Re: Vapor lock

Posted by Owen_Dyneto On 2009/6/28 12:06:27

Perhaps I'm not the best one to comment, having hever experienced vapor lock, even crawling along on 100 deg. days in July 4th parades at 1/2 mph. But it seems we're looking to overengineer things. I think the keys are:

1. Properly rebuilt mechanical pump
2. Heat shields in place where called for
3. Proper size fuel lines, intelligently routed
4. Absence of restrictive fittings or excess elbows
5. Engine cooling system in good condition
6. Engine properly tuned including timing
7. No overrestrictive exhaust (undersize components)
8. NO filters or restrictions on the suction side. If you must have something, use a felt sock on the pickup tube inside the tank.
9. If you must do more, try a small amount of diesel or MMO in the fuel.