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alien
Joined: Wed Mar 24, 2010 10:30 pm Posts: 16343 Location: Perth
Vehicle: '92 Sierra, 1.6efi, SPOA, 31s.
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 Posted: Sun Jan 23, 2011 5:25 am |
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This is an odd one...
not had any clutch issues at all for the last 2 years since putting in a 2nd hand jimny clutch (was basically new) while doing a rear main seal leak.... anyway, yesterday i did a 100km round trip and did some high speed stuff (110km/hr down the freeway for most of it) and after getting off the off ramp, changing up gears the clutch was slipping for a counted 1-2 seconds (a lot)... if i babied my takeoffs and changes it wouldnt slip but if i changed normally it would.
now, today i took it for a drive and was dumping the clutch to see if it would slip again, and it wouldnt!?
so - time for a new clutch or would the high speed stuff possibly have heated it up or something???
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steak_knife

az supporter
Joined: Fri May 22, 2009 11:30 pm Posts: 21335 Location: Smart Ass Island
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 Posted: Sun Jan 23, 2011 6:17 am |
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Get rid of the bug & I'll tell ya...
_________________ I used to be indecisive,
now I'm not so sure.....
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alien
Joined: Wed Mar 24, 2010 10:30 pm Posts: 16343 Location: Perth
Vehicle: '92 Sierra, 1.6efi, SPOA, 31s.
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 Posted: Sun Jan 23, 2011 6:20 am |
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just squash it =)
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stocker
Joined: Wed Dec 08, 2010 7:16 am Posts: 941 Location: Shidoni!
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 Posted: Sun Jan 23, 2011 6:49 am |
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rear main again?
_________________ Stocker
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steak_knife

az supporter
Joined: Fri May 22, 2009 11:30 pm Posts: 21335 Location: Smart Ass Island
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 Posted: Sun Jan 23, 2011 6:53 am |
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 Bug's still there... 
_________________ I used to be indecisive,
now I'm not so sure.....
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alien
Joined: Wed Mar 24, 2010 10:30 pm Posts: 16343 Location: Perth
Vehicle: '92 Sierra, 1.6efi, SPOA, 31s.
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 Posted: Sun Jan 23, 2011 6:56 am |
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stocker wrote: rear main again?
interesting you say that - the rear main does appear to be jusssssst starting to weep again (no drips but you can see a colour difference in the dust around there).
Reckon oil is leaking onto the clutch?
Either way, to fix the rear main the box needs to come out anyway, so might as well put a new clutch in at the same time...
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stocker
Joined: Wed Dec 08, 2010 7:16 am Posts: 941 Location: Shidoni!
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 Posted: Sun Jan 23, 2011 6:59 am |
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sounds like a good idea... it could be the rear main weeping causing it... if like you said its only doing it for a second or two. it could just be a drop or two of oil leaking into the clutch and then burning off???
worth a look anyway. and yeah like you said probably chuck a new clutch in it...
_________________ Stocker
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BlueSuzy

az supporter
Joined: Sun May 04, 2008 11:30 pm Posts: 9716 Location: NSW
Vehicle: SJ51 LWB, SJ70 SWB
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 Posted: Sun Jan 23, 2011 7:00 am |
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Rear main leaking engine oil on clutch
Clutch old
Flywheel glazed
Clutch needs adjusting
_________________ BlueSuzy wrote: I'm over the G16b's.
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alien
Joined: Wed Mar 24, 2010 10:30 pm Posts: 16343 Location: Perth
Vehicle: '92 Sierra, 1.6efi, SPOA, 31s.
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 Posted: Sun Jan 23, 2011 7:06 am |
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steak_knife wrote: :roll: Bug's still there... 
bug removed.... ufo added.
Cheers guys =)
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zuk_244
Joined: Sun Jun 28, 2009 11:30 pm Posts: 170 Location: Wangaratta, Vic
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 Posted: Sun Jan 23, 2011 8:34 am |
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The rear main seal causing the problem sounds abit far fetched to me.
I mean the rear main is on one side of the flywheel and the clutch is on the other. If its oil on the clutch plate it could be the gearbox leaking or maybe even dripping from the bottom of the dizzy into the box.
If have a smell of the oil thats leaking to try and see if it gearbox or motor oil.
Also wipe a rag where the dizzy comes out of the motor for any leaks.
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alien
Joined: Wed Mar 24, 2010 10:30 pm Posts: 16343 Location: Perth
Vehicle: '92 Sierra, 1.6efi, SPOA, 31s.
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 Posted: Sun Jan 23, 2011 8:42 am |
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i dont have a dizzy, so we can eliminate that straight away.. i did however just go have a sniff and its definitely gear oil.
so gearbox seal?
again its the same fix though... lol might as well replace all the seals while the box is out.
- gearbox input and output
- rear main
- clutch
did i miss anything?
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zuk_244
Joined: Sun Jun 28, 2009 11:30 pm Posts: 170 Location: Wangaratta, Vic
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 Posted: Sun Jan 23, 2011 8:45 am |
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I wouldnt bother with the rear main if ya already did it, saves you taking the flywheel off. Good time for a new clutch plate and some gearbox seals tho.
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steak_knife

