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Anyone have a fuel pump push rod break in half?

sschaefer3

New member
212
3
0
Location
Tempe, AZ
I did, looks like a cast part and it broke right in the middle. I'll post photos in the AM but is seems weird that a shaft in a bore would literally break in half. 80K miles. GM still had new ones available.
 

Drock

New member
1,020
12
0
Location
Eatonton GA
The only thing I can think of is some sort of vibration would cause that. Maybe some slop between the pump arm and the shaft? Or slop in the shaft bore? And ,or ah bent shaft, I've seen that happen during improper installation of the pump. Don't ask how I know that.:???:
 

llong66

New member
453
2
0
Location
kokomo, In
sschaefer3, during my rebuild, I have switched to an electric pump, if you are wanting to stay original, I will send you my old pump rod for the price of the ride, Im sure I still have it. PM me if your interested.

Greg
 

sschaefer3

New member
212
3
0
Location
Tempe, AZ
We bought a new rod from GM it was only $25.08 retail, which is what the shop charged me. GM 14050425

My truck is all fixed with a new AC Delco pump and new rod, but Thanks!
 

sierrajcharlie

New member
144
0
0
Location
Farmersburg, Iowa
I had a 1984 K10 with a 305 in it and I broke mechanical fuel pumps left and right. I finally put in a electric pump but had problems with that, I thought. That was later tracked down to a distributor issue. The issue with the mechanical pumps was that the push rod itself was the problem. That was found out when it broke in half. Apparently the failing rod had been beating the pump arms to death. Replaced the rod and never had another issue with the pump.
 
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