[ds968]

this is my tiptronic  car,  no idea how to get that set up to come out .  totally different than the six speed which is fairly simple, as you noted above..    

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[JTP]

Oh I see, sorry I didn't realize the tip was that different. I've never seen a tip 968 in person.

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[Waylander]

Sounds like the clutch on the roof motor is to slack

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[ds968]

It's very odd ; so from a closed and locked-in position, when pressing the switch to open the roof it opens it only about 1/3 of the way of its max opening potential ( I know what that max is because my other 968 roof works perfectly, lol. ). BUT here's the weird part; when it reaches that point it somehow also releases the two arms ( levers ? ) from the roof slots. I can't figure out why in the world that would happen. So when I try to close it the levers retract but do not catch the roof to bring it down, it just comes down on its own by mere virtue of its own weight, but remains unlocked. Secondly, the other interesting thing is this : if I push the switch while the roof is off, those levers will go all the way out / up to the normal travel distance. They just don't do that when pushing the roof, so the load must have an effect on how far the levers can travel. That leads me to suspect something is stripped or worn out in there preventing full extension of the levers under load, but why they release from the roof slots at all and only catch it back by sheer luck after multiple attempts is puzzling to say the least. They're only supposed to release the roof with the ignition key at half turn when you retract them so you can take off the roof, and not at any other time. I can easily live with a partial pop-up opening, but the other malfunction is what's driving me nuts.

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[Rap]

I had my lock switch lowered because I was worried hitting it while at the track

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[flash]

if you had a convertible, you could just put it in manual mode, and stop worrying about it.  you poor hardtop guys are so screwed

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[ds968]

yeah, see the million and one posts re the nightmares of dealing with 968 ragtops's issues, and then let's talk about the handful of problems that we experience with  hardtops .  

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[flash]

yeah - you just give up and learn to live with the limitations and lower expectations of having a roof.  it's like being forced to drink merlot because it's the only thing the restaurant serves.  better than nothing, but i'd prefer a nice cab.

 

ba dum bum

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[Waylander]

groan.............................................

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[flash]

lol - i didn't say they were good jokes.  i said they were plentiful.

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[Bulti]

Could it be the ignition lock cylinder wore out to the point to where it thinks the key is still in the "release roof" position? Like the roof doesn't know anymore in which position the key is in? Thinking out loud here...

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[ds968]

Hmm, that's also a possibility..as far as disengaging the levers from the roof slots is concerned, but then there's the limited opening of the roof issue which seems to be the result of something else ? Maybe it's a combination of problems that are at play there. Either way, I'll get around to fixing that issue ( MAYBE ) at some point in the future . I have no need to ever open the roof on my daily driver...and for that matter same with the other car; I don't think I had that roof opened, or removed , more than three or four times in the last twelve years ( actually thirty years if you count the 944s ) .

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[ampegboy1]

when pressing the switch to open the roof it opens it only about 1/3 of the way of its max opening potential…   ...if I push the switch while the roof is off, those levers will go all the way out / up to the normal travel distance. They just don't do that when pushing the roof, so the load must have an effect on how far the levers can travel.

 

I agree with Waylander, that bit sounds like the slip clutch is too loose. If you hold the button down, can you hear the drive motor continuing to run after the roof stops lifting?

 

When we replaced my gears, we adjusted the clutch so that it's just tight enough to lift the roof before slipping. Sometimes it will start to slip just before the roof is fully open and you can hear the motor going without moving the roof.

 

Michael

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[ds968]

I did not pay attention to whether or not there's any sound after the roof stops lifting, so I'll have to listen for that . Where is the slip clutch located ? Guessing it's not at all easy to access ..

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[ampegboy1]

The slip 'clutch' is a nut on the sunroof motor in the boot - there's one to adjust the tension and a second one to lock the adjustment in:

http://www.clarks-garage.com/shop-manual...htm#clutch

 

Edit - It's easy enough to access, behind the carpet on the left-hand side (assuming it's the same for LHD as RHD) of the boot.

 

Michael

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[Waylander]

Dead right it can be a bit fiddly to do, David (dry964) has just gone though this pain.


Drop him a line it will be fresh in his memory, he called me while doing the job and my ears are still smarting from the colourful speech

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[ds968]

Lol, unless you're a born mechanic , or, a masochist , getting to most things which need repair in these cars does have a tendency to bring about colorful language :-)

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[ampegboy1]

I'll take any job on the sunroof mechanism over changing another oil pressure sender or hall sender

 

Michael

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[Cloud9...68]

Lol, unless you're a born mechanic , or, a masochist , getting to most things which need repair in these cars does have a tendency to bring about colorful language :-)

Ha!  At least the starter comes out by removing two bolts.  Try a starter R & R on a BMW 3 Series.  You have the choice of removing the intake manifold (a four-hour job) to get to it from above, or, to get to it from below, you have to remove the cabin filter assembly, exhaust, drive shaft, transmission mount, and metal lower protective plate, tilt the engine up as far as it can go, then lower the back of the transmission to expose the starter bolts, which you have to access using 3 feet of extensions from behind the transmission with your head pressed against the bottom of the transmission tunnel.  Then, once you remove the bolts, the starter will undoubtedly be stuck on its huge locating pin, and you'll use some REALLY colorful language wrestling it loose.  Makes most jobs on a 968 look like adding air to a tire, lol.

 

Oh, and as far as the sunroof, I feel your pain.  Mine had its own set of bizarre symptoms, including switches that, without warning, would decide to work backwards.  My solution, which won't work if you want to retain the tilt-up feature (which I never used), was to pull out every bit of the drive mechanism, including all the wires (didn't want to take the risk of the accursed thing ever growing back...), and converting it to manual operation.  I almost always drive with it off, anyway.

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[Waylander]

I'll take any job on the sunroof mechanism over changing another oil pressure sender or hall sender

 

Michael

I have to say the hardest job I have so far is replace the oil filter housing gasket with the engine in the hole, total nightmare took me all day.


Hall sender in under an hour and cheap too $18.00, bought an HKZ101 hall sender off the bay and riveted it to the old mounting plate, then bought a new plug and socket from Brands Hatch performance for $15


All done

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