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Old 03-18-2021, 10:47 AM   #26
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I bought a kit from rockauto, can't remember if they had a zf kit.
*ok, I looked. lots of cam kits, but for 92, they sell a zf rack for $191.
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Old 03-18-2021, 02:00 PM   #27
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Originally Posted by mikep View Post
I bought a kit from rockauto, can't remember if they had a zf kit.
*ok, I looked. lots of cam kits, but for 92, they sell a zf rack for $191.
I just looked. The $191 deal on RockAuto is a rebuild service by Cardone. You have to send yours in first. Then you'll get your rack back later. They must have parts but no cores. I wouldn't expect that service to be around much longer if there are any parts for these racks that aren't used anywhere else.
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Old 03-18-2021, 04:12 PM   #28
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Recently acquired a ZF rack too. Skandix has the rebuild kit too.

Think I'll do the rebuild myself.
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Old 03-18-2021, 07:05 PM   #29
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Anyone want a digitial copy of the Green Book on how to rebuild a rack?
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Old 03-18-2021, 07:24 PM   #30
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Dumb question? Why is ZF better than cam?
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Old 03-18-2021, 07:37 PM   #31
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Why did Volvo move from VF to CAM?
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Old 03-18-2021, 08:43 PM   #32
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Dumb question? Why is ZF better than cam?


It's better in every way.
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Old 03-18-2021, 09:38 PM   #33
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Why did Volvo move from ZF to CAM?
They didn't. Both ZF and CAM racks were used during the entire run of the 240.

There were 3 versions of each rack and each one used a different rebuild kit. The kit for ZF racks from Skandix is for type 3 racks.

https://www.mavalgear.com/dam/image-...e18/655030.pdf
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Old 03-19-2021, 05:57 PM   #34
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Just to add to the fun diversity in the steering racks. The late model CAM type rack from about 89-93 are clearly marked TRW.
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Old 03-20-2021, 09:53 PM   #35
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Anyone want a digitial copy of the Green Book on how to rebuild a rack?
Yass! PM'ed
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Old 03-20-2021, 10:23 PM   #36
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So who here has actually rebuilt one of these racks themselves?

I have a used ZF sitting here, to replace the leaky CAM rack in my car. I'm currently thinking about rebuilding the ZF before installing it, since there's a real chance it could start leaking soon after it gets put back into service.
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Old 03-20-2021, 10:51 PM   #37
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mueller. somewhere near the middle of this page in his 242 thread: http://forums.turbobricks.com/showth...t=57322&page=3

Dunno what kind of rack it was.
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Old 03-20-2021, 11:51 PM   #38
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mueller. somewhere near the middle of this page in his 242 thread: http://forums.turbobricks.com/showth...t=57322&page=3

Dunno what kind of rack it was.
Cool, thanks for the link. That looks like a ZF "type 1." I determined that mine is a "Type 2" using the guide Ian linked. Also found this thread with posts from another member who rebuilt his Type 3. Looks fairly simple. http://www.forums.turbobricks.com/sh...d.php?t=335887

I haven't forgotten about the '75 fuel system parts! We were out of town last weekend but things have calmed down now and I should be able to get everything pulled out very soon.
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Old 03-21-2021, 09:46 PM   #39
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I bought a used (junkyard) CAM rack and took my original ZF rack to a local rebuilder that specializes in steering racks. They said the rack was pitted and thus couldn't be rebuilt. Or rather, that it would always leak due to the pitting.

So the issue is not just whether you can use a rebuild kit, but whether the rack is pitted or not. Perhaps the Cardone rebuilding service addresses this issue. Their page on their service says something about "resurfacing" which might address this problem.

https://www.cardone.com/product/26-1...inion-assembly

At this point, I'm probably going to try the Cardone rebuilding service, as my replacement CAM rack is leaking.

Incidentally, my local rebuilder said they used the same Kotek kit which I had sourced on ebay.
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Old 03-21-2021, 10:16 PM   #40
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I haven't forgotten about the '75 fuel system parts! We were out of town last weekend but things have calmed down now and I should be able to get everything pulled out very soon.
Absolutely no problem and no rush. And I owe you photos of door panels.
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Old 03-21-2021, 10:57 PM   #41
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Quote:
Originally Posted by 504 View Post
I bought a used (junkyard) CAM rack and took my original ZF rack to a local rebuilder that specializes in steering racks. They said the rack was pitted and thus couldn't be rebuilt. Or rather, that it would always leak due to the pitting.

So the issue is not just whether you can use a rebuild kit, but whether the rack is pitted or not. Perhaps the Cardone rebuilding service addresses this issue. Their page on their service says something about "resurfacing" which might address this problem.

https://www.cardone.com/product/26-1...inion-assembly

At this point, I'm probably going to try the Cardone rebuilding service, as my replacement CAM rack is leaking.

Incidentally, my local rebuilder said they used the same Kotek kit which I had sourced on ebay.
Good point, just like with motorcycle forks if the rack surface isn't perfectly smooth it will tear up new seals in short order and cause another leak. With resurfacing I would guess they are talking about turning down the OD of the rack and sleeving it using a thin steel sleeve. Or just installing a very thin sleeve over the damaged rack and letting the seals take up the difference in OD. That's common practice with damaged crankshafts, but might make sense for a steering rack that is getting harder to find.

Thanks for the info!

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Absolutely no problem and no rush. And I owe you photos of door panels.
No worries, I want to make more progress on the wagon soon anyway so it shouldn't be too long regardless.
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Old 03-22-2021, 09:38 AM   #42
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Most likely either grinding the rack smooth and re-chroming it and using undersized bushings in the rack. Or just using a thick plating layer to build up the surface. Hard chrome can have some impressive material buildup!
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Last edited by culberro; 03-22-2021 at 11:25 AM..
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Old 03-22-2021, 07:24 PM   #43
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Most likely either grinding the rack smooth and re-chroming it and using undersized bushings in the rack. Or just using a thick plating layer to build up the surface. Hard chrome can have some impressive material buildup!
I hadn't thought about hard chrome but yeah, you're probably right. A repair sleeve would get unwieldy in the length required for a steering rack.
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Old 03-22-2021, 09:31 PM   #44
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Looking at the thread pics with rebuilding a rack I see many places where this can go wrong.
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Old 03-23-2021, 09:33 AM   #45
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I know a guy who metal sprays titanium...
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Old 03-24-2021, 01:36 AM   #46
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I know a guy who metal sprays titanium...
I forgot about spray welding! That’s a good way to repair a shaft as well!
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Old 03-24-2021, 05:27 PM   #47
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I know a guy who metal sprays titanium...
spray welding is awesome.
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