Idle Issue when Hot

dirtyoldman

Petty Officer 1st Class
Joined
Apr 30, 2007
Messages
359
I am having an issue when the engine is hot. The engine idles fine when cold, but dies when hot. It will idle fine just above idle, and is fine on the lake. The carb was rebuilt last year, and I just adjusted the choke. It's opening fully. The impeller was new last year and the engine is not running hot at all.

I am guessing this is a vapor lock issue and was considering wrapping the metal fuel line with a cut open rubber hose to insulate it. Am I diagnosing it wrong here? I really don't want another surprise when docking....
 

dirtyoldman

Petty Officer 1st Class
Joined
Apr 30, 2007
Messages
359
Re: Idle Issue when Hot

WHoops! tHIS IS A 1968 Mercruiser 160 with a rochester two barrel.
 
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