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Re: [GMCnet] Fuel Pump Poll [message #239476 is a reply to message #239419] Mon, 10 February 2014 20:21 Go to previous message
Bob de Kruyff   United States
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma:
Senior Member
""When we crossed Canada on the GMC Cascaders Rolling Rally, we had failures
on three different coaches with three mechanical fuel pumps, Two were 455s,
and one was 403. Two quit pumping, and one broke the third fuel fitting or
return line fitting where it exits the pump body. Fuel leaks quite badly
when that happens. We quickly exhausted our onboard supply of spare pumps,
and were forced to purchase new ones in Jasper, Canada. We bought 2
mechanical and two Carter 4070 electric pumps. Rang up over $600.00 US
Dollars when all was paid for. But, we fixed all three and continued our
journey without towing bills. NAPA is alive and well in Canada. The
mechanical pumps are a wrestling match in the motor home. Try it in
Pocahontus Campground in the pouring rain with roving bears. Gives a whole
new meaning to the term emergency roadside repair. (Grin) Would not trade
the memories for anything. Part of owning a 40 year old vehicle that gets
used hard and put away wet.
Jim Hupy
Salem, OR
78 GMC Royale 403"'

We'll probsbly never settle this argument since we all have our own stories. Ever since I added a Carter backup pump I have failed 2 of them. I have never failed a mechanical pump although they are so inexpensive and so easy to replace (if you remove the fender liner), that I renew them every 10 years or so. I plan on doing that again soon. I consider my mechanical pump as the main pump and it serves me well 95% of the time. If I do get a hint of vapor lock, I activate the carter momentarily, and if it fails, I'll put up with a few sags and sputters but will not be stuck on the side of the road.


Bob de Kruyff
78 Eleganza
Chandler, AZ
 
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