Ok guys here it is...
I asked this question on another forum but I'm still not having any luck.
I have a flathead that will run as long as I squirt gas into the carb. I bought a new pump, removed the guts and put them into the original pump. To keep it original. I'm considering putting them back into the new one to mount. Any ideas? Thanks in advance. Ralph

 

Any Ideas? Yeah, run along side and keep pouring gas down the carb!

Oh I'm just killing me tonight.

OK, we seem to have this discussion about every two weeks. Lets start at the begining. If any of these things fail to work correctly fix it before going on to the next:

BE SURE TO HAVE A FIRE EXTINGUISHER HANDY ANYTIME
YOU HAVE YOUR FUEL SYSTEM OPEN
OR ARE WORKING WITH GASOLINE!!!


1. Make sure the gas tank cap is vented and is allowing air to replace the gas in the tank;

2) Drain the tank, purge it with some fresh gas, then put at least a gallon of NEW gas in the tank;

3) Blow back into the tank using your fuel line to ensure there is no bloackage in the tank (listen for the bubbles and let gas flow out of the fuel line into a jar;

4) Replace any gas filters you might have - both inline and on the fuel pump;

5) Perform a fuel pump vacuum or pressure test IAW the shop manual to ensure that the diaphragm is still ok, the pump shaft is in one piece and in the right location, and it pumps gas - priming helps;

6) Ensure there is no blockage in the fuel lines between the pump and the carb - remove the fuel line from the carb and direct it into a jar. BRIEFLY turn over the starter and watch for gas flowing from the pump. Hook up the fuel line;

7) Check your carburetor float to ensure your needle valve is not stuck;

8) Turn over the starter long enough to see if the carburetor bowl fills with gas (fuel pump bowl should already be full at this point if the pump is working correctly)

9) While looking down the carburetor throat, open the throttle to full open and see if the accelerator pump is shooting gas down the throat;

10) Try again to start the car using the accelerator pump to feed it gas. If the truck runs without pumping the throttle, your good. If it doesn't, you need to clean, rebuild, or replace the carb.

Good Luck!

J!

 

if fuel pump has sediment bowl on pump, make sure gasket between glass bowl and pump is not dry rotted and cracked. fuel pump pushrod could be worn, cam lobe could be worn. completely remove inline filter at carb, if present. these can become clogged like a stone! and listen to julie!!!!!!!!!!!!!

 

Hey guys:
Thanks for the info: Julie you are way too funny. Ha. I found the problem. Inside the top of the pump are two dime sized diaphragms. One has to be tuned in and the other out. I don't know if it makes a difference but I turned the one the right facing up and the one on the left faces down. I put it back together and whamo. It pumps and runs good. I wish I could say I figured this out on my own but I read 2005 thread on the Ford Forum. PS. thanks again. Ralph

 

WOW isn't that interesting! It's been a long time since I've rebuilt a flathead fuel pump.

But, I'm glad you got it fixed.

It's funny but if you hang out here long enough, you seem to notice that the same problems keep popping up. Here's the top 5 that come around about twice a month: Fuel delivery (pump, tank, venting, plugged carb); Turn signals and running lights; The "Mystery Part"/part numbers/serial numbers; Stock brakes and master cylinders; and Instruments (gas guage/sending units/temp gauges etc).

This place has a tremendous wealth of technical information stored from people who have had and fixed these problems before. The glory of these trucks is that they don't carry too much equipment so the weak links seem to recurre. If you can't get the right fix currently, then if you have the patience to use the search and dig a bit, you'll find an answer.

What's next on your truck?

J!

 

J!
Yes, I'm so lucky to be involved with this Forum.....I am impressed with the knowledge of the group. Wish I had learned more from my Dad. But at 15 yrs old, I knew everything. I miss him. The next phase of the truck will be pulling a good running 6 cyl, 226, and putting in the flathead. I'm considering keeping the original tranny and rear end. May regret that later. I'm looking to sell the 226 if you know anyone who is interested. It runs like a sewing machine. Thanks again for the info. Ralph