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#40437 03/03/2005 11:20 PM | Joined: Jan 2001 Posts: 142 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2001 Posts: 142 | I am redoing the lines after some engine work and I am wondering where to put the fuel filter. I see a glass bowl type from Chevy Duty that is kinda neat. Guys at the LAPS say the filter should be after the pump. So install right before the carb? | | |
#40438 03/04/2005 1:26 AM | Joined: Oct 2002 Posts: 77 Wrench Fetcher | | Wrench Fetcher Joined: Oct 2002 Posts: 77 | I like to filter fuel before it reaches the pump as any contamination in the tank will be filtered before it hits the check valves in the fuel pump. | | |
#40439 03/04/2005 6:52 PM | Joined: Jan 2005 Posts: 310 Shop Shark | | Shop Shark Joined: Jan 2005 Posts: 310 | The original dealer installed glass bowl fuel filter was installed just before the carby. There are exact instructions in the accessory installation manual (if you have one of those). It might not hurt to add another one before the pump, to catch all of that extra crud from the tank before it enters the pump. I'm thinking about doing that this spring, because it doesn't take any time at all for my glass bowl to fill up with rust.
-Tim
'51 Chevy 3104 w/'56 235, 848 Head, HEI Dizzy, Corvette Cam, Split Manifold and Dual Carter YF's
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#40440 03/04/2005 8:18 PM | Joined: Oct 2001 Posts: 3,458 Extreme Gabster | | Extreme Gabster Joined: Oct 2001 Posts: 3,458 | Its best to put the filter on the outlet side of the pump, mounted vertically before you get up to the valve cover crossover. That way if the filter springs a leak the hot gas doesn't drip onto the manifold, it just hits the lower block which is much cooler.
Mechanical pumps don't suck very well so only put a screen filter at most in between it and the tank.
Paint & Body Shop moderator
A lone amateur built the Ark. A large group of professionals built the Titanic. | | |
#40441 03/04/2005 11:30 PM | Joined: Oct 2002 Posts: 77 Wrench Fetcher | | Wrench Fetcher Joined: Oct 2002 Posts: 77 | I have been installing a filter before the fuel pump since I bought my first bolt in 1965, a 1946 1/2 flatbed that had sediment in the tank which caused the fuel pump to be taken apart and the pump cleaned of debri before continuing on my way, 38 years or driving one bolt or another and have never had a problem of fuel pump not sucking. Fuel tanks that have not been cleaned or replaced all have some degree of sediment from years of use or abuse, better safe than setting beside the road. | | |
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