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shifter problems, shifter linkage? won't go into reverse..

 
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TajMan  



Joined: 07 Oct 2004
Posts: 151
Location: Salt Lake City, Utah

PostPosted: Thu Mar 06, 2014 7:59 am    Post subject: shifter problems, shifter linkage? won't go into reverse.. Reply with quote

On my '87 924 S, I just got done doing a headgasket and timing belt job..

a few various issues I'm still trying to figure out, but now that I'm trying to test for the first time- the trans won't seem to go into reverse and has slight difficulty going into other gears.

It feels like a shifter-linkage issue. I don't even know how the shifter linkage setup works in these cars!

Related- not sure. The clutch TOB was always making noise when I pushed in the clutch for the past year I owned this car.
Now, the TOB makes more noise than ever when clutch is depressed.
Pedal effort is still completely normal though, I believe the hydraulics are working perfectly and bearing is pushing on the pressure plate fingers correctly.

Any tips? I don't know what I could have bumped or caused interference, in the process of doing the head job..

Engine makes a whine too, sounds like timing belt or balance shaft belt, I didn't have the porsche tools to set timing belt tension when I did the job.. this is the next big thing I have to address
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fiat22turbo  



Joined: 18 Jan 2006
Posts: 4040
Location: Portland, OR

PostPosted: Thu Mar 06, 2014 8:23 am    Post subject: Reply with quote

The 944 uses the same linkage (and same basic transaxle) as the 924 from 1980-on. Lots of info on the web about how to check and service the linkage in a 944.

http://www.clarks-garage.com/shop-manual/trans-07.htm

http://forums.pelicanparts.com/porsche-924-944-968-technical-forum/679755-stubborn-reverse.html

Can you access other gears?

If you can, then your problem may be internal to the transaxle. I would suggest replacing the transaxle fluid with a good product, like Redline, etc.

While it is in gear, is the shifter able to move side to side when it is in gear?

If so, 1/8" of movement is normal, more than that and you have a worn shifter pin and will need to choose the repair method you'd like to take.

On my 944 turbo, I cut the pin off, drilled and tapped it for a 10mm bolt and used a pair of 10mm x 3mm thrust bearings to carry the load with a nut to lock the bolt in place along with some locktite.

There are several companies online that make improved shifter solutions, like Only944:

http://only944.com/partscatalog/

Good luck!
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Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose)
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TajMan  



Joined: 07 Oct 2004
Posts: 151
Location: Salt Lake City, Utah

PostPosted: Thu Mar 06, 2014 8:35 am    Post subject: Reply with quote

Does this bolt with a 1/2" or 13mm head, & washers & nut, look familiar?

It was on the side of my car, didn't get re-installed somewhere..

The shifter feels loose, like something was removed and not properly re-installed, did not feel like this before I was working on the car.
But I didn't think I messed with any shifter linkage stuff..
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fiat22turbo  



Joined: 18 Jan 2006
Posts: 4040
Location: Portland, OR

PostPosted: Thu Mar 06, 2014 9:03 am    Post subject: Reply with quote

Sounds like you've got a worn out shifter. Follow the instructions in the Clarks-garage.com link I posted and repair from there.

As to the bolt? It doesn't look obviously familiar.
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Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose)
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TajMan  



Joined: 07 Oct 2004
Posts: 151
Location: Salt Lake City, Utah

PostPosted: Fri Mar 07, 2014 11:44 am    Post subject: Reply with quote

I f'd up.
I broke off the bolt which holds the shifter linkage 'stabilizer rod' to the top of the transaxle. I don't think this can be fixed without removing the transmission to extract the broken bolt.

I have listed my car for sale locally as-is
https://www.ksl.com/index.php?nid=218&ad=28962433&cat=656
(there are pics of the issue on KSL there)
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fiat22turbo  



Joined: 18 Jan 2006
Posts: 4040
Location: Portland, OR

PostPosted: Fri Mar 07, 2014 1:11 pm    Post subject: Reply with quote

Transaxle removal takes a couple of hours. Get at it.

Only944 sells an improved stabilizer bar that includes a new bolt.
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Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose)
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TajMan  



Joined: 07 Oct 2004
Posts: 151
Location: Salt Lake City, Utah

PostPosted: Sun Mar 09, 2014 3:09 pm    Post subject: Reply with quote

I was selling car anyway, its too bad this was the last straw for me.

I sold the car to a local highschool auto shop teacher who also owns a 924 turbo, so I'm glad it went to a good new owner.
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