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Allan E
Trainee


Joined: 17 Jun 2017
Posts: 84
Location: North-East England


PostPosted: Fri Jun 30, 2017 12:06 pm    Post subject: Rear spoiler Reply with quote

The rear spoiler on my car when using the dash switch raises smoothly however when lowering it, half way down it tends to chatter.
I have had the drive mechanism out and the drive wheel runs free and easy, greased the fulcrum, oiled all the visible joints and it still persists.
Forgot to add, the spoiler has been removed in the past, according to previous invoices, for some remedial paintwork.
Any ideas?
 
  
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decgraham
Suzuka


Joined: 17 Sep 2008
Posts: 1093
Location: Spain


PostPosted: Sat Jul 01, 2017 7:54 pm    Post subject: Reply with quote

Hi,

Have you had a look at the gear quadrant, are you missing a tooth or have a badly worn one?

Good luck with finding the problem.

ATB Smile
_________________
1995 993 C2 Cab TipS in Guards Red
 
  
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Allan E
Trainee


Joined: 17 Jun 2017
Posts: 84
Location: North-East England


PostPosted: Sat Jul 01, 2017 11:02 pm    Post subject: Spoiler Reply with quote

Checked the teeth on the quadrant and they are as new, they mesh with Drive wheel perfectly.
 
  
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Chris993C2
Hockenheim


Joined: 09 Mar 2010
Posts: 625
Location: South Bucks


PostPosted: Sun Jul 02, 2017 8:28 am    Post subject: Reply with quote

If the teeth on the quadrant look okay, it might be the gearbox teeth - either the external drive (although major wear should be visible) or the internal one.

Remove the gearbox (just a couple of bolts - for the drive cable pull back the rubber boot from the motor, then slide out the white plastic insert to release), and mark the position of the output gear with a marker pen. Use a cordless drill on the flexi cable to turn the output gear through 180 degrees.

Refit and see how you get on...
 
  
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Jam911
Barcelona


Joined: 31 Oct 2010
Posts: 1271



PostPosted: Sun Jul 02, 2017 2:49 pm    Post subject: Reply with quote

Also see Wheeler Dealers when they did a 993 Targa, same issue.
_________________
Current '07 997 C4S
Ex '99 2.5 Boxster
 
  
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Allan E
Trainee


Joined: 17 Jun 2017
Posts: 84
Location: North-East England


PostPosted: Sun Jul 02, 2017 7:25 pm    Post subject: Reply with quote

Chris993C2 wrote:
If the teeth on the quadrant look okay, it might be the gearbox teeth - either the external drive (although major wear should be visible) or the internal one.

Remove the gearbox (just a couple of bolts - for the drive cable pull back the rubber boot from the motor, then slide out the white plastic insert to release), and mark the position of the output gear with a marker pen. Use a cordless drill on the flexi cable to turn the output gear through 180 degrees.

Refit and see how you get on...

Either way Chris, would that not affect both the raising and lowering of the spoiler?
The "chatter" only occcurs when the spoiler is about 3" from flush with the engine lid.
 
  
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