Think i've tracked down the oil leak on my motor to just under the head gasket behind the exhaust manifold. Really annoying, as it keeps dripping (in small ampounts) on the exhaust and smoking, not a regular occurance but when it happens it bloody annoying and embarasiing due to the smoke billowing from my bonnet vents at the lights. So can anyone advise as to how to sort it? I hads some head work done lately, i.e. valve re0grind and de-carb and new stem seals. I noticed that the guy didn't fit new head bolts: could this be the cause as it was ok for about three months after the work was done and has only recently leaked. Any ideas? Would fitting new head bolts sort it? Would i need to replace the head gasket . . . .again!????
I would have said that if there is oil leaking from the head gasket then either your head gasket is knackered or the head is warped. Take it back to the man and demand he repair it(assuming it was a garage).
There is no point messing about with this one, i recon its a head off, check for warped and torque it down with "new bolts" and a new gasket.
It's a shame m8y as a small short cut can lead to a big headache, not saying it was the bolts that caused it but Vauxhall specify you replace them for a reason.
> Think i've tracked down the oil leak on my motor to just
> under the head gasket behind the exhaust manifold
I had the same thing on my Nove GTE (E16SE) engine, it turned out to be a broken head gasket, just on the edge, so it never leaked oil inside, just to the outside world all the time. I replaced it with a new gasket and its been fine since.
> the guy didn't fit new head bolts
if a bolt has to be done up in angles, then you need a new bolts. This is termed as a 'stretch bolt'. Once a bolt has been 'streched', if you use it again and do it to torque first, it will be wrong. So the bolt for starters isn't torqued up correctly even before you angle it up.
> Would i need to replace the head gasket
yes, there only about £7 from VX dealer (with trade club that is or autovaux)