Fuel Pumps - Slight changes equal the same?

[RobertKB]

I bought a new fuel pump for my project car today. It looks the same and should bolt on fine. The only difference I notice is the arm that is moved by the camshaft to pump it. On the old pump there is a slight curve after the pump leaves the body. On the new pump there is a piece on the end (not sure what to call it but is most likely for wear purposes) and the arm remains straight after leaving the pump. Application of the new pump, in the parts book, indicates it is for the flathead six. I just want to make sure that the newer style arm will work and not damage the camshaft surface. I know what I think but want to see what you guys say before giving my opinion so there is no undue influence. I am assuming you can tell the old from the new in the pictures showing both.

Here are the pictures.

[randroid]

Robert,

From the looks of the two arms, if I am interpreting this correctly, the end result (where the actuating arm rides in the cam) should be the same. The old pump has a wider arm, thus necessitating the slight curve for pump body clearance, while the new pump's thinner arm makes it unnecessary. The difference in the width of the new arm is taken up by the added pad at the cam end and this might be a better design because it gives a slightly larger contact surface on the cam, which might create less wear on the cam lobe. If, on the other hand, that added pad on the new one proves too weak to take the pressure you're screwed, lol. So long as the throw of the arm on the new pump is the same as that of the old pump I wouldn't think you'd have anything to worry about.

-Randy

[ptwothree]

I've got the one on the right with the pad. It works but, I put a dab of jb weld on both ends of the pivot pin, to keep it in place (I hope). Anyone have a better fix?

[RobertKB]

I've got the one on the right with the pad. It works but, I put a dab of jb weld on both ends of the pivot pin, to keep it in place (I hope). Anyone have a better fix?

Good to know somoeone else out there has the same pump and it works. Thanks for posting.

I am going to do something with the pivot pin also. I was thinking just peen it the way we do with the keys in the king pins. Maybe some JB Weld as well.

[greg g]

Make a sheetmetal clip and slip it over the casting where the pin is.

[Don Coatney]

Do a forum search for (blueskies, fuel pump) as I believe he had a pin issue but I dont recall his fix.

[Young Ed]

I had one last summer too. We staked the housing. Couldnt the pin be replaced with either a longer pin with C clips on each end or a nut and bolt with a locking type nut?

[Rusty O'Toole]

I would peen the end, or put a few punch marks around the edge, or if it is flush put on a drop of braze.