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#1
10-24-2023, 11:59 AM
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127 oil film on motor **SOLVED**
Hi All.
I hope everyone is well. I have an issue with my 127 as it has been really hard to start lately and I noticed an oily film all over the outside of the block. When I do get it started it runs and idles like it's brand new but it smokes like a steamer when first starting it. I pulled the plug and installed a new autolite with the correct gap. The old plug wasn't just wet with gas but had a pretty oily sludge around the electrode pocket. The new plug didn't help with the really hard starts but once it's running you would never know there is any issue whatsoever. It seems pretty apparent that oil is getting into the cylinder past the rings I'm not sure if its the oil rings or a valve? I'm guessing its not a valve but I'm not sure. I had the head off before I put it back together after I bought it and the cylinder looked really good and didn't show much in terms of scoring or wear. I filed the points just for kicks but I can't see how points and timing would have anything to do with oil in the cylinder and oil film on the outside of the engine.? Anything I should check or look at? It's a Kohler k301. 
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#2
10-24-2023, 03:33 PM
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There could be one, or many things in play causing your woes, but pertaining to the oil film and smoke after startup, one of the easiest things to check out would be the crankcase breather.
It is supposed to maintain a slightly negative crankcase pressure, but if it's clogged, damaged, installed incorrectly, etc. that can cause positive crankcase pressure and force oil up past the rings.
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#5
10-30-2023, 09:48 AM
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Partial update for anyone interested.
The plate that has "top" marked on it with the weep hole at the bottom was installed upside down by whomever had it before me. I have a gasket set coming tomorrow and will report back how things go. The air cleaner had a decent amount of oil in it and was pretty dirty and it was new probably 4 hours of operation ago. Oil was definitely going places it shouldn't and blowing everywhere externally as well. I may have to take the carb apart to clean the junk out of it.
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#6
10-30-2023, 10:03 AM
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Thanks for the update. Amazing that people are interested enough to
take things apart but not enough to put top at the top. You would think the vent pointing up would have been a clue. For what it is worth, even all put back together correctly I have had those breathers leak at the gaskets slightly. I have taken to putting a THIN layer of sealer at the gasket contacts. I am talking 1/10 of paper thin. This has helped alot. Ken
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