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Old 03-12-2012, 06:41 PM   #1 (permalink)
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Installing 2nd gen piston pump, do i need to add a spacer?

I'm installing a stock 2nd gen piston lift pump i got from geno's garage. Do I need to add a spacer to that pump when installing it on a first gen?
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Old 03-12-2012, 07:01 PM   #2 (permalink)
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IF it didn't come with one, then probably.haha You can buy the spacer, when I got my LPPP, I bought it in a kit and it came with everything. But, I believe the spacer is like 1/4in. or something close.
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Old 03-12-2012, 07:23 PM   #3 (permalink)
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Yes im running a second gen lift pump i set up everything myself. You will need a spacer and you will need to make/bend one line and also regulated it, because they can put out 50+psi and you dont want anymore then about 18psi on a first gen but i would regulate at least a bit lower.
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Old 03-12-2012, 08:12 PM   #4 (permalink)
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Yeah I've got the regulator mounted up. Just finished trimming the lifter cover insulation. Now gotta drop the tank and install the larger fuel lines. Gonna have to round up a spacer tomorrow now.
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Old 03-12-2012, 08:32 PM   #5 (permalink)
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Also can anyone tell me for sure how thick the spacer needs to be??

Thanx.
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Old 03-12-2012, 09:31 PM   #6 (permalink)
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Upon further research the spacer is 1/4" thick and is cummins part # 3914284. Supposed to run about $12us. If I can't find one up here I might just plasma cut 2 sbc fp adaptors and throw a gasket between them.
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Old 03-12-2012, 10:57 PM   #7 (permalink)
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1/4" thought i said that before sorry. Also i didn't run larger lines mines doing great just fine and fp never drops. That's up to you though, good luck if you got any other questions for me just ask.
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Old 03-13-2012, 12:46 AM   #8 (permalink)
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I totally read past that sorry. Ive got all the stuff left over from past racecars to build the fuel lines full 3/8" feed and return plus a 3/8" draw straw. Figured I'd put it to use on this truck.
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Old 03-13-2012, 01:24 AM   #9 (permalink)
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Quote:
Originally Posted by Shakes View Post
I totally read past that sorry. Ive got all the stuff left over from past racecars to build the fuel lines full 3/8" feed and return plus a 3/8" draw straw. Figured I'd put it to use on this truck.
Ya can't hurt i would of if i had extra material laying around but i didn't and other people have been fine and this is more then enough, im only running about 7psi because i bought a cheap regulator but its enough but ill upgrade later and the fuel lines as well, still though i don't think im loosing power.
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