Crumpler

Hey guys, I'm going to continue on with my winter projects. Next on the list is the replacement of my PS lines, and I have also pulled my PS pump out to rebuild since I have the system apart.
Pictured below is the pump out. Relatively easy, as long as the alternator is pulled first.
The next picture is the pump without the pulley and carrier arm, cleaned up and sitting next to the rebuild kit.




I remember when I did a search a few weeks ago, it's important to keep track of the fins once the pump is open....any other words of wisdom?
Does the rebuild kit look complete?
Thanks ahead of time.

As an aside, thanks to the Brydman for use of the smoke machine, and thanks to Dadddio for helping me smoke my car. Four eyes are better then two...
Only one small leak, hard to believe.

Michael Benno

It's super straight forward. Just keep track of which bolts go in which holes. It took me a while of rearranging bolts when putting it back in the car.

Also pay attention to the orientation of the hose hanger and which bolt it goes on.

Here is a video that was super useful: https://www.google.com/url?sa=t&rct=...0ghILPamjFpquw


When replacing the main shaft seal, a bearing press is useful (a long threaded rod with washers and nuts works just as well. Try to avoid using a hammer.



Make sure you note the orientation of the hose hanger when you reinstall. I had mine backwards and didn't realize it until trying to get the hose to fit on reinstalling.



Here are some shots of what you would expect to see inside:

gbgastowers

I had a few places that were seeping after I did mine and finally got it totally dry using Indian head shellac. You have to be careful with it and don't use too much or get it in wrong places but it sealed up the seeps. Only use it where you can't get it to stop seeping.

Crumpler

Awesome pics, MB. And many thanks!
Hey, one question...I'm hung up on the little snap ring/circlip. I see the guy in the video pop it off with a flat head, but no luck. I don't have anything small enough to grab the back and pull it off.

Any tricks to get it free?
Before I hamfist it.

​​​​​​EDITED...
Fiddled and got it by prying harder.
Rest of it went fine.

Crumpler

The rest went together fine.
Used blue loc-tight on threads.
I found it easier to torque one side the carrier arm and then tap the other side in place with a rubber mallet, there is a beveled edge to help it in.
Hopefully no leaks. Thanks for the tip GBGA, I still have Indian Head around here somewhere.

Crumpler

Interesting development (read frustrating) today in regard to PS pump rebuild.

A new noise had started at idle recently. It is a slight warble. I had her up on floor jacks so I decided to try and chase it. It seems to be coming from the driver's side front of the engine.
I was messing with the belts first. As I was pulling the PS belt, I noticed the spindle was moving forward out of the pump...

I pulled the pump with the suspicion that the circlip had failed and sure enough it was off when I got in there.



I reseated it and it came off again with any amount of pressure.
Sooooooooo there you go, lesson learned, always use a fresh one I guess.
​​I still don't know if this is the cause of the noise, Amazing that seals held but I don't think the spindle could really thrust forward with the belt tensioned.

skpyle

Hmmmm...I just resealed my PS pump a few months ago. That little clip was a beyatch. Now I am a little concerned.

Thanks for showing this!

Crumpler

Now of course, I can't find a suitable replacement for the Jesus clip. Any ideas? O ring holds it snug but I don't trust it to hold up. All other metric snap rings wont work because of the ears.
I've tried parts and hardware stores, I guess I will put in a 911 to Roger.
Sigh.
​​​​​​

Crumpler

Ended up dremmeling an e ring to the specs of the C type ring in question.
Spindle was 11mm, groove was 10, and space available for clearance was 14mm.




It snapped on and holds very well.

Brian'sIris

Thanks for posting this update. Btw, McMaster-Carr is a good place to look for various circlips (aka. retaining rings), for those of you in the US. For example, this one 'may' be the right size:

https://www.mcmaster.com/#90967a160/=17ushwb

Or check with 928sRus or 928Intl.

Onward, I don't mean to burst your bubble, but for your own sake consider the following before committing to that modified e-clip:

1) How did the old circlip connection fail? Is the outer edge of the groove damaged/rounded, allowing the old (hence new) circlip to work itself off? If so, a new/used pump may be in order. Or is the old circlip damaged on its inner edge?

2) It's hard to tell from the photo, but it looks like you've ground the inner diameter of the e-clip to make it fit. Was this e-clip designed for an internal groove (not what you want) or an external groove (like the PS pump shaft)? Further, that e-clip covers only about 3/4 of the circumference covered by the proper circlip, which reduces its holding ability.

3) You've got a 0.5 mm edge radially in that groove...(11 - 10)/2...which is pretty small. A circlip designed for this 10 mm diameter shaft will have an inner diameter that is slightly smaller, such that it is always preloaded and held tightly in place.

And to anyone not 'in the know', circlip pliers exist and are amazing for removing these things! Get some, use them, stop damaging components

And always use the proper clip as designed for its purpose.

Cheers!
Brian

Crumpler

Hey, appreciate the link and no affront taken, believe it or not.

I looked at that McMaster ring (and many others) this weekend.
My concern with that one was the external ears would prohibit getting the platform to fit snug afterwards. Unfortunately the recess it has to fit in was 14 mm. I would have to place it and then try to take the ears off without damaging anything around it, so again effectively altering the clip to make it fit.

I talked to Roger today and there is no clip available without a new pump attached to it...$$$$
There would be an option to have one manufactured to spec, but again ...$$$$

I don't want to appear reckless, but in reality I'm comfortable with the risk assessment here. Currently, the spindle spins freely, there is no play, and the ring sits in the groove and I can't get it budge with effort.