Big Block Fuel Pump Replacement

Technical Question and Answer - On topic to 71-74 Plymouth B-bodies only.

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71_bronze_gtx
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Big Block Fuel Pump Replacement

Post by 71_bronze_gtx » Tue Jun 11, 2013 8:37 am

To anyone who has done this job - is this better tackled from the top side or underneath? Or both?

Looks like if I remove the alternator it can be "reached" from above.

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road chicken
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Re: Big Block Fuel Pump Replacement

Post by road chicken » Tue Jun 11, 2013 9:27 am

you got it, pull the Alt and everything is right there. Maybe clear the plug wires and the #2 plug, but that probably isn't needed
4th generation B bodys- there is no substitute.
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71_bronze_gtx
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Re: Big Block Fuel Pump Replacement

Post by 71_bronze_gtx » Wed Jun 12, 2013 9:22 am

Thanx.

Someone told me to wipe a hefty wad of grease onto the pushrod so it will stay in place while getting the pump and gasket in place. Sound about right?

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471Magnum
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Re: Big Block Fuel Pump Replacement

Post by 471Magnum » Wed Jun 12, 2013 12:49 pm

71_bronze_gtx wrote:Thanx.

Someone told me to wipe a hefty wad of grease onto the pushrod so it will stay in place while getting the pump and gasket in place. Sound about right?
Yep.

Piece of cake with the alternator removed.
-Jim
"I can fix it... my old man is a television repairman... he's got the ULTIMATE set of tools... I can fix it."
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71_bronze_gtx
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Posts: 268
Joined: Tue Jan 22, 2013 1:32 pm
My Cars: 71 GTX
72 cuda repli-mod
Location: S. E. Michigan

Re: Big Block Fuel Pump Replacement

Post by 71_bronze_gtx » Thu Jun 13, 2013 12:20 pm

Excellent - thanks.

Previous owner installed a Carter electric pump which is making 9 psi at the carbs inlet. A little high, but I don't think its causing problems. Fuel bowl levels are perfect when sitting still. That said, the pump is loud like a compressor and it has to go.

Oddly enough, included with the extra goodies when I bought the car were two mechanical pumps - a mopar pump which doesn't look "correct" and a Holley high volume pump.

I got a high performance Carter pump from Roseville Moparts, which they say is correct.

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