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Vapor Lock Solution? [message #281848] Fri, 10 July 2015 19:04 Go to previous message
Carl S. is currently offline  Carl S.   United States
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
Karma:
Senior Member

I am trying the vapor lock solution that was suggested by Michael Morton a while back. Like him, I had my Q-jet filter housing modified with a return line outlet at the top of the housing. My mechanic drilled, tapped, and soldered in a fitting to attach a return line to the gasoline filler pipe. I then had him tap into the filler pipe and run the line for me. I would have done that part myself but for having wrist surgery about 6 weeks ago making me unable to use my right hand fully.

The theory is the same as using the three port mechanical fuel pump or a three port filter, but it eliminates any deadhead all the way to the carb. Michael said this was the thing that FINALLY cured his vapor lock issue. I'm hoping for the same results, having tried everything else, but in tank pumps.

Pics at: http://www.gmcmhphotos.com/photos/g6819-carburetor-fuel-return.html


Carl Stouffer '75 ex Palm Beach Tucson, AZ. Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
 
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