bad out of the box.

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   I just bought a fuel/vacuum pump from rock auto. Its a Air tex pump which I thought were a good brand. It leaks gas bad out of the housing of the pump body.
any one else received pad pump out of box? what brand should I look for?

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IronAge52 Members Profile Send Private Message Find Members Posts Add to Buddy List Member Joined: 22 Aug. 2016 Location: San Diego Status: Offline Points: 257	Post Options Post Reply Quote IronAge52 Report Post Thanks(0) Quote Reply Topic: bad out of the box. Posted: 13 June 2018 at 7:25pm
	I just bought a fuel/vacuum pump from rock auto. Its a Air tex pump which I thought were a good brand. It leaks gas bad out of the housing of the pump body. any one else received pad pump out of box? what brand should I look for?
	gearwrencher

Joe DeYoung Members Profile Send Private Message Find Members Posts Add to Buddy List Member Sponsor Member x 2 Joined: 20 July 2005 Location: Madison WI Status: Offline Points: 3362	Post Options Post Reply Quote Joe DeYoung Report Post Thanks(0) Quote Reply Posted: 13 June 2018 at 7:30pm
	I have a new Air Tex Fuel pump for my Fhead and the fuel pressure is way to high... started at 8 psi without a spacer and even with a spacer it's 6 psi. I added a second spacer and it's still 6 psi. Doesn't leak though.
	Joe DeYoung to many jeeps, parts, and accessories to list here, but apparently enough to keep me in trouble with my wife.

Mike S Members Profile Send Private Message Find Members Posts Add to Buddy List Member Joined: 20 May 2006 Location: West Coast Status: Offline Points: 2318	Post Options Post Reply Quote Mike S Report Post Thanks(0) Quote Reply Posted: 14 June 2018 at 10:10pm
	i think you could use the old standard glass bowl pump and get vacuum off the intake manifold.
	'47 CJ2A -- #114542 Warn FF D41 rear Lock-Right locker 11" drum brakes Dual master cylinder T90C Transmission 16 X 6 Jeep truck wheels Cooper STT Pro tires

Joe DeYoung Members Profile Send Private Message Find Members Posts Add to Buddy List Member Sponsor Member x 2 Joined: 20 July 2005 Location: Madison WI Status: Offline Points: 3362	Post Options Post Reply Quote Joe DeYoung Report Post Thanks(0) Quote Reply Posted: 15 June 2018 at 3:33am
	Vacuum off the manifold will not be constant when the throttle is opened which is why later engines used a vacuum/fuel pump combo.
	Joe DeYoung to many jeeps, parts, and accessories to list here, but apparently enough to keep me in trouble with my wife.

Jeff_Davis Members Profile Send Private Message Find Members Posts Add to Buddy List Member Joined: 15 July 2012 Location: Argentina & FL Status: Offline Points: 551	Post Options Post Reply Quote Jeff_Davis Report Post Thanks(0) Quote Reply Posted: 18 June 2018 at 3:19am
	I prefer to use OEM AC pumps, that are built and matched to the application. Willys AC pumps generally have pressures that are correct for use with Willys carbs, which saves the cost and complication of pressure regulators. Find a good core (watch out for wear on the cam lobe lever face!) and buy a quality rebuild kit with modern ethanol proof seals and diaphragms. I like the kits from Clasic Preservation Coalition, or Then and Now Automotive. Unlike carburetors, Combo pumps are a pretty straightforward bench re-build, that generally don't require special tools. If the rebuild intimidates you, send your core off to somebody like Scout Pilot (OldJeepCarbs.com), or Then and Now. This approach will beat a Chinese knockoff pump, every time. And make your restoration more accurate and reliable.
	Jeff 1947 Willys CJ2A Las Flores, Provinca de Buenos Aires, Argentina 1951 Willys M38 Flightline jeep (Southeast Florida) 1954 M-100 USMC Trailer 1954 FORD F-100 parts chaser, 292 V8 Y-Block