FIXED! Why can't I get my fuel pump back on? help..

Ok.. some of you may know my Chrysler, the '62.. has a 413. Anyway, I'm trying to change the fuel pump (should be a friggin' 30 minute job! Well, it was about 2.5 hours, and i'm only half done, meaning, I can't get the new one back on.

No matter what I do, I cannot get it to seat right against the block. IF I get one bolt started, the thing is crooked (it's in but turned clockwise). It's an exact replacement for the old one, they are completely identical.

I DID run the car to move it w/out the fuel pump installed, did that mess up something w/the cam and where it touches the arm of the fuel pump? I've tried turning the engine over little by little, maybe I was hitting the lobe in a weird spot.. it's the same no matter what I do.

I just don't get this.. I stared at it and tried for almost 2 hours on Saturday. WTF? I'm not this stupid.. I think I'm missing something important though..

ugh

TinyE

 

Don't remember what one but there was a pump I put on once that had to have the lever propped up (or down). There was a hole somewhere on the housing that a nail, weld rod or whatever could be slid in when the arm was compressed. That held it so it would not push on the cam and once bolted on the piece could be pulled out. Helps keep from screwing up the gasket. Kind of how some of the starter/gen brushes have temporary retainer holes for assembly.

 

AH... I'll look for that.. anyone else concur on this? makes sense though.. it really does seem like the rod is pushing against the cam and keeping it from getting on there straight.

E

 

bttt for me

 

according to the MOTORS manual,there is no pump rod,on the 413. The manual suggests to turn the engine so the pump lever is installed on the low side of the fuel pump eccentric. New pumps are sometimes stiff, and make this task difficult,but it will go on. Sparky

 

Toss that motor's manual in the trash can.

There is a rod on the 413, and you gotta push it up to get the arm under it. You should be able to push and hold the pump against the block if you have everything in there right, then screw the bolts in.

 

Thanks 413,There was no mention of a rod. real world wrenchin' is worth more than the all the booklearnin'! I stand corrected. sparky

 

Yeah there is definitely a rod on there, about 3 inches off the fuel pump that's what you are talking about right? Should i have to move something in the motor to get it on? That fucker just won't go.. It's off by about 1/8" i'll try and push harder on it though I get scared though forcing anything to the block...

 

The fuel pump push rod should move freely in the block.
Push it in all the way,and have someone bump the motor over.
Ideally you want the pushrod on the bottom of the cam profile.
Read: all the way in.
Then you have to make sure the lever on the fuel pump lines up with the push rod,when you go to bolt it on.
Get both bolts started before tightening.

Some motors,like sbc,the push rod falls down when you remove the pump,
so you can't install the new one.

 

your incompitent!

 

Thanks Mike - HA.. you cock. OK so yeah, the fuel pump rod has DEFINITELY fallen down, I can see it in there. SO.. it just pushes back up.. ok.. I can do this.

Sorry it's the first one I've ever done with the engine in the car.

 

Put a blob of grease in the hole to hold the rod up while you align the arm with it.


Mutt

 

Yeah that blob of grease will hole the rod up instead of you playing the fingering game while putting the pump on.

 

Thanks all - I moved that rod up, popped in the fuel pump in about 3 seconds... I knew it was something simple and stupid, I had no idea that rod had fallen and I needed to push it up..

Thanks again!! Car is back on her feet again and running like a champ.

tinyE