All Small Six Mustang is eating fuel pumps

This relates to all small sixes
would one like this work? I just like seeing the fuel, it serves a purpose, you can see any water or dirt. I'm not familiar with the ford carb engines to know which one is right. I found a vintage volvo one and thought maybe I could replace the diaphram on my 66 amazon but wasn;t sure where Id get one of those. is it just a flat piece of rubber, neoprene maybe? I dont trust that old hunk of rubber so I never used it. but like this one in the link its new looking.

i think if I bought the below and it fit I;d be happy to have an older one and they look kind of cool. if its new old stock the rubber is still really old though.
have others replaced only the diaphram before?

looks like they were at one time replacable, I dont doubt the newer ones are unservicable riveted together maybe.
I made such a comment before and for that got banned 2 weeks , not clear why. anyway I didn't feel the above was anythign off topic or wrong really. and best to just let that situation go.. If Im stepping on anyones toes just let me know. not my intent to aggrevate anyone.

 
Thanks for sticking with me.

Tracked down some of the pumps I've gone through:

  • Carter M60387 (silver w/o filter)
  • TruGrade B1058MP ('65'/66 style w/ filter)
  • Delphi AMF0095 (not pictured)
  • The older one with bronze top I don't know the model
 

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philford said:
would one like this work? I just like seeing the fuel, it serves a purpose, you can see any water or dirt. I'm not familiar with the ford carb engines to know which one is right. I found a vintage volvo one and thought maybe I could replace the diaphram on my 66 amazon but wasn;t sure where Id get one of those. is it just a flat piece of rubber, neoprene maybe? I dont trust that old hunk of rubber so I never used it. but like this one in the link its new looking.

i think if I bought the below and it fit I;d be happy to have an older one and they look kind of cool. if its new old stock the rubber is still really old though.
have others replaced only the diaphram before?

looks like they were at one time replacable, I dont doubt the newer ones are unservicable riveted together maybe.
I made such a comment before and for that got banned 2 weeks , not clear why. anyway I didn't feel the above was anythign off topic or wrong really. and best to just let that situation go.. If Im stepping on anyones toes just let me know. not my intent to aggrevate anyone.

Click to expand...
I’d use that just cuz it’s cool looking 😎😎
 
The wear pattern on my original pump's arm is from two different camshafts. The old pump was re-used after an engine rebuild. The wear pad on the arm had a matte black finish on it that has been polished almost to a mirror surface where it has rubbed on the cam. The pics of yours that are clear enough to see that area looks rough as a cob.
 
when you are mounting it, could you turn the cam to the high point so that when you mount the pump , maybe you can see if the actutor is being driven too far? I assume one could change that if they added a gasketor or a thicker one.

if that arm had a bit shorter "swing" then maybe that would decrease fuel flow, it lowers the pumps displacement, but maybe there is a distance that provides enough fuel. if the stroke can be shortened any it stands to reason it may be less stressful on that pivot arm and spring.
surely there is a tolerance if you have a ford manual it may help.

the fact its breaking springs could be low quality parts I dont see how you'd over stress the compression sprng. Is it getting coil bound?
deffective run of spring steel maybe?

Maybe its wrecking the diaphram by overextending it's expected range of "give"

what you could do , since you cant; see in there with it mounted.
use a vernier calliper,
- measure the high point of the cam to the block surface,
- measure the actuator to pump distance with it compressed to the max.
subtract to get the difference.

look at the diffrence and make sure it can compress by that ampount. is the coil being bound up when pressed in that distance?

If the problem is the surface, sure it could pick up and gall and wear, that's not good obviously, but why would that damage the spring?
 
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