Hey, I'm new!!!

[Ken Davidson <twotal@waverider.co.uk>]

Hello folks!

I'm new to this list, having just purchased a 1982 Scirocco GL here in 
the UK as a daily driver. I've just garaged my Triumph TR7v8! That'll get 
you talking!!

I've got a problem perhaps someone can shed some light on: The car runs 
fine for the first 20 minutes then develops a misfire. The carb setup is 
fine, as is proved by good cold starting and running after warm up. The 
temp needle eases its way to about 3/4 and then the misfire starts. There 
is pressurisation of the coolant. I suspect the cylinder head gasket but 
my practical experience of this is slight. The engine oil is not 
emulsified, hence contains no water and the coolant is clean (apart from 
rust colour!). Water into the combustion chamber inhibiting the spark? 
Would water vapour actually do this or would the overall temperature and 
speed of combustion mask this effect?

I've yet to check compressions - what do I look for to diagnose a gasket 
problem?

Thanks in advance for your help!!
-- 
Ken Davidson, partner, 2tWEBS & 2talented

1981 TR7V8 DHC, 1982 VW Scirocco GL
"Hold my calls - I'm going for a blart!"

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