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01-27-2016, 12:40 PM | #26 | |
Scooby Guru
Member#: 108051
Join Date: Feb 2006
Chapter/Region:
AKIC
Location: Oneonta, NY
Vehicle:2005 WRX STi WRB |
Quote:
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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02-07-2016, 11:14 AM | #27 |
Scooby Guru
Member#: 108051
Join Date: Feb 2006
Chapter/Region:
AKIC
Location: Oneonta, NY
Vehicle:2005 WRX STi WRB |
P&L competition triple disc possibly caused thrust bearing failure
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02-09-2016, 04:56 PM | #28 |
Scooby Guru
Member#: 108051
Join Date: Feb 2006
Chapter/Region:
AKIC
Location: Oneonta, NY
Vehicle:2005 WRX STi WRB |
Opinions?
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02-10-2016, 09:49 PM | #29 |
Scooby Newbie
Member#: 377637
Join Date: Jan 2014
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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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02-11-2016, 06:53 AM | #30 |
Scooby Guru
Member#: 108051
Join Date: Feb 2006
Chapter/Region:
AKIC
Location: Oneonta, NY
Vehicle:2005 WRX STi WRB |
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02-11-2016, 09:32 AM | #31 |
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Member#: 377637
Join Date: Jan 2014
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P&L competition triple disc possibly caused thrust bearing failure
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02-11-2016, 09:47 AM | #32 |
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Join Date: May 2010
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W. Canada
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Matt have you looked into OS Giken clutches?
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02-12-2016, 07:07 AM | #33 |
Scooby Guru
Member#: 108051
Join Date: Feb 2006
Chapter/Region:
AKIC
Location: Oneonta, NY
Vehicle:2005 WRX STi WRB |
P&L competition triple disc possibly caused thrust bearing failure
Last edited by spoolinsti05; 02-12-2016 at 07:14 AM. |
02-14-2016, 04:53 PM | #34 |
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MWSOC
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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 |
02-14-2016, 11:35 PM | #35 | |
Scooby Guru
Member#: 108051
Join Date: Feb 2006
Chapter/Region:
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Location: Oneonta, NY
Vehicle:2005 WRX STi WRB |
Quote:
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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02-15-2016, 01:11 AM | #36 | |
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Join Date: Jan 2014
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Quote:
You had the P&L triple race with the 11lb flywheel right? |
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02-15-2016, 10:50 PM | #37 |
Scooby Guru
Member#: 108051
Join Date: Feb 2006
Chapter/Region:
AKIC
Location: Oneonta, NY
Vehicle:2005 WRX STi WRB |
P&L competition triple disc possibly caused thrust bearing failure
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 |
02-27-2016, 12:39 AM | #38 |
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Member#: 108051
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Vehicle:2005 WRX STi WRB |
Bump it
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03-08-2016, 08:46 AM | #39 |
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Chapter/Region:
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Vehicle:2005 WRX STi WRB |
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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02-02-2017, 07:07 AM | #40 |
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Join Date: Dec 2005
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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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02-11-2017, 09:26 PM | #41 |
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Member#: 108051
Join Date: Feb 2006
Chapter/Region:
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Location: Oneonta, NY
Vehicle:2005 WRX STi WRB |
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.
Last edited by spoolinsti05; 02-11-2017 at 09:32 PM. |
04-20-2020, 10:59 AM | #42 | |
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Join Date: Jul 2013
Location: California
Vehicle:2015 WRX STi WRB |
Quote:
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04-23-2020, 01:27 AM | #43 |
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RMIC
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Vehicle:1995 Subaru Lego |
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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01-25-2021, 10:18 PM | #44 |
Scooby Newbie
Member#: 286170
Join Date: Jun 2011
Chapter/Region:
MAIC
Location: Johnstown
Vehicle:2006 WRX |
Bump
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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