By Adrian - Sun May 02, 2021 1:50 pm
- Sun May 02, 2021 1:50 pm
#96577
This could be a damaged spark plug seat, just needs a good clean to check and a bit of gentle refacing on a milling machine if so.
However that does not solve the problem of how so much oil is getting past the rings or the valve guides. If your engine experiences the condition known as wet-sumping, i.e. engine oil build-up in the bottom of the crankcase, usually from the timing chest, while the engine isn't running, this can briefly overwhelm the oil scraper ring on the piston - even a good one - when you start the engine and account for some excess oil in the cylinder. The oil scraper ring will usually clear it after a while once the engine has been running for a few minutes.
I can't remember, but have we discussed the oil seal that is supposed to sit behind the crankshaft timing pinion?
A.
However that does not solve the problem of how so much oil is getting past the rings or the valve guides. If your engine experiences the condition known as wet-sumping, i.e. engine oil build-up in the bottom of the crankcase, usually from the timing chest, while the engine isn't running, this can briefly overwhelm the oil scraper ring on the piston - even a good one - when you start the engine and account for some excess oil in the cylinder. The oil scraper ring will usually clear it after a while once the engine has been running for a few minutes.
I can't remember, but have we discussed the oil seal that is supposed to sit behind the crankshaft timing pinion?
A.