1933 Fuel Pump Rocker arm

D

Deuce399

Junior Member
Hi Guys -
Do any of you have any experince with broken Rocker arm in the fuel pump.
I replaced an old unknown brand fuel pump last year with a new metal bowl style pump from Mac’s.
A week ago my car would not start and I found that the rocker arm was broken at the pivot point. Is this just a one time bad product or is there a cause to the broken Rocker arm that I should be aware of?
/ Jan
 
If your push rod is to long then yes it will brake it ,there's a specified length just over 1/4 travel or two 10ths ? Ted
 
Hi Ted -
Thx., I'm aware of the lift and its with in the specs you mention, but the lenght of the pushrod I'm not sure about.
The engine is an early 33, 21 stud, I have meassured the pushrod lenght to 8-17/67" (21 cm).
What is the actual specs for the pushrod, do you know?
/Jan
 
It's not the vintage of the engine that matters, but rather the compatibility of the intake manifold, push rod, and fuel pump stand given that you are using a non-'33 fuel pump.
 
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