Our 944 needed rear wheel bearings, and it was suggested we replace the spacers that the seal ride on. Cool, makes sense. I was in Houston and picked up the factory spacers - they are a different thickness that the ones I am replacing. I asked them to double check the part numbers before I left, and they did, assuring me these are the correct spacers.
The part numbers are 113501303 for the outer and 113501305 for the inner. Our 83 944 is a very early model, has 82 in some locations, my question is what should I do -
Does anyone have any advise ????
Many many thanks in advance,
Steve
Wanting to be cruising this weekend - new half shafts and bearing are here, ready to assemble and drive, except for this issue . .

 

The part numbers are correct. These parts are used in all the 924 and 944 with steel trailing arms. Are the new parts still in sealed bags? If so, and they are different maybe the wrong parts are in the right bags (not unknown). When you say the parts are different, what exactly do you mean? It's very rare to change these spacers unless the seal has worn a deep groove. The correct spacers are steel.

 

Yes, they are in sealed bags, from the dealer. The old ones did not have deep grooves, but it was noticable where the seal "ran". I guess it is possible someone changes them earlier and put the wrong ones in, causeing the bearing failure (?).
I might try and snip a pic tonight after work, really wanted to get it all back together ASAP, you can relate!

 

Heck with it - I am going to put it together tonight with the new spacers, bearings, seals and half shafts plus whatever other part I have, then go for a ride!
YAHOO!

 

Note that the inner spacer has the large bevel that goes against the flange of the stub axle.

There is some confusion as to how the nut loads up the spacers. Since the inner race on the roller (outer) bearing floats, all of the compression loads pich the inner race on the ball bearing (inner). So the only thing that holds the stub axle in place is the roller bearing. Guess the 350 ft. lbs. just keeps it all together.

 

Here is a picture of the old vs new outer hub spacer - the inner was an exact replacement. I am debating whether or not to use the "new" talled one . . .
Help!
? ? ? ?

 

It all went together beautifully with the new spacer - I am willing to bet it had the wrong one installed earlier in the cars life, thus causing the bearing failure.
Lots to put back together now -
THANKS!

 

You just might have to take it all apart. Looking at the pictures of the spacers the one on the right is the inner spacer that goes against the flange/CV joint mounting on the stub axle. That is the inside bevel faces in on the car.

The spacer on the left is the outer unit. the bevel on it's out side faces in also. the narrow edge is intended to contact the inner race on the roller bearing and not hit the rollers or thier cage.

So the left is the outer. The right is the inner.

 

Observant - But - The inner one installed also has the bevel. Both were beveled - weird, huh? I had the dealer double check the part numbers. I listened to you, honestly! Made sure to install them exactly as you described, which is how they came apart. The spacers on the car prior to me taking it all apart were the same "thickness", one had the bevel, this outer did not. As mentioned, both new ones had the bevel.
Bought a 4' long 1" piece of iron pipe at the hardware store when I picked up the cotter pin (stainless, why not!). That nut is tight, man, it is tight. Then I tightened it some more!
Go one new half shaft installed, need to install the other side, install the caliper, bleed brakes (might as well do both sides while it is up), put the wheel on and go for a ride!
Thanks a million, you have been a great help!
Thanks!
Steve

 

Only need to torque the half shafts and put the wheel back on . . .
Getting excited!

 

You know what this was used for -

 

As soon as I got it all back together, my wife came down and said "we are leaving in 35 minutes for the Basket Ball games" - AHHHH!

Jumped in, the rear brake was really tight - It squealed a little, for a minute or so, then seated itself and was fine. Car rode great, nice and quiet. I am pretty sure the half shafts were not the problem, it was the bearing. Oh well, something to put on EBay!

Now, to watch basketball, hopefully get the 919 out and then - the 944!

Thanks again for your input and thoughts, published or silent,

Steve

 

I'll say this real slow. I don't care what package the spacers came in or what you found on the car. The spacer with the inside bevel goes against the flange on the stub axle and the spacer with the outside bevel goes agains the inner race on the outside roller bearing. If you put these on any different you will be taking them apart in the near future to fix the bearings if not the CV joints.

These spacers have been assembled this way since I took apart my first independent training arm in the early 70's.

 

To beat you over the head for putting the stub axles back together wrong???

 

OK, ok -

Did you read my earlier post?

The inner bearing that I bought also has the inside bevel - both new spacers from Porsche have inside bevels.
I put the new ones on exactly as you described.

If they fail anytime soon, I will admit my total ignorance. If they last and I never have any more problems, you can't do the same 'cause you seem to be a pretty sharp fellow!

Jeez Louise!

:-)