I’ve decided to buy a NOS AC 4149 and a rebuild kit from Then and Now and am looking for help removing the valves. I have experimented on the old Airtex one I took off with no luck. They look to be a press fit and I have not been able to budge them. Any insights from someone who has done this?
Blue 50
1950 3100 w/57 235 Patrick’s Saginaw 4 speed and 3:55 rear end
You'll need to fabricate a fixture to push the check valves into the housing without putting any pressure anywhere except the outer edge. That shouldn't be much of a challenge for anyone with basic machining skills and the right tooling. An arbor press or just a heavy duty C clamp should be needed. Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt! There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway Love your enemies and drive 'em nuts!
Maybe try to find a small socket from a quarter inch set thats just right size to chase those check valves in, with a c-clamp, as Jerry suggests. Not too hard.
~Charley 1954 Chevy 3100 with 235 “Bud” Follow along in the DITY 1963 Chevy half ton stepside short box 230 1954 GMC 3 ton 302 And several more Chevy camper and work trucks 1979 1987 1996
Once you get the old ones knocked out, a socket the right size and a bench vise would probably work to push them back into the housing. Make sure they face the right direction so the flow is toward the carburetor- - - -they're both the same part, just a one way spring loaded valve. The tension of the spring provided in the rebuild kit controls the output pressure of the pump. Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt! There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway Love your enemies and drive 'em nuts!
What is included in the rebuild kit, and what does it cost? I'm tempted to buy one, and fabricate the tooling needed to install the check valves as a demonstration project. I have a sneaky suspicion an ammunition reloading press could be adapted to install those check valves, once the fixtures are fabricated.
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt! There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway Love your enemies and drive 'em nuts!
Cadillac fuel pumps that I've rebuilt in the past had similar valves. They just pressed in by hand and then were staked around the edge to keep from popping out per the shop manual.
1950 Chevrolet 3100 (Ol' Roy)
1939 Packard Standard Eight Coupe (The Phantom) | 1956 Cadillac Coupe de Ville (The Bismarck) | 1964 Ford Galaxie 500 coupe |1966 Ford Mustang (Little Red) | 1969 Pontiac GTO (The Dishpit) I 1979 Ford F-100 | 1976 Ford F-150 (Big Red) | 1995 Ford F-150 (Newt)
Make sure to take note of inlet and outlet orientation. Do one at a time.
1950 Chevrolet 3100 (Ol' Roy)
1939 Packard Standard Eight Coupe (The Phantom) | 1956 Cadillac Coupe de Ville (The Bismarck) | 1964 Ford Galaxie 500 coupe |1966 Ford Mustang (Little Red) | 1969 Pontiac GTO (The Dishpit) I 1979 Ford F-100 | 1976 Ford F-150 (Big Red) | 1995 Ford F-150 (Newt)
