03-16-2015, 02:47 PM
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CC Member
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Join Date: May 2008
Location: Brisbane,
QLD
Cobra Make, Engine:
Posts: 2,797
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Not Ranked
We need to work out whether the fuel is leaking internally or evaporating (or both).
If you cold start the engine and run for a short period without putting a lot of heat into the engine, then let it sit for 2 days, do the float levels stay correct or drop down as stated?
If they do drop, I'd look at the power valve gaskets and/or the power valve diaphragms for leaks.
If they don't drop, then I'd be looking at adding a phenolic or wood carburettor spacer to help insulate the carb from the engine temperature at hot shutdown.
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Gary
Gold Certified Holden Technician
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