>My 1500 spitfire will not consistently idle below 1200 rpm.
>Can this be caused by a leaking inlet gasket?
>How can I test if the gasket is leaking? I read somewhere that
>you can spray a certain fluid around the manifold with the
>engine running and a leaking gasket would cause this fluid
>to be sucked into the engine and cause misfiring or at least
>a change in rpm. I just don't remember what fluid this was or
>where I read about it. Any ideas?
This could be the emmission valves in the carburettor butterflies having weak
springs. My Mk IV had a similiar problem until I replaced the butterflies with
solid ones without the valves
Obviously, the above is assuming that your carburettors have these valves.
Rich
Northampton
England.
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