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Old 01-27-2016, 12:40 PM   #26
spoolinsti05
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Quote:
Originally Posted by Storm View Post
The only thing that comes to mind is excessive pressure plate force. Theoretically, the crank journal is finished the same on either side of the thrust bearing shell. And the thrust bearing is also finished the same on both sides. If the only thing that changed is the clutch actuation, I would logically look there first.



Pics would be of help. Galling, discoloration from heat, scoring, etc. tell different tales.



Jay

The bearing was literally being smushed. You can see tons of heat marks on the crank where the thrust rides. Also a deep grove was cut into the crank from the bearing. I'll post pics when I can. Again you can clearly tell its from a push style clutch. I also have been thinking about its design and have ideas to fix the issue but I'm not sure I want to risk it I can't afford to nor do I want to pull it apart again for some bunk 1800 dollar junk. If I do and it works I won't be sharing the fix. Just like comp or p&l won't be repairing my engine.
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Old 02-07-2016, 11:14 AM   #27
spoolinsti05
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Default P&L competition triple disc possibly caused thrust bearing failure

Better late then never junk iPhone pics as usual




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Old 02-09-2016, 04:56 PM   #28
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Opinions?
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Old 02-10-2016, 09:49 PM   #29
mattistrouble
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Was planning on getting the P&L Tripe disc clutch but now I'm thinking about getting the Exedy Triple
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Old 02-11-2016, 06:53 AM   #30
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Was planning on getting the P&L Tripe disc clutch but now I'm thinking about getting the Exedy Triple

I'll sell you mine lol
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Old 02-11-2016, 09:32 AM   #31
mattistrouble
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Default P&L competition triple disc possibly caused thrust bearing failure

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Originally Posted by spoolinsti05 View Post
I'll sell you mine lol

The only thing that worries me is that the exedy is only rated to 766 wtq I believe, even though I probably won't make more than that lol
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Old 02-11-2016, 09:47 AM   #32
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Matt have you looked into OS Giken clutches?
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Old 02-12-2016, 07:07 AM   #33
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Default P&L competition triple disc possibly caused thrust bearing failure

Quote:
Originally Posted by funk32 View Post
Matt have you looked into OS Giken clutches?

Pretty sure they make the exedy discs to add to that my rps never did me wrong lasted a long time too!

Last edited by spoolinsti05; 02-12-2016 at 07:14 AM.
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Old 02-14-2016, 04:53 PM   #34
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Quote:
Originally Posted by spoolinsti05 View Post
Opinions?
Certainly damaged! No bluing from excess heat (that I can see). I can only suspect excessive clamp force is putting too much pressure on the thrust surface when the clutch is disengaged. Could it be start-up damage? Maybe.... Could it be lack of oiling while running? Not likely without bluing or signs of heat. What about physical dimensional differences? Possibly....causing preload between the throwout bearing and flywheel when assembled. Not enough to slip, but enough to cause thrust contact.....but heat buildup should also be evident.

EDIT: If there is bluing, it could be the last possibility.

Interesting, but I don't see a concrete cause here.

Jay
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Old 02-14-2016, 11:35 PM   #35
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Quote:
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Certainly damaged! No bluing from excess heat (that I can see). I can only suspect excessive clamp force is putting too much pressure on the thrust surface when the clutch is disengaged. Could it be start-up damage? Maybe.... Could it be lack of oiling while running? Not likely without bluing or signs of heat. What about physical dimensional differences? Possibly....causing preload between the throwout bearing and flywheel when assembled. Not enough to slip, but enough to cause thrust contact.....but heat buildup should also be evident.

EDIT: If there is bluing, it could be the last possibility.

Interesting, but I don't see a concrete cause here.

Jay

It's from pressure. No other explanation honestly. It can be from overextension also or a combination. Sure I can try to go about designing a clutch stop for a hydraulic system nothing like the directions explain and I'm not going to get into that that's my knowledge I won't be sharing. But say I take that task on and I end up with the same issue because of the pressure I'll be fairly mad about that
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Old 02-15-2016, 01:11 AM   #36
mattistrouble
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Quote:
Originally Posted by spoolinsti05 View Post
It's from pressure. No other explanation honestly. It can be from overextension also or a combination. Sure I can try to go about designing a clutch stop for a hydraulic system nothing like the directions explain and I'm not going to get into that that's my knowledge I won't be sharing. But say I take that task on and I end up with the same issue because of the pressure I'll be fairly mad about that

You had the P&L triple race with the 11lb flywheel right?
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Old 02-15-2016, 10:50 PM   #37
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Default P&L competition triple disc possibly caused thrust bearing failure

Quote:
Originally Posted by mattistrouble View Post
You had the P&L triple race with the 11lb flywheel right?

Triple disc with street flywheel. Even with the heavier flywheel you can really tell how springy the pressure plate is at first I stalled it a few times because of that. sucks it's such a nice part I want to make it work but I'm worried it'll cost me another engine
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Old 02-27-2016, 12:39 AM   #38
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Bump it
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Old 03-08-2016, 08:46 AM   #39
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So I'm debating on using this clutch again on my next build. Kinda scared to find out what will happen. If I do I will delete the clutch pedal switch this time and possibly even prime the engine oil system pre start up's it's mostly a weekend warrior anyways. Until I find a nice shell to cage then she gonna be a trackstar might even get a nice super 99
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Old 02-02-2017, 07:07 AM   #40
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any update on this? I have a P&L triple to install and would like to know if the clutch was the cause.
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Old 02-11-2017, 09:26 PM   #41
spoolinsti05
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any update on this? I have a P&L triple to install and would like to know if the clutch was the cause.
Yeah I sold it and was thinking about getting an act extreme but thinking twice as I read many post about that clutch causing thrust issues on dsm and hondas... Must be an import thing, becuase my buddy's 03 cobra had a insanely stiff spec clutch and never had an issue.

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Old 04-20-2020, 10:59 AM   #42
carlos.danger
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Quote:
Originally Posted by spoolinsti05 View Post
A heavily damaged thrust bearing on the end close to the rod. Was so bad It developed heat spots in the crank and deep groves. Kinda tells me the clutch was pushing the crank more then anything.

And I was skeptical of this due to the smaller pressure plate. The smaller plate takes more force to push the fingers open.
So you installed it incorrectly?
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Old 04-23-2020, 01:27 AM   #43
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Honestly, this all just sounds like your short block bearing tolerances weren’t set up well to begin with. Pair that with the obvious high loads encountered with the those 1/4 mile times = smoked bearings.
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Old 01-25-2021, 10:18 PM   #44
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Bump from the past. I have contacted comp clutch. A certain amount of clutch discs that where made for these p&l kits have been stamped backwards. I ran my clutch this way for a year and had almost no engagement point. Upon pulling my trans apart and working with rallispec I found a mistamped disc and comp clutch sent me everything I needed for free. If you buy the p&l kit and have the same problem i.e.

1. More jangle than average from a triple disc
2. Little to no engagement zone ( almost impossible to city drive and launch properly)
3. Any plates inner ribs are deformed and you suspect your clutch is faulty give comp clutch a call. They are awesome.
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