans fluid work better? and how long do you leave it soak, a few minutes or over night?

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Old 09-06-2008, 09:03 PM
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Motor oil has a higher viscosity than tranny fluid so I would use motor oil. First thing is to find out why gas washed down the cylinders in the first place. Was the carb float set too high or the needle & seat not closing the supply off, etc. If enough gas leaked down the cylinders to wash them, you can bet the gas went right into the oil pan. Fix the flooding problem and then change oil & filter before you run it too long.
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Old 09-07-2008, 04:47 AM
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Had this problem, and it took a couple of filters and oil changes to get rid of the gas... One has to watch on a brand new re-build that the beast is going to fire ASAP without cranking over and over esp after ALL that money and time.. Just to be sure we lined up #1 and spun the oil pump, turned engine 180 degrees did the same, then, another 180 same thing and lastly another one hundred and eighty degrees and spun the oil pump.. Maybe overkill, but it was a bracket engine and therefore bucks... Again, much importante to have everything set up (timing & carb primed) to fire ASAP...
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Old 09-07-2008, 09:40 AM
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Quote:
Originally Posted by opelitis5
Had this problem, and it took a couple of filters and oil changes to get rid of the gas... One has to watch on a brand new re-build that the beast is going to fire ASAP without cranking over and over esp after ALL that money and time.. Just to be sure we lined up #1 and spun the oil pump, turned engine 180 degrees did the same, then, another 180 same thing and lastly another one hundred and eighty degrees and spun the oil pump.. Maybe overkill, but it was a bracket engine and therefore bucks... Again, much importante to have everything set up (timing & carb primed) to fire ASAP...
ive had this engine running once, to break the cam in. for a half an hour running very rich.
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Old 09-07-2008, 10:09 AM
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Sounds like the foul came from fuel. Ck carb. especially if you have an electric fuel pump. Half hour of cam run in is not enough to seat rings. Moly rings are especially suspect to not seating in short run period. Requires several heat/cool cycles. Seating rings is also specifically related to cly. wall finish. Thus the "cross-hatch" hone pattern.

Change plugs, fix fuel flooding problem, install engine in vehicle, drive to seat rings. This is if cly to piston clearences are correct.
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