Go Back   The Ford Barn > General Discussion > Early V8 (1932-53)

Sponsored Links (Register now to hide all advertisements)

Reply
 
Thread Tools Display Modes
Old 02-16-2020, 08:11 AM   #1
37 Cab
Senior Member
 
37 Cab's Avatar
 
Join Date: Dec 2014
Location: Miami Oklahoma
Posts: 500
Default Fuel pump

Can I use a later fuel pump with the glass bowl on my 37 21 stud motor? Do I need to change the stand or intake for it to work or can I just bolt it on?
__________________
Tommy
37 Cab is offline   Reply With Quote
Old 02-16-2020, 10:22 AM   #2
Terry,OH
Senior Member
 
Terry,OH's Avatar
 
Join Date: May 2010
Posts: 3,481
Default Re: Fuel pump

Usually a bolt on, be aware there are two of the later pumps with the glass bowl and the difference is the thread of the input and output the very late pumps have NPT thread.
Terry,OH is offline   Reply With Quote
Sponsored Links (Register now to hide all advertisements)
Old 02-16-2020, 11:36 AM   #3
51woodie
Senior Member
 
51woodie's Avatar
 
Join Date: Apr 2018
Location: Chelmsford, ON Canada
Posts: 228
Default Re: Fuel pump

Also, check for the correct length of the pushrod. I know I have read somewhere that there are different lengths, depending on year, pump, tower etc. Someone more knowledgeable that I may chip in here.
51woodie is offline   Reply With Quote
Old 02-16-2020, 11:49 AM   #4
37 Cab
Senior Member
 
37 Cab's Avatar
 
Join Date: Dec 2014
Location: Miami Oklahoma
Posts: 500
Default Re: Fuel pump

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_m...d-mercury.html
__________________
Tommy
37 Cab is offline   Reply With Quote
Old 02-16-2020, 11:51 AM   #5
deuce lover
Senior Member
 
deuce lover's Avatar
 
Join Date: May 2010
Location: Southern France
Posts: 3,265
Default Re: Fuel pump

Exactly what Terry says and in 37 Cab's case he can use the same pushrod.
deuce lover is online now   Reply With Quote
Old 02-16-2020, 11:57 AM   #6
deuce lover
Senior Member
 
deuce lover's Avatar
 
Join Date: May 2010
Location: Southern France
Posts: 3,265
Default Re: Fuel pump

Quote:
Originally Posted by 37 Cab View Post
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_m...d-mercury.html

What intake are you running?
deuce lover is online now   Reply With Quote
Old 02-16-2020, 12:14 PM   #7
37 Cab
Senior Member
 
37 Cab's Avatar
 
Join Date: Dec 2014
Location: Miami Oklahoma
Posts: 500
Default Re: Fuel pump

It is the stock aluminum intake for my 37.
__________________
Tommy
37 Cab is offline   Reply With Quote
Old 02-16-2020, 12:24 PM   #8
deuce lover
Senior Member
 
deuce lover's Avatar
 
Join Date: May 2010
Location: Southern France
Posts: 3,265
Default Re: Fuel pump

Quote:
Originally Posted by 37 Cab View Post
It is the stock aluminum intake for my 37.

Pushrod should be 7.87" long.
deuce lover is online now   Reply With Quote
Old 02-16-2020, 01:11 PM   #9
deuce_roadster
Senior Member
 
deuce_roadster's Avatar
 
Join Date: Oct 2011
Location: Shelton, WA
Posts: 2,671
Default Re: Fuel pump

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.
deuce_roadster is offline   Reply With Quote
Old 02-16-2020, 01:29 PM   #10
37 Cab
Senior Member
 
37 Cab's Avatar
 
Join Date: Dec 2014
Location: Miami Oklahoma
Posts: 500
Default Re: Fuel pump

That is my fear.. I have a dial indicator. Thanks Deuce!
__________________
Tommy
37 Cab is offline   Reply With Quote
Old 02-16-2020, 06:29 PM   #11
flatjack9
Senior Member
 
flatjack9's Avatar
 
Join Date: May 2010
Location: Oshkosh, Wi
Posts: 3,687
Default Re: Fuel pump

Lift on the lobe is around .20 - .25.
flatjack9 is offline   Reply With Quote
Old 02-16-2020, 08:18 PM   #12
Kube
Senior Member
 
Kube's Avatar
 
Join Date: May 2010
Location: Wisconsin, USA
Posts: 6,029
Default Re: Fuel pump

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 can explain it for you. However, I can't understand it for you".
Kube is offline   Reply With Quote
Old 02-16-2020, 11:35 PM   #13
Tinker
Senior Member
 
Tinker's Avatar
 
Join Date: May 2010
Location: MN/FL
Posts: 5,668
Default Re: Fuel pump

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.


.

Last edited by Tinker; 02-16-2020 at 11:49 PM.
Tinker is offline   Reply With Quote
Old 02-17-2020, 05:52 AM   #14
tubman
Senior Member
 
tubman's Avatar
 
Join Date: Dec 2013
Location: Minnesota, Florida Keys
Posts: 6,313
Default Re: Fuel pump

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.
tubman is offline   Reply With Quote
Old 02-17-2020, 08:56 AM   #15
Kube
Senior Member
 
Kube's Avatar
 
Join Date: May 2010
Location: Wisconsin, USA
Posts: 6,029
Default Re: Fuel pump

Quote:
Originally Posted by Tinker View Post
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.


.
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.
__________________
"I can explain it for you. However, I can't understand it for you".
Kube is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Sponsored Links (Register now to hide all advertisements)


All times are GMT -5. The time now is 11:45 AM.