Fuel pump eccentric problem
5th Gear Member
Joined: Jun 2005
Posts: 3,986
From: Michigan
RE: Fuel pump eccentric problem
ORIGINAL: quinchem
P- Do you have another suggestion for me? I'd rather not do the electric pump, but what are my options? Do you know if I can get away with shaving my eccentric? Is your timing chain single or double stran? If double, how did you get your cover on?
I'm not racing it so I think the constant pressure will suffice.
P- Do you have another suggestion for me? I'd rather not do the electric pump, but what are my options? Do you know if I can get away with shaving my eccentric? Is your timing chain single or double stran? If double, how did you get your cover on?
I'm not racing it so I think the constant pressure will suffice.
I guess Im not seeign what your problem is here. Is the eccentric ring too far forward? And it cant engage the fuel pump rod?
I thought that 289 blocks and 302 blocks where identical? Anyway, you could always try getting a timing cover off of a lets say '85 302 HO and get the matching pump......
And soaring, Im still not wrong vapor lock is caused by boiling fuel, which is usually in the lines or the carb. Not in the pump. Key word USUALLY.
And to answer your other question, todays cars run a electric pump because they can keep a constant fuel pressure and at a MUCH higher psi. Where as mechanical pumps need rpm increase to increase pressure and volume. Aside from that the pressure isnt consistant enough for fuel injection.
-P.
I ♥ Acer
Joined: Oct 2004
Posts: 17,565
From:
RE: Fuel pump eccentric problem
ORIGINAL: P Zero
My '79 stang had a single roller in it when I got it. Also from what I remember the late 70's 351's also had single roller with 2 different sets/styles of timing gears. Plastic coated timing gears and full metal gears.
I guess Im not seeign what your problem is here. Is the eccentric ring too far forward? And it cant engage the fuel pump rod?
I thought that 289 blocks and 302 blocks where identical? Anyway, you could always try getting a timing cover off of a lets say '85 302 HO and get the matching pump......
And soaring, Im still not wrong vapor lock is caused by boiling fuel, which is usually in the lines or the carb. Not in the pump. Key word USUALLY.
And to answer your other question, todays cars run a electric pump because they can keep a constant fuel pressure and at a MUCH higher psi. Where as mechanical pumps need rpm increase to increase pressure and volume. Aside from that the pressure isnt consistant enough for fuel injection.
-P.
ORIGINAL: quinchem
P- Do you have another suggestion for me? I'd rather not do the electric pump, but what are my options? Do you know if I can get away with shaving my eccentric? Is your timing chain single or double stran? If double, how did you get your cover on?
I'm not racing it so I think the constant pressure will suffice.
P- Do you have another suggestion for me? I'd rather not do the electric pump, but what are my options? Do you know if I can get away with shaving my eccentric? Is your timing chain single or double stran? If double, how did you get your cover on?
I'm not racing it so I think the constant pressure will suffice.
I guess Im not seeign what your problem is here. Is the eccentric ring too far forward? And it cant engage the fuel pump rod?
I thought that 289 blocks and 302 blocks where identical? Anyway, you could always try getting a timing cover off of a lets say '85 302 HO and get the matching pump......
And soaring, Im still not wrong vapor lock is caused by boiling fuel, which is usually in the lines or the carb. Not in the pump. Key word USUALLY.
And to answer your other question, todays cars run a electric pump because they can keep a constant fuel pressure and at a MUCH higher psi. Where as mechanical pumps need rpm increase to increase pressure and volume. Aside from that the pressure isnt consistant enough for fuel injection.
-P.
Thread Starter
1st Gear Member
Joined: Nov 2006
Posts: 85
RE: Fuel pump eccentric problem
P- my problem is the timing cover. when I tried to put on the timing cover it hits the eccentric and won't flush up with the block. Because the timing gear/chain is wider the eccentric sits farther out and hits the cover. I'm going to try shaving the eccentric...what do I have to lose? Then go with the electric pump if it won't work. Can I get a block off plate anywhere?? NAPA?
2nd Gear Member
Joined: Nov 2006
Posts: 356
From:
RE: Fuel pump eccentric problem
Hey Partner,
I had the same problem this past winter with my 5 bolt block. I fixed with a kit from summit. It has two piece and a couple dowel pins. Even though, I'm running an electric, I still added the concentric. Do a search on Summit.
Good Luck
I had the same problem this past winter with my 5 bolt block. I fixed with a kit from summit. It has two piece and a couple dowel pins. Even though, I'm running an electric, I still added the concentric. Do a search on Summit.
Good Luck
6th Gear Member
Joined: Jan 2007
Posts: 5,469
From: AR
RE: Fuel pump eccentric problem
ORIGINAL: kenash
Hey Partner,
I had the same problem this past winter with my 5 bolt block. I fixed with a kit from summit. It has two piece and a couple dowel pins. Even though, I'm running an electric, I still added the concentric. Do a search on Summit.
Good Luck
Hey Partner,
I had the same problem this past winter with my 5 bolt block. I fixed with a kit from summit. It has two piece and a couple dowel pins. Even though, I'm running an electric, I still added the concentric. Do a search on Summit.
Good Luck
By that point,,,,,,, I was pissed! [:@]
If I had it to do over, and I absolutly had to change that pin, I would take it to a machine shop....
6th Gear Member
Joined: Jan 2007
Posts: 5,469
From: AR
RE: Fuel pump eccentric problem
ORIGINAL: kenash
You Know, my Friend,
I think I would have "yanked"out the cam and started over, at that point. That's awful!
You Know, my Friend,
I think I would have "yanked"out the cam and started over, at that point. That's awful!
Sometimes what seems like the most simplistic tasksend upbiting me in the ***!
If that is as bad as it gets I will be ok,,,,
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