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Steering column tilt function - need some help

Old 01-07-2019, 12:00 AM
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1990jim929
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Default Steering column tilt function - need some help

So i am restoring a 1990 Porsche 928 - and in need of your assistance.

Seems my 1990 - 928 with an air bag - needs the tilt mechanism fixed. The prior owner took it apart and lost one key item.

I am in need of part

928 347 341 01
or
928 347 341 00

it's part # 21 in the diagram below
https://nemigaparts.com/cat_spares/p...928/11/403060/

Does anyone have one ? Or have the engineer documents so i can have one made ? Any other solutions ?

Thanks in advance -
Old 01-07-2019, 12:38 AM
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Rob Edwards
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This may be too good to be true, but Sunset lists the latter as available, for 66 cents.

https://www.sunsetporscheparts.com/o...ic-92834734100
Old 01-07-2019, 12:48 AM
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1990jim929
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Thanks - will call them Monday.

I have run down this part a dozen times - without success. So fingers crossed.
Old 01-07-2019, 12:58 AM
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Rob Edwards
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Yes, just because it is listed as available doesn't always make it so. Porsche's supply chain can be a cruel mistress.

If they end up not having availability, 928 International has taken apart at least a dozen airbag (90-95) cars in the last 20 years I'd venture they haven't sold all the steering columns....
Old 01-07-2019, 08:22 PM
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1990jim929
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No luck at 928 International either.

Seems this part is not available.

Any other suggestions ? Anyone know where i can get the engineering prints so i can have the part fabricated ? I do have an email into Porsche USA.

GTS owners - is this a metal, plastic or rubber part ? It was seriously like a $2 part - when it was available.. I would love a pic if someone doesn't mind crawling under the dash with a camera :-)
I do have the manual and there is a picture in there - but it doesn't have a lot of detail and picture is bad.

Thanks for the help.
Old 01-07-2019, 10:10 PM
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Originally Posted by 1990jim929
I have run down this part a dozen times - without success. So fingers crossed.
Have you tried 928 Specialists and/or 928sRUs?

It's hard to believe 928 International cannot locate the part. Surely they have the column assembly out of dozens of 90+ 928s? Perhaps they can locate the entire mechanism?
Old 01-07-2019, 10:21 PM
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Based on this pic I think it's nylon. I will see how hard it is to get out of there for measurements, am a little nervous about the Rube Goldberg spring holding it in at the rear.

Old 01-07-2019, 10:43 PM
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1990jim929
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This place is awesome -

I have the length measurement - and it looks to be just larger than the handle that slides through the middle of it.

From what i can tell from this pic - it looks like this is the closed position.

Can you snap one with it open ? lever is pointed down.

Thanks so much - Rob.

Last edited by 1990jim929; 01-08-2019 at 10:52 PM.
Old 01-07-2019, 11:05 PM
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This is per the 928 manual - trying to figure out how the taper in the middle works ? Is it sloped as you twist the lever ? or is it just a transition to a smaller diameter that fits in the next part ? Is it only tapered on one side of the piece ?

Thanks again


Old 01-08-2019, 10:57 PM
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Worf928 - I have tried all the usual places (928 international / 928rUS etc)
I have also tried maybe half a dozen suppliers - all show the part available, until you order it - without any luck.

It looks like a part that i can fabricate - if i can get enough detail / few pics of it.

Thanks for comment.

Jim
Old 01-09-2019, 12:03 AM
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Mark Anderson
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Originally Posted by worf928
Have you tried 928 Specialists and/or 928sRUs?

It's hard to believe 928 International cannot locate the part. Surely they have the column assembly out of dozens of 90+ 928s? Perhaps they can locate the entire mechanism?
we do have the entire column available. Just not the pieces
Old 01-09-2019, 12:09 AM
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LOL, mine's cracked too. We're all in this together,now....










Old 01-09-2019, 12:14 AM
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Mark - at 928 International - I just sent you an email w the details to the mr928@928intl.com address.

Will be interested in your response.

Thanks
Old 01-09-2019, 12:18 AM
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It's basically a 35.6 mm long cylinder with a 10.08 mm hole driller through. The cylinder is 14.98 mm in diameter at the rear-most 21.9mm, and 13.95 mm in diameter along the forward-most 13.7 mm, so there's a ~1mm eccentric 'shelf' at the transition. I think the bore has worn at the rear end, so the wall thickness along the 'narrow' side of the bore is down to 1.65 mm at the rear while it's 1.93 mm at the front. It took about 90 seconds to liberate this from the car, if anyone is wondering.
Old 01-09-2019, 12:19 AM
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Originally Posted by 1990jim929
Mark - at 928 International - I just sent you an email w the details to the mr928@928intl.com address.

Will be interested in your response.

Thanks
I can look at that on Thursday

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