Ferrari Mailing List: Re: 512 temps

[Doug & Terri (dnt]

Clyde notes rising engine temps in his 512 TR “Going to do a block test to see if I am getting any leak a minor one thru the head gasket into the coolant.  That's the only thing left “

 

Certainly one of the last things – but advanced timing (is your car ‘chipped’?) can cause this as well as a lean mixture.  You’ll need a separate set of instruments to check those.  Also a weak O2 sensor not responding to too much O2 is another.  A lean mixture caused by an air leak.  Go around the intake joints with a propane torch – UNLIT of course.  Any change in RPM – that’s an air leak.

 

Of course, I could be wrong on these but my advice is free so you know what it’s worth.

 

Onward

 

DOUG