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Lost in the forest...time for a C4 rebuild

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Old 05-03-2020, 03:17 PM
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It’s a factory part on there.
Old 05-03-2020, 03:28 PM
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Looking at that, however, is exactly how I have mine installed.


Old 05-04-2020, 08:02 AM
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Looks like you might have installed the ring upside down. The pressure plate should fit into the step on the timing ring. There is a chamfer one one side. That should face the starter ring.

The way you have it sitting in your oven is the way it should be mounted to the flywheel.
Old 05-04-2020, 09:30 AM
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Originally Posted by cobalt
Looks like you might have installed the ring upside down. The pressure plate should fit into the step on the timing ring. There is a chamfer one one side. That should face the starter ring.

The way you have it sitting in your oven is the way it should be mounted to the flywheel.
That's how I have the starter ring on there. The flat side is against the flywheel and the side with the step is against the pressure plate, which slots inside of that step.
It's very odd that the crank/flywheel sensor doesn't line up since it's an OEM part.

The only thing I could think of is since it's an '89 it may be a first year part that was updated for 90+ that thereby fixes the alignment issue? I don't necessarily want to buy parts if they won't solve the issue, though.
Old 05-04-2020, 09:35 AM
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Probably on account of the one year only single mass flywheel


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Old 05-04-2020, 09:44 AM
  #126  
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Originally Posted by r-mm
Probably on account of the one year only single mass flywheel

I just had to get the red-headed step child of a car, didn't I? Will be ordering up the updated bracket today. Thanks guys.
Old 05-04-2020, 09:45 AM
  #127  
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I can't recall the details of your car - its the rest an 89? i thought specifics of the starter / bell housing means you must stick with the '89 flywheel (not a bad thing).
Old 05-04-2020, 09:56 AM
  #128  
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Originally Posted by r-mm
I can't recall the details of your car - its the rest an 89? i thought specifics of the starter / bell housing means you must stick with the '89 flywheel (not a bad thing).
It's an '89 engine with standard G64 gearbox.
This is what Pelican shows for my starter (which is exactly what it looks like), which it looks like may be the starter for the later tiptronic cars


This is what they show for 90+ manual transmission cars:


Does this look like the starter on your guys' cars? If so, that looks to be the issue with alignment. Which means I'll have to get a new crank sensor bracket and a later 964 starter.
Old 05-04-2020, 09:59 AM
  #129  
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later is what mine looks like. I think you gotta do some reading about what makes your car... special i wanted to go to the 89 single mass flywheel but there are differences in the bell housing that make that not feasible. the starters can not be swapped on account of the nose bearing being different.

I could be wrong but this tells me that you need to stick with the entire 89 setup. I could be wrong and maybe its forward compatible but not backward. What flywheel do you have? DMF, SMF, LWF ? Obviously the clutch needs to match...
Old 05-04-2020, 10:03 AM
  #130  
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The 89's had the defective flywheel. IIRC it had the rubber center type. I have only come across one in all the years most had been changed out under warranty or age by now. Sounds like it is your issue. I would have to check my C4 trans but it is storage. I swapped out my full drivetrain so I don't recall offhand.
Old 05-04-2020, 10:06 AM
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I think you mean rubber centered clutch ? The all metal single mass flywheel on that car seems quite light and desirable. many porsches had rubber sprung clutches but the replacements are almost universally conventionally sprung. I swapped my 3.2 from rubber (original was fine btw) to 'normal' with no adverse effects.
Old 05-04-2020, 10:06 AM
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Originally Posted by r-mm
later is what mine looks like. I think you gotta do some reading about what makes your car... special i wanted to go to the 89 single mass flywheel but there are differences in the bell housing that make that not feasible. the starters can not be swapped on account of the nose bearing being different.

I could be wrong but this tells me that you need to stick with the entire 89 setup. I could be wrong and maybe its forward compatible but not backward. What flywheel do you have? DMF, SMF, LWF ? Obviously the clutch needs to match...
Oh, my car is definitely special. Should just call it Frankenstein.
The OEM setup was a single mass flywheel with the damper (at least that's what it looks like) on the clutch. I bought the "standard" RS clutch/flywheel/pressure-plate clutch kit from EBS, which is the same as Pelican, etc.
If the updated starter can mount on the transmission I have (it's not the original trans, swapped by the PO, so I'll have to check if it's year specific) then that's the route I will go as it's much easier to toss in a new starter.
If the updated starter won't work....then I'll have to do some figuring. Time to scour Google to see if I can find an answer.
Old 05-04-2020, 10:10 AM
  #133  
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if i were you i'd stick with the original starter, get it rebuilt if it ever goes.
why didn't you stick with the original SMF out of curiosity ?
Old 05-04-2020, 10:15 AM
  #134  
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It has been a long time since I have seen one although I thought it was called the drive plate and was part of the flywheel and still used a standard pressure plate. I would like to see pictures of your setup if you have any. IIRC the SC and 3.2 units were different. I honestly don't work on many C4's not my thing but I could be mistaken. I was just looking at another 90 C4 yesterday maybe I need my head examined.
Old 05-04-2020, 10:27 AM
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This is what my bell housing looks like, as well as the p/n stamped on it. I plugged the number into Google and according to Autobahn it "should" work on 964s, both 2wd and 4wd: http://www.autobahnparts.com/part/po...n-housing-case

And the reason I'm trying to update things is because eventually I'll be putting a G50 into the car and getting rid of the AWD bits. I know it's expensive and I would have been better off just buying a C2, but at the time I bought the car it was more of a DD, now it's almost exclusively a track car. But that's another conversation for another day.






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