Replacing Fuel Pump
Thread Starter
Racer
Joined: Apr 2013
Posts: 293
Likes: 0
Replacing Fuel Pump
So.. it's been a long while since I posted anything. Rarely drive the 65, but hoping things change and I get to drive it more often. The fuel pump has had a leak.. not sure where from but the bottom has fuel on it and it streams at times on start up.
So I'm gonna replace it but had a couple of quick questions.. first off, is there any easy way to control the fuel in the lines rather than have it go all over? And I've read the pushrod can be a PITA at times. Is there any trick to keeping this a relatively easy job?
So I'm gonna replace it but had a couple of quick questions.. first off, is there any easy way to control the fuel in the lines rather than have it go all over? And I've read the pushrod can be a PITA at times. Is there any trick to keeping this a relatively easy job?
Team Owner
Joined: Aug 2007
Posts: 58,061
Likes: 7,145
Army
There is a ton of info on here about dealing with the push rod - including removing a front bolt and replacing it with a longer one temporarily to jam the push rod up; some use heavy grease to hold the rod up. Many put the engine at TDC to make things easier.
You can clamp the rubber line that connects the gas tank to the 'hard' fuel line at the PS rear of the car using these; which is what I use. You don't have to clamp down on the line like there's no tomorrow -- just enough to pinch off the gas flow.
You can clamp the rubber line that connects the gas tank to the 'hard' fuel line at the PS rear of the car using these; which is what I use. You don't have to clamp down on the line like there's no tomorrow -- just enough to pinch off the gas flow.
Le Mans Master
Joined: Nov 2015
Posts: 7,444
Likes: 2,625
From: Really Central IL Illinois
There is a ton of info on here about dealing with the push rod - including removing a front bolt and replacing it with a longer one temporarily to jam the push rod up; some use heavy grease to hold the rod up. Many put the engine at TDC to make things easier.
You can clamp the rubber line that connects the gas tank to the 'hard' fuel line at the PS rear of the car using these; which is what I use. You don't have to clamp down on the line like there's no tomorrow -- just enough to pinch off the gas flow.
You can clamp the rubber line that connects the gas tank to the 'hard' fuel line at the PS rear of the car using these; which is what I use. You don't have to clamp down on the line like there's no tomorrow -- just enough to pinch off the gas flow.
Before doing anything, compare the new pump with the old. If not the same, figure out what you are going to do to make it fit (bend the lines or take it back).
If you have and original you are going to rebuild, plug everything until you get it rebuilt or do it yourself. Something as simple as a fuel pump can be a PIA.
Thread Starter
Racer
Joined: Apr 2013
Posts: 293
Likes: 0
:agree: Vice Grips (don't clamp too tight) or disconnect the fuel line from the tank quickly and stuff a 3/8" bolt in it and clamp it. You are going to loose fuel, so be prepared, Pin the rod with a 3/8" bolt as per prior threads - finger tight.
Before doing anything, compare the new pump with the old. If not the same, figure out what you are going to do to make it fit (bend the lines or take it back).
If you have and original you are going to rebuild, plug everything until you get it rebuilt or do it yourself. Something as simple as a fuel pump can be a PIA.
Before doing anything, compare the new pump with the old. If not the same, figure out what you are going to do to make it fit (bend the lines or take it back).
If you have and original you are going to rebuild, plug everything until you get it rebuilt or do it yourself. Something as simple as a fuel pump can be a PIA.
All good advice thanks.. I forget the pump on it. It's not orig. The motor is a 480/480 383 stroker I had built a while back. Put it in.. did everything myself. It's just been too long...
Racer
Joined: Mar 2014
Posts: 433
Likes: 2
From: mendocino ca
check the orientation on the fittings
I replaced mine only to find the fittings were clocked in a different direction, total PIA , check beforehand, mine was a direct replacement from napa, I only noticed after I installed it and had to tweak the lines and fittings
Thread Starter
Racer
Joined: Apr 2013
Posts: 293
Likes: 0
So I bought my motor from Smeding Performance back in the day.. they swear the pump I have is a Holly 12-834. However, the reviews I read on it say it's complete garbage, and the inlet/outlet don't look the same. On mine, they are almost 180 degrees out and on the 12-834 they look to be next to each other. I really want a bolt in pump without having to rework metal fuel lines.. any suggestions?
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Drifting
Joined: Feb 1999
Posts: 1,807
Likes: 28
From: CA central coast
Do a Google search on "6415616", which should be the correct pump for a '65 small block according to my circa 1976 parts book. If your lines don't match the orientation of the threaded holes, then they may have been changed.
Here's what it looks like:
http://www.rockauto.com/en/moreinfo....426&cc=1322941
Here's one from GM: http://www.newgmparts.com/oe-gm/6415616
AC 4657 also shows up online as being correct, but that looks like a casting number to me, not a valid part number:
http://www.corvettepartsworldwide.co...57_p/37218.htm
Thread Starter
Racer
Joined: Apr 2013
Posts: 293
Likes: 0
Strangely, a Google search seems to turn up two different pumps under 2 different part numbers for the 65 small block.
Do a Google search on "6415616", which should be the correct pump for a '65 small block according to my circa 1976 parts book. If your lines don't match the orientation of the threaded holes, then they may have been changed.
Here's what it looks like:
http://www.rockauto.com/en/moreinfo....426&cc=1322941
Here's one from GM: http://www.newgmparts.com/oe-gm/6415616
AC 4657 also shows up online as being correct, but that looks like a casting number to me, not a valid part number:
http://www.corvettepartsworldwide.co...57_p/37218.htm
Do a Google search on "6415616", which should be the correct pump for a '65 small block according to my circa 1976 parts book. If your lines don't match the orientation of the threaded holes, then they may have been changed.
Here's what it looks like:
http://www.rockauto.com/en/moreinfo....426&cc=1322941
Here's one from GM: http://www.newgmparts.com/oe-gm/6415616
AC 4657 also shows up online as being correct, but that looks like a casting number to me, not a valid part number:
http://www.corvettepartsworldwide.co...57_p/37218.htm