PDA

View Full Version : Fuel Pump



wolfie
11-18-2009, 03:11 PM
Hi, Does the fuel pump for my 64 V-8 drive directly from the cam or is there a connector (rod,etc..) that drives it? I am eliminating the temporary electric setup I had installed earlier. The mechanical one would pump a little fuel while cranking the engine over but would stop pumping when the engine fired up. It seemed to have no pressure on the outlet and very little vacuum on the inlet either on the truck or testing it by hand off the truck. I pulled the pump,took it apart far enough to look at the diaphram and did get a small bit of trash out of it. The diaphram seems good (no cracks or splits,flexible) Put it all back together and now I have NO fuel. The pump still seems very weak to me but there seemed to be no resistance when I reinstalled the pump,like it was not contacting anything. Did I let something drop? It is POSSIBLE the engine was turned over without the pump installed as the truck was moved in my absence. I did not check the timing marks when I was putting it back together so I really dont know. Thanks,Steve

http://i287.photobucket.com/albums/ll160/wolfie_53/T-cabhoodsprings015.jpg

wolfie
11-18-2009, 04:37 PM
quote:Originally posted by hotwheels63r2

The pump is driven by the fuel pump eccentric, a bolt on part of the camshaft. Normally, you have to 'bump' the engine around so it will install easy.

MIKE




Thanks, Obviously I cant see that end but I can move the pump in any direction freely without contacting anything. Since the eccentric bolts on I am assuming there is nothing that would be damaged or lost if the engine had been turned. How probable/improbable would it be for those bolts to loosen and cause an intermitten problem? The truck DID run on the mechanical setup for 100 miles or so when I first eliminated the electric setup. It also had fuel delivery issues during that time that were not tempature related. Thanks,Steve

http://i287.photobucket.com/albums/ll160/wolfie_53/T-cabhoodsprings015.jpg

jlmccuan
11-18-2009, 06:26 PM
Aren't there check valves in the pump as well? Even with a good diaphram, without functioning check valves the fuel is just sucked in and pushed back out to the point of least resistance.

Jim
Often in error, never in doubt
http://i186.photobucket.com/albums/x98/jlmccuan/Avanti/AvantiSignature.jpghttp://i186.photobucket.com/albums/x98/jlmccuan/Avanti/DSCF4389.jpghttp://i186.photobucket.com/albums/x98/jlmccuan/Avanti/Logo/RabidSnailSignature.jpg
____1966 Avanti II RQA 0088_______________1963 Avanti R2 63R3152____________Rabid Snail Racing

wolfie
11-18-2009, 07:17 PM
quote:Originally posted by jlmccuan

Aren't there check valves in the pump as well? Even with a good diaphram, without functioning check valves the fuel is just sucked in and pushed back out to the point of least resistance.

Jim
Often in error, never in doubt
http://i186.photobucket.com/albums/x98/jlmccuan/Avanti/AvantiSignature.jpghttp://i186.photobucket.com/albums/x98/jlmccuan/Avanti/DSCF4389.jpghttp://i186.photobucket.com/albums/x98/jlmccuan/Avanti/Logo/RabidSnailSignature.jpg
____1966 Avanti II RQA 0088_______________1963 Avanti R2 63R3152____________Rabid Snail Racing





That sounds exactly like my problem. My pump almost seems to work backwards at times when I have it off the truck. I am assuming these are in the top part of the pump? I will try getting a little deeper into it and see what I find. I am sure it doesnt work now so I cant hurt it. I feel more comfortable now knowing that nothing is damaged. I can just bypass this again and reconnect the electric. I was really worried that I had let something fall into the engine and moreso where it might have gone. Thanks, Steve

http://i287.photobucket.com/albums/ll160/wolfie_53/T-cabhoodsprings015.jpg

wolfie
11-18-2009, 07:46 PM
Also, I will be ordering another fuel pump anyway, Are the ones currently offered by SI holding up well? Thanks, Steve

http://i287.photobucket.com/albums/ll160/wolfie_53/T-cabhoodsprings015.jpg

StudeRich
11-18-2009, 08:14 PM
quote:Originally posted by wolfie

Also, I will be ordering another fuel pump anyway, Are the ones currently offered by SI holding up well? Thanks, Steve

Unfortunately NO! They are the Airtex type we have all be yammering about being bigtime [u]OIL </u>leakers to the point that the actuating lever arm pivot PIN works it's way out of the pump. [xx(]

If you buy the expensive Real Carter Avanti R1 pump and use a pressure regulator you would have a lifetime (you or the vehicle whichever comes 1st.!) fuel pump! :D

Option two: if you search the dozens of Carter fuel pump posts, you will see that if you can find a original Carter Std. 259/289 pump either tin filter bowl or glass bowl type (all have built-in filters), the kits to rebuild these ARE available at Studebaker Vendors at studebakervendors.com

If that pump you have has a filter bowl on the bottom, save it. If not, trash it!

