I am stuck on this issue. I would like to see if you all have some ideas? I have a 1956 Ford F100 that is all original except it has a 292 not the 272 originally installed. I am trying to get a mechanical fuel pump to work on it. I have gone thru two of them so far in 30 days.When I bought the truck, it had an old school electric fuel pump that was junk. The water pump was bad so in the process of changing that I broke a bolt, so off came the timing cover. I then found out why electric fuel pump, no eccentric pump at all, nothing keeping the timing gear from moving on the cam shaft. I found the eccentric on eBay and the seller stated it was NOS for 55 through 59 Ford 272, 292 and 312. I installed that and well this is where I am at….Block - B9AE 6015-FTiming cover – EBV 6059-G, casting date 67S: (I know the date doesn’t make sense)
Eccentric – B5A 6287-A
The pumps tried were Airtex 6523 max 6 psi, Airtex 3450 min 6 psi. The Airtex 3450 lasted 3 days and the 6523 lasted 20 min…(The carb is a Edelbrock performer requiring 6 psi max fuel pressure). Now knowing the above information, is there a problem with the alignment of these parts that will kill a pump or is it the Overseas topnotch manufacturing that is the problem? Or am I using the wrong pump? I have electric wipers. I would appreciate anyone’s ideas or direction.

 

How are they failing, ruptured diaphragms or mechanical problems?

 

The Airtex 6523 has a two piece arm that pivets at the pump mounting flange. The second arm to the diaphragm broke at the piviot point. The Airtex 3450 started ticking very loud at 5min under idle and the fuel pressure dropped from 8 psi to 2 psi in 15 min. its a sealed unit so checking the diaphragm is not possible.
Dennis

 

Here's what the Parts CD shows, it may not be the latest numbers tho. Curious that it doesn't list anything for the 272?

 

Ross, I appreciate the response, I find it interesting that the part number listed for the 54/55 239/256 eccentric is C1AE which is C 1960, 1 is 1961, A is all fords and E is engine . Mine is a B5A, B 1950, 5 is 1955 and A is all fords. So I am looking to see if the cam position is the same on the 1956 272 and 1959 292 blocks? if they are, then the diameter of the eccentric may be the issue. The position of the opening and mounting for the fuel pump should be the same on all of the truck/t-bird timing covers if the casting of EBV 6059-G are the same only the casting dates would be important if you were restoring a 100 % truck. Ford would only change the casting if there was a change in engineering and then there would be a change in the letter at the end of the part number. Otherwise the next change in the casting part number would be the decade it was manufactured.
The witness marks on the two fuel pump arms were exactly the same as well as the witness marks on the eccentric was in the middle so as far as the pumps hitting in the right spot we are ok.

Dennis

 

my books list the B5A-6287-A as the correct pump eccentric. 1" Approx off set I.D.

Maybe it's time to try a different manufacturer of fuel pumps.

 

matthewq4b, thanks for the info, when you say the eccentric is correct, do you mean for the years of 55/59 292 engines?

As far as the pumps, I run into the same problem looking around. I cant use the 56 ford f100 because most of the manufactures list one for the 6 cylinder with vacuum wipers or nothing at all. I look for the 59 292 and you get a mess of pumps. I have searched this site for guys that have similar situations going back as far as 2000 but no perfect outcome. I know its a question that all ways comes up about fuel pumps but I don't want to go electric, I am old school. I will use an electric if I later choose to change the frame and drive train with a Coyote Motor.

So I guess the 64 million dollar question for anyone is, what fuel pump should I be using for this application?...
1959 292 Block B9AE 6015-F
1956 Truck timing cover EBV 6059-G
1955+ Eccentric B5A-6287-A
1957 four barrel intake ECZ-9425-B with a Edelbrock carb, max 6 psi fuel pressure.
Stock 1956 fuel tank and lines from behind the seat

Thanks to all, Dennis

 

Ford numbers cast into parts are engineering numbers and are for the first year used. So your engine is 59 or newer. See if 60's 272's used a different pump.

 

 

Yup this seems to be the case. It appears that 54 used a unique fuel pump. I would suspect that the front cover was unique.

From 56 to 64 it looks like that all used the same style fuel pump.

I would maybe try a different brand of fuel pump.

After cruising Rock Auto none of the Airtex fuel pumps are listed for 56 but the Delphi and Spectra ones are and are the same Pt No. till 1964.


So it may be worth while trying a different brand of pump.