az supporter
Joined: Fri May 22, 2009 11:30 pm Posts: 21335 Location: Smart Ass Island
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 Posted: Sun Jan 23, 2011 8:54 am |
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zuk_244 wrote: I wouldnt bother with the rear main if ya already did it, saves you taking the flywheel off. Good time for a new clutch plate and some gearbox seals tho.
You have the box out, it's only a couple of bolt's to see behind it, well worth the effort IMO...
_________________ I used to be indecisive,
now I'm not so sure.....
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zuk_244
Joined: Sun Jun 28, 2009 11:30 pm Posts: 170 Location: Wangaratta, Vic
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 Posted: Sun Jan 23, 2011 9:01 am |
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Well if you yake it off it might be worth taking it to get the surface milled clean. itll help get all the oil off and make the surface like new.
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Lockie666

az supporter
Joined: Sat Apr 17, 2010 11:30 pm Posts: 1874 Location: Perth
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 Posted: Sun Jan 23, 2011 9:04 am |
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zuk_244 wrote: I wouldnt bother with the rear main if ya already did it, saves you taking the flywheel off. Good time for a new clutch plate and some gearbox seals tho.
I disagree, I'd be replacing my rear main while I have the box out.
_________________ helloo
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alien
Joined: Wed Mar 24, 2010 10:30 pm Posts: 16343 Location: Perth
Vehicle: '92 Sierra, 1.6efi, SPOA, 31s.
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 Posted: Sun Jan 23, 2011 9:05 am |
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i have access to a workshop that can skim brake rotors - same machine would do the flywheel wouldnt it?
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zuk_244
Joined: Sun Jun 28, 2009 11:30 pm Posts: 170 Location: Wangaratta, Vic
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 Posted: Sun Jan 23, 2011 9:15 am |
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Id say they would. I got my ring gear on the flywheel flipped awhile ago because it was starting to chew out in 1 spot. They gave the clutch surface a clean up at the same time. Dont know if it help performance but it was nice and shinny!
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inbits
Joined: Mon Sep 13, 2010 8:30 am Posts: 600 Location: qld
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 Posted: Sun Jan 23, 2011 9:17 am |
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if your going to change the clutch then you should have the fly wheel machined anyway
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Jester
Joined: Fri May 08, 2009 11:30 pm Posts: 726 Location: Adelaide
Vehicle: 1985 Suzuki MightyBoy
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 Posted: Sun Jan 23, 2011 9:39 am |
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alien wrote: i have access to a workshop that can skim brake rotors - same machine would do the flywheel wouldnt it?
nah its not the same machine, we machine rotors and drums at work, but we still have to subcon out flywheel machining
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alien
Joined: Wed Mar 24, 2010 10:30 pm Posts: 16343 Location: Perth
Vehicle: '92 Sierra, 1.6efi, SPOA, 31s.
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 Posted: Sun Jan 23, 2011 12:41 pm |
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bugger... that sucks- is your stuff turned around same-day? i'd be taking a day off work to do it so its kinda important! lol
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