Porsche Inner CV Help Needed!

[Shane]

Ok, I've got both the stamped steel caps off of the center hub, and I've removed the snap-ring from the end of the shaft. At this point, I figured, "Wow, this is going to be easy." Apparently I was wrong. Is this hub a press fit onto the splines or what? I figured after taking the snap-ring off, the joint would slide right off the end of the axle, but even a hammer and brass punch won't budge it. Do I need to chuck it in a press? I'd really like to get this finished up today since I've already got the greasy mess out! thanks!

[otuttle]

I didn't have any donor joints to pull apart, but I can tell you that new ones go together VERY TIGHT. I would suggest a press.

[CUL8R]

Shane, here is what I did. If the end of the axle is hollow like mine were, put a bolt in there to give you something to smack other than the end of the axle and possibly the carrier inside the joint. Then support the inner "cap" or housing that the boot attaches to with a 2x4 on either side and suspend this over something that won't budge, at all. My vise on my workbench was not good enough, the workbench gave enough that the connection would not let go. I used some stacks of concrete blocks to support the 2x4s. Then smack away on the head of the bolt with your BFH. It will move slowly at first and should pop out about the time the bolt head gets even with the inner race on the joint.

I think the most important part was having a very solid base to hold the CV joint housing.

-Chad

[Shane]

Thanks for the quick help, guys....guess I'd better get busy!

[fasternfaster]

I am a complete newb with respect to what you guys are talking about.. Shane if its not too hard, could you post a picture of the things you are working on? Perhaps even a picture of you with the BFH and where and how you applied it to your work? No matter how crude it may look. Because right now i have no clue what you guys are talking about.

I am in no hurry to see the pictures, so take your time. I just want to learn all the tricks before my turn comes.

[Shane]

Chad,

Thanks for the tips. Here's the fun I had...I couldn't find a good set-up at home to do this, and a local shop in town has a hydralic press, so I stuck the greasy CV/shaft in a plastic bag, threw it in the back of the pickup and headed into town. The shop was closed today for the 4th, so I turned around and came back home. Picked up the shaft/bag and heard a bunch of stuff rattling around in the bag ....The CV joint had come apart in the back of the truck..as in all the balls fell out and the outer race fell off.

So, I guess it gave me the opportunity to do a complete inspection/cleaning of all the parts of my CV joint. It also allowed me to get the inner race off the shaft with a 3 jaw puller. [img]smile.gif[/img] Once I got it all re-assembled, it slid right on the new shaft with no problem. Now I get to do it all over again for the other shaft!! (hopefully without the CV falling apart again!)

[Shane]

fasternfaster,

I'd love to take some pics for you, the only problem being that thru the entire process from beginning to end, my hands are completely covered in CV grease. And as you can see from the above post, I'm not sure I'm the one you should be learing anything from! By the time I was half done, I actually had set up kind of a hand-cleaning-rag-assembly line. One really nasty rag to take off the heavy stuff, one slightly cleaner one to get down to where you could see my hands, another slightly cleaner one to get them about 70% clean, and a final clean up rag so I could pick up tools and use them, but no where near clean enough to pick up my camera with...or even pet my black lab.

If you have complete Porsche axles to take apart, I'll see what I can do for some pics on the next one. If you just have the inner CV's, ready to put on, it will be a piece of cake for you.

[tracykeyes]

So it is my turn to do the inner CV. I don't to mess anything up. Do I take off the steel casing on the end of the the CV to get to the retianing clip on the end of the shaft. Knowing me I will destroy this cv as it looks like a weak casing. does anyone else have any tips for the disassembly?

[Shane]

Yes, the end of the joint is just a stamped steel cap. Take a hammer and punch to tap it off the end, working your way around the rim. It comes right off with very little force. This will give you access to the retaining clip on the end of the shaft.

You will need a press to get the joint off the shaft. Be sure that you're pressing on the INNER race and not the outer. I actually ended up taking the second joint apart and using the 3 jaw puller again since I couldn't find a decent set-up in the press. It's a bit of a juggling act to get all the balls back in place, but entirely do-able. Just make sure you mark and index the inner to outer races so they get put back together the same way they came apart! The outer race WILL go on backwards and get all the balls in...and not pivot at all. Don't ask me how I know that.

[tracykeyes]

Thanks Shane. I know what you mean by putting together the CV. I accidently took apart the vette CV then realized I didn't need to do that. That was fun putting back together! So far I only lost my cool once messing with these.

[jwscholl]

And, advice for those of you not yet started:

Don't get help on CV's from your wife. She will quickly conclude that a GTM was a bad idea after all.

[Ron565]

Shane, be careful. The CV joint only go's together one way. Open the hyperlink below.
Ron


http://www.dune-buggy.com/techtips/c..._polishing.htm

Ratnow, you are are right on the money with the wife thing.