ghinkel

Hey everyone, I'm stuck on my steering rack rebuild. The picture below shows all the parts (on the white sheet) of the rebuild kit from Roger at 928sRus:



I can't figure out where the blue Teflon band (in the top row) goes, and the black O-ring 2 spots to the right of it. (I believe the O-ring is #13, see below.)

This picture shows the what I think is the ordering of the parts on the shaft between the 2 circlips:



According to the next diagram, these parts (left to right) are:

Circlip #11, washer #12, seal assembly (Teflon band #16, O-ring #15, race #14) , O-ring #13, washer #12, circlip #11. (By the way, #16 and #15 are not included in the rebuild kit.)



The issue is, that series of parts won't fit in the space between the 2 circlips. And, of course, I don't know where the Teflon ring mentioned above goes.

Any help, as always, is greatly appreciated.

G.

Bill Ball

My guess: part number 6, just done in blue.

http://jenniskens.livedsl.nl/Technic...9/MyTip919.htm

ghinkel

Thanks Bill, but it's far too large to replace #6.

ghinkel

I believe I have this figured out. The difficulty was with #16, as it appears it's outside diameter is somewhat larger than the original. (I am going to attempt final assembly this evening.)

The ordering is as follows:

Teflon band #16, O-ring #15, race #14 , O-ring #13.

#15 fits inside the groove on the race, #16 fits over that, and #13 actually fits inside the race itself.

Incorrect, they are included.

Mike Frye

Gary,

Nice job of cleaning and arranging the job there.

One thing I would say in case you haven't done this before is to make sure that you get the center tube #22 completely seated in the two end pieces (1 and 27 I think).

The first time I did mine I must not have worked it in all the way and although the threaded ring (7) seemed tightened down if I had looked in the hole where the banjo bolt for the hard hydraulic line goes before putting it on I would have seen that an O-ring was visible and it shouldn't have been (should be in beyond the hole).

When I did it the O-ring had caught on the teeth of the center rod (3) and pinched just a little bit of it.

This ended up causing it to leak (not right away, almost a year later) and required me to completely remove the rack to replace that O-ring.

Good luck on the reassembly!

ghinkel

Thanks for the great tip Mike, I'll check #27 as it's assembled, and inspect #1 as I put it together.

As you've done this before, can you identify what part #8.1 is?

ghinkel

Correction, make that 3.1

Speedtoys

Somewhat related question..

What would cause up/down/forward/backward movement in the rack steering shaft?

I dont THINK there is any left/right play in it..yet.

Mike Frye

Gary,

I think 3.1 is one of the sweeper seals. You may have to destroy the old one to get it out but be careful not to scratch anything as you dig it out. The old one is probably stuck in the end piece (1) so you may not know it would come out.

If I'm right it corresponds to #10 from the other end of the rack (same part, reverse angle) which goes into #27 IIRC.

#7 needs to be seated all the way in with all of that other stuff in there before it in order for it all to seal correctly.

Lizard928

Too bad you hadnt joined awhile ago.
I hosted a rack rebuilding party down here.

ghinkel

I inventoried all the removed parts again, and no #3.1 to be found. After taking it all apart again, I assembled 8,7,6,5 and 4 and inserted into #1 observing the fit through the top hole, and it's definitely flush, simply no room for 3.1, so I'm going to have to go with that. (Would be nice if there was a way to pressure test it, independent of the car as it's not running yet.)

Thanks again for all the great advice Mike.

I would have learned a lot for sure Colin.
(Of course, I didn't have the car with the leaking steering rack then )

RET

Sorry, I can't help with part 3.1: I don't remember, but FWIW it does not show up in any of the pictures that I took when I rebuilt my steering rack.

Did you replace part #26 (the plastic washer/bushing/bearing at the right end of the rack assembly), and did you find a source for it? Although this is a wear item, it is not included in any of the rebuild kits that I was able to find. (Jeff/Speedtoys - I believe that wear of this part is likely the cause of radial play in the steel rack shaft.)

Also, how did you go about removing the threaded rings (parts numbered 19), and how will you torque them? (For that matter, what is the proper torque?) I had a real problem with the idea of using a hammer and drift punch, so I bought an "engine pin wrench" (tool pn BMW3031) from Sir Tools. It had to be modified slightly to fit, but worked very well.

You might want to consider replacing the hoses as well as the reservoir/filter also.

Bob

ghinkel

Thanks Bob, that makes me feel better.

No, and it wasn't included in the kit.

Hammer and a punch to get them out, alternating one side to the other. I had no way to torque them, so tightened in the same manner till "snug". I believe it's metal to metal at that point.

Chopperharris

Hi
Sorry to dig up an old thread but the OP had the same problem that I have with part #16... The outside diameter is larger on the replacement blue Teflon ring than the original white part so I can't see how it will fit within the central tube without sanding it down a little.
Has anyone else had this challenge?

I've PM'd the OP but thought I'd post on here also incase others had/have the same problem.

Thanks in advance
Ben