Fuel pump
- Thread starter 37 Cab
- Start date
37 Cab
Well-known member
Thank you. The reason I ask is because that is what I have on my car now. It has never worked well enough to supply fuel without the electric pump running. It will run the engine but it starves at higher speeds. I put a rebuild kit in it without noticeable change. The electric pump I am running is a carter inline from Macs. (See link) Could be a problem with the push rod I suppose. Anyone know the length it should be on my car? I will check length and lift next.
https://www.macsautoparts.com/ford_...and-with-in-line-filter-ford-and-mercury.html
https://www.macsautoparts.com/ford_...and-with-in-line-filter-ford-and-mercury.html
deuce lover
Well-known member
Exactly what Terry says and in 37 Cab's case he can use the same pushrod.
deuce lover
Well-known member
deuce lover
Well-known member
deuce_roadster
Well-known member
The cam lobe the rod rides on may be worn if the rod itself is the correct length. I have seen a KRW tool that measures the length of travel of the rod. A dial indicator could do the same thing.
Kube
Super Moderator
37cab, If by chance the cam lobe is worn, a simple and rather lasting repair is to place a small piece of leather (stamp it out of an old belt) in the cup of the pump.
I might suggest you send your pump to CharlieNY (here on the Barn) for a proper build. There's a lot more to doing it properly than throwing a kit in it.
Other things to check for are vacuum leaks in the fuel line(s). Check the flex hose to be certain it is not sucking air.
Also, this electric pump you have... is it a pass through type? A simple test would be to bypass the electric pump for a test drive.
If memory serves me well, the lift on the lobe is .256".
The rod should be 7.866" +0 / -.006".
I might suggest you send your pump to CharlieNY (here on the Barn) for a proper build. There's a lot more to doing it properly than throwing a kit in it.
Other things to check for are vacuum leaks in the fuel line(s). Check the flex hose to be certain it is not sucking air.
Also, this electric pump you have... is it a pass through type? A simple test would be to bypass the electric pump for a test drive.
If memory serves me well, the lift on the lobe is .256".
The rod should be 7.866" +0 / -.006".
Tinker
Well-known member
I do. I like the glass bowl pumps. It catches debris. Not sure that the fuel pump rod length makes a difference with the glass early pump less you change the intake. or you have a 8ba or pump.
A old wise tale was to use a poker/player card to make a pump gasket to increase pressure, as it was thinner. Might help....
My thinking is if the cam lobe is wore, it's not good. Does that happen?
Thought the rod throw was around a 1/4" +/-. As posted.
.
A old wise tale was to use a poker/player card to make a pump gasket to increase pressure, as it was thinner. Might help....
My thinking is if the cam lobe is wore, it's not good. Does that happen?
Thought the rod throw was around a 1/4" +/-. As posted.
.
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tubman
Well-known member
I once had a problem with the glass bowl type pump where there was a slight leak around the glass bowl. It was very difficult to find, but when I did, I solved it by lapping the mating surface of the glass bowl using wet-r-dry paper on my surface plate and re-installing it using a new CORK gasket. It seems counter-intuitive, but the cork gaskets seem to seal better than the neoprene gaskets usually supplied with the kits.
Kube
Super Moderator
I have only experienced a couple of cars wherein the lobe was worn enough to cause similar issues to what the original post had described. So yes, it does happen and no, it's not good.