My 84 sporty usually needs a front rocker box gasket every six months! The last time I used Yamabond with the same result. This time im going to try Permetex copper. Anyone else have this problem or a good idea?
guardrailjim
Favorite Answer
Check the engine surfaces with a straight edge.
Any imperfections will cause gasket leakage.
?
You are over-tightning the bolts and that is why it keeps leaking. You may strip them and they will always leak after that. Get new replacement gaskets which are rubber coated metal and are far superior to the OEM gasket.
http://stagesgrief.blogspot.com/2014/03/replace-rocker-box-gasket-on-1200-harley.html
http://www.jpcycles.com/product/433-814
adam
your link refers to an EVOLUTION 1200 CC sportster. I am running a LATE 1984 iron sporty different animal not even close. l
Joe
What's a Harley without an oil leak?
Candid Chris
Another reason might be that the engine is running too lean due to a freer-flowing exhaust without an up-jet.