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3 re-builds on I have started to loose confidence!
The Specialist is looking into it deeper this week.
I've learnt that there was hissing in the exhaust manifolds when leak testing so the ex valves not seated/lapped in properly (by me)?
If that is actually the case then all the heads off again, clean lap rebuild seals etc etc. If so this will be the 4th time in 12 months!
Admittedly, the air cooled engine is very simple to install compared to the waters and coolers, but I'm getting bored and tired of the thing all over again.
There has barely been a benefit to the work and the cost.
Perhaps it just is not meant to be in my hands.
I may feel better with more news later this week.
With #4 showing a 60% leak rate there must be a serious leak somewhere in that cylinder, and I doubt a poorly lapped-in exhaust valve would cause that rate of decay.
# 4 cylinder and piston were to factory spec before going in with fresh rings, new inlet and ex valves and two new seats/guides and a re-face also!
All head studs are tight.
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