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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Aug 2001 Posts: 3,592 Moderator | | Moderator Joined: Aug 2001 Posts: 3,592 | I think BC has hit the issue.
Suction from the pump to the pre filter is drawing air in.
When the engine is not running, there is no pre pump line pressure or vacuum.
Other than a little static head pressure from the tank.
Fuels pumps are just a small rubber diaphragm pump.
My suggestion is to get rid of the pre filter or move it to the discharge side of the pump.
Don
1967 GMC 9500 Fire Ladder Truck"The Flag Pole"In the Stovebolt Gallery1946 2-Ton grain truck 1946 3/4-ton pickup, 1953 1-ton pickup 1957 1-ton flatbed dually, 1954 Pontiac Straight Eight Of all the things I've lost in my life, I miss my mind the most! | | |
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