checkmate1996

Well, I'm on my spare engine and I removed the 3 bolts holding on the oil pump. I've also removed the gear as well. What's left? I'm trying to see how hard it's to replace the oil pump o ring. However, I can't seem to remove the oil pump. What am I missing?

Mrmerlin

Hi the pump is sort of pressed into the block after you remove the 3 bolts put the gear back on and try to pull the pump straight out a little wiggling might help but not much , also spray some pb on the pump circumfrence it should pull straight out, Stan

hacker-pschorr

I was forced to remove my oil pump about 7 times this past spring, there are two ways I found that work the best:

A. Rubber hammer, lightly tap the shaft in various positions to work it loose.

B. Very large hammer, swift blow from any direction onto the shaft - this method works the best, removes the pump with one swift blow. It is best to hold off on this method until you are 100% sure the pump you are removing is not going back into the car.

Mrmerlin

warning a BFH will probably bend parts that you might want to use later

hacker-pschorr

Reason why I said - only when you know the pump is not going to be used. I really doubt you'll bend the shaft, it's pretty thick.

I think one time I put the gear back on, used a 3 foot pry bar, popped right out.

checkmate1996

[QUOTE=I think one time I put the gear back on, used a 3 foot pry bar, popped right out.[/QUOTE]

LOL - Almost everything on this engine is seized, so I've done heat, PB, etc. etc. Then, tonight, I put the gear on like merlin said and then used a 3 foot pry bar. I wrapped the prybar in a pair old pajama pants as not to scratch any of the aluminum. I work my way around the oil pump. It took a while, but then I could start to see about 1/16th of an inch lip protrude. I think took the J bar side and worked it some more. That finally did the trick and it popped out.

Suprisingly, the o-ring looked suprisingly good for being the original. Was still very soft and plyable.

Now the next question, does it matter how this sucker goes back in? The WSM was talking something about aieral play, etc..

hacker-pschorr

The bolt pattern will only allow it to be installed one way.

Once you have a new seal on the pump and put a dab of oil on the seal. It will be easy to rotate around to find the correct position.

checkmate1996

Thanks!

Ad0911

Stories like this make me scared to touch any part of my 928 build again. Just when I think I did a good job by replacing the seals in ans around the oil pump an putting it in the car without trouble I read that it is virtually impossible to do duch a thing without special tool xyz. Oh boy I feel a big job coming. Should I do it now all over again with engine out the car or wait till it actually leaks? But than it is in the car.

545svk

Also remember to put the inside gear back the correct way.