StudeRich

mbstude
11-18-2009, 08:18 PM
A small block Mopar pump can also be used by heating and bending the actuating rod.

http://www.studebaker-info.org/tech/fuelpump/R2modfp/R2modFP.html



Matthew Burnette
Hazlehurst, GA

wolfie
11-18-2009, 08:53 PM
Thanks, I knew some of these pumps were giving problems but wasnt sure what SI was selling. Mine was installed by the PO so I dont know where it was sourced from but it has no internal filter (that I have seen). I installed an inline between the tank and the pump but I am sure I had already done the damage to it beforehand with the electric inline behind it before I cleaned the tank. I will look into the mopar setup. I can also get an original core locally and actually have one that leaks badly from a 63 259 I can rebuild and use for a while. Thanks, Steve

http://i287.photobucket.com/albums/ll160/wolfie_53/T-cabhoodsprings015.jpg

Tom B
11-18-2009, 10:13 PM
Rebuild an old Carter. It will be a New Carter. You get new seals, new valves and new diaphragm. Unless the threads are toast your pump will last years.

[img=left]http://www.alink.com/personal/tbredehoft/Avatar1.jpg[/img=left]
Tom Bredehoft
'53 Commander Coupe (since 1959)
'55 President (6H Y6) State Sedan
....On the road, again....
'05 Legacy Ltd Wagon
All Indiana built cars

wolfie
11-18-2009, 10:47 PM
quote:Originally posted by Tom B

Rebuild an old Carter. It will be a New Carter. You get new seals, new valves and new diaphragm. Unless the threads are toast your pump will last years.

[img=left]http://www.alink.com/personal/tbredehoft/Avatar1.jpg[/img=left]
Tom Bredehoft
'53 Commander Coupe (since 1959)
'55 President (6H Y6) State Sedan
....On the road, again....
'05 Legacy Ltd Wagon
All Indiana built cars





Thanks, Ive got my official shopper searching for a kit now. Is there a "best" kit or any I should stay away from? The electric system is hooked back up for now so it at least drives again. Thanks, Steve

http://i287.photobucket.com/albums/ll160/wolfie_53/T-cabhoodsprings015.jpg

Tom B
11-18-2009, 10:56 PM
My guess, any modern kit will suffice. Modern meaning a diaphragm that will resist alcohol.

[img=left]http://www.alink.com/personal/tbredehoft/Avatar1.jpg[/img=left]
Tom Bredehoft
'53 Commander Coupe (since 1959)
'55 President (6H Y6) State Sedan
....On the road, again....
'05 Legacy Ltd Wagon
All Indiana built cars

studebakerkid
11-19-2009, 04:17 AM
A good photo of an airtex type pump would be an asset to new Studebaker drivers know what to avoid. Anyone got one.

If you car is ugly then it better be fast.....

65 2dr sedan
64 2dr sedan (Pinkie)
61 V8 Tcab
61 Tcab 20R powered
55 Commander Wagon
54 Champion Wagon
46 Gibson Model A
50 JD MC

jlmccuan
11-19-2009, 07:46 AM
From Bob's Stude site. Pics of the Airtex 4227 in question.
http://studebaker-info.org/tech/fuelpump/oilleak/fuelpump8.html
Article includes a possible fix if you're so inclined.

Jim
Often in error, never in doubt
http://i186.photobucket.com/albums/x98/jlmccuan/Avanti/AvantiSignature.jpghttp://i186.photobucket.com/albums/x98/jlmccuan/Avanti/DSCF4389.jpghttp://i186.photobucket.com/albums/x98/jlmccuan/Avanti/Logo/RabidSnailSignature.jpg
____1966 Avanti II RQA 0088_______________1963 Avanti R2 63R3152____________Rabid Snail Racing