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Old 06-21-2009, 03:56 PM   #1
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slipping clutch?

yep. just finished a turbo swap, fuel pump, and others, ECU is in, and the car will rev a blip ahead and settle back down when accelerating.

Just started doing it after backing out of a tricky driveway with a steep hill.

toast? How long before it craps out totally. I have no papers in the car's file to indicate a clutch was ever done, it's an lpt with 160K on it.
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Old 06-21-2009, 04:12 PM   #2
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If you were REAAAAAAAAALY not kind to it while backing up this tricky hill, there's a chance it's just glazed.

baby it, and you can get some time out of it.
you should feel it slip in 5th first, and then 4th, and then 3rd.
at that point, you NEED to replace it.

the long you go, the more you wear down the friction disc, and you'll put the rivets into the flyweel. and, if it's slipping, you're overheating the flywheel.
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Old 06-21-2009, 04:44 PM   #3
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yeah it slips in 5th, not sure about the rest. I was being extremely gentle once I noticed it, I wanted to make my 4 hour trip home without a tow
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Old 06-21-2009, 04:51 PM   #4
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you'll have time.
just don't hammer on it.

maybe run base-boost, instead?
run the wastegate, right from the compressor.
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Old 06-22-2009, 07:43 AM   #5
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So who has Robyn been racing?
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Old 06-22-2009, 08:03 AM   #6
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more like 160K on what we are pretty sure is the original lpt clutch
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Old 06-22-2009, 08:07 AM   #7
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oh.. sweet...

I can't WAIT!..
I'm right behind ya.


OH!
I saw another 9-5 in her color.
kinda cool.
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Old 06-22-2009, 08:23 AM   #8
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Definitely baby the clutch if you think it's going b/c it's a costly repair on a 9-5. My father is a Saab master tech working at RL Smith Saab in Castleton and he has horror stories about how much of a nightmare it is to do a clutch or transmission repair on a 9-5. Everything needs to come out and it's VERY labor intensive.
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Old 06-22-2009, 02:24 PM   #9
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Just remember to replace it with an aero clutch when you go back. Give you a good extra margin of durability.
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2.0 GOOSE 500whp + 8500rpm = 11.06 @125 E85
Viggen 439whp / 447tq 12.43 @114 on Gt2871.64, (Now 511whp Gt3076)
Nordic E85 9-3 SS Aero 320hp / 350ftlbs
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Old 06-22-2009, 03:24 PM   #10
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oh yeah Nick, aero all the way.....I'll be placing an order soon.
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Old 06-22-2009, 03:27 PM   #11
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FWIW, Spec Sells a "stage1" aero clutch cheaper than the stage 1 LPT.

*shrug*

I'd probably use an aero PP, and a 6-puck disc.

same foot feel, and more grip.
(just maybe a bit more chatter)
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Old 06-23-2009, 06:54 PM   #12
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Question Nick = can you use an aero clutch on a LPT flywheel without resurfacing ?

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Originally Posted by GenuineSaab View Post
Just remember to replace it with an aero clutch when you go back. Give you a good extra margin of durability.

Assuming the old friction plate was replaced before hitting the rivets.
Wouldn't the old friction place have worn a circular grove that would create a step in the middle of the Aero clutch contact surface ?
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Old 06-24-2009, 04:06 AM   #13
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clutch pads are softer than brakes, I believe.
I've never seen a "lip" like you'd see on brakes.

there are a lot of people that re-install clutches w/out re-surfacing.
the nice, roughed-up surface is usually gone within a day of driving.
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Old 06-24-2009, 07:57 AM   #14
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You should have the flywheel resurfaced with any clutch change in a performance application for best life.
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2.0 GOOSE 500whp + 8500rpm = 11.06 @125 E85
Viggen 439whp / 447tq 12.43 @114 on Gt2871.64, (Now 511whp Gt3076)
Nordic E85 9-3 SS Aero 320hp / 350ftlbs
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Old 06-24-2009, 07:58 AM   #15
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whoops. I should have Said "but.. do it, anyways, because the propper bedding of the friction disc depends on it"
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Old 06-24-2009, 10:24 AM   #16
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Even with not doing a preformance upgrade it should be done.

Clutch resurfacing that is.
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Old 06-25-2009, 09:22 AM   #17
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mmmm...

thankfully the slip seems to have gone away for now... I may have just "glazed it" as some mentioned. hopefully I can get some more life out of it.

I'd rather get my spg kit on the vert than a clutch in this car if it isn't really needed
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Old 01-06-2010, 11:04 AM   #18
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OK it's only a matter of time now, it's slipping nice and good.
What should I order for this lpt with a td04?
  • Aero clutch kit (disc, pressure plate, rivets)
  • slave cyl with throwout bearing
what else do I need, or what is a good idea on a high mileage car "while we're in there" ?
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Old 01-06-2010, 11:06 AM   #19
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Rear main seal, aka rear crank seal.
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can be prone to failure due to increased localized stresses in the hole penetrations
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Old 01-06-2010, 11:24 AM   #20
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Yep, what tweek said. Also, be sure that slave is an OEM saab unit, not a scamtech.
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