Author Topic: Best Fuel pump for an easy bleeder on an 8v71 (GMCP8M4905)  (Read 853 times)

Offline wobbleman

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What's the best Fuel pump for an easy bleeder on an 8v71? (GMCP8M4905)

I've been sitting for too long and have been  having  hell of a time getting it primed.

Also, another bus not has suggested using a garden sprayer plugged into the filter bleed plug.

Any thoughts?

Steve W

Bus in Florida, NY

Offline freds

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Re: Best Fuel pump for an easy bleeder on an 8v71 (GMCP8M4905)
« Reply #1 on: May 28, 2021, 02:10:32 PM »
Depends on where your fuel pump is. I have seen people dismount the engine pump and then use a drill to drive the pump to check flow.

What ever you do don't attempt to pressurize the fuel tank LOL!

Offline chessie4905

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Re: Best Fuel pump for an easy bleeder on an 8v71 (GMCP8M4905)
« Reply #2 on: May 28, 2021, 03:10:21 PM »
I bought a 24 volt Airtex inline fuel pump. Draws through primary filter and sends fuel to fuel pump. fuel pump sends it to secondary filter, then to engine. With engine normally running, fuel will flow through inline pump without it running. Just need an on off switch to run it when needed.
GMC h8h 649#028 (4905)
Pennsylvania-central

Offline dtcerrato

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Re: Best Fuel pump for an easy bleeder on an 8v71 (GMCP8M4905)
« Reply #3 on: May 28, 2021, 04:21:50 PM »
I bought a 24 volt Airtex inline fuel pump. Draws through primary filter and sends fuel to fuel pump. fuel pump sends it to secondary filter, then to engine. With engine normally running, fuel will flow through inline pump without it running. Just need an on off switch to run it when needed.

That's how our aux electric fuel pump is set up. It was a whopping $10.50 on Amazon, Chinese of coarse. Been four years issue free. 12VDC
Dan & Sandy
North Central Florida
PD4104-129 since 1979
Toads: 2009 Jeep GC Limited 4X4 5.7L Hemi
             2008 GMC Envoy SLT 4x4 4.2L IL Vortec

Offline wobbleman

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Re: Best Fuel pump for an easy bleeder on an 8v71 (GMCP8M4905)
« Reply #4 on: May 29, 2021, 05:26:00 AM »
Thanks, gang, one way or another I'll get it primed. Today!

 

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