Excessive Smoke - Help
Posted: Wed Dec 04, 2019 9:21 am
Hi,
I bought a V8 engine that was smoking excessively when revved up, no problem ticking over.
In order to rule out over fuelling, fitted a manifold with SU carbs on, no different.
Stripped down and found that the 4.6 had 3.9 heads fitted. Engine was extremely clean inside.
I found 5 of the rubber washer type valve stem seals had split/come off and thought that that was the problem.
Pulled all pistons out and no broken rings, bores all looked ok. Fitted new Big End bearings while I was in there.
Rebuilt, new head gaskets, valve stem seals (Cup type) etc and no difference, still smoking badly. Tried to upload video, but can not seem to manage. Smoke is very smelly.
Look forward to hearing from you.
Michael
I bought a V8 engine that was smoking excessively when revved up, no problem ticking over.
In order to rule out over fuelling, fitted a manifold with SU carbs on, no different.
Stripped down and found that the 4.6 had 3.9 heads fitted. Engine was extremely clean inside.
I found 5 of the rubber washer type valve stem seals had split/come off and thought that that was the problem.
Pulled all pistons out and no broken rings, bores all looked ok. Fitted new Big End bearings while I was in there.
Rebuilt, new head gaskets, valve stem seals (Cup type) etc and no difference, still smoking badly. Tried to upload video, but can not seem to manage. Smoke is very smelly.
Look forward to hearing from you.
Michael