Re: WHat causes pressure in the valve cover?

[cobram@juno.com (. .)]

ggthack@swansea.ac.uk (Graham Thackrah) writes:

>Well we finished the job at half one last night and got it started 
>fine. Trouble is the pressure behind the oil filler cap is still 
>there.

>Why?

Another possibility is blowby getting past the piston.  
When it overheated it may have caused damage to the lower 
end, although the compression readings seem good. Maybe a 
wet compression test may reveal something. If the car sat 
for a very long time in humid conditions with head off, 
the piston rings may have seized.  Is there any unusually
high oil consumption also? How do the plugs look?

BCNU,

Cobram@Juno.Com
http://www.geocities.com/MotorCity/Flats/1469/

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