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| jimmers | Clutch Problem? | ||
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Senior Guru
 
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Coming home yesterday I got a weird grinding sound when I would push the clutch in to change gears. The shifter would also shake a bit. The noise would go away as soon as I let the clutch out. I got home and went through every gear on the driveway a few times. It only did it 3 times. I can shift without any issues, and the clutch pedal works as it should.
I tried it again about an hour later but it didn't happen. I drove the car around the block a few times and it was fine. Any ideas what is wrong? The clutch and tob was replaced 2 years ago. I find it weird that the problem went away. Can something happen when it's hot? Master cylinder is full. |
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Posted on: 2010/9/13 18:23
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| bogus | Re: Clutch Problem? | ||
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Grand Imperial Pooh-Bah
 
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Well... failing slave could explain it.
The fluid level is up, so that's a non-issue - for now! I am wondering about the fork/throwout bearing relationship. If the fork slipped out of position, it would make noises, but not when the clutch is engaged. So... throwout bearing sounds likely. It could be early signs of dying. |
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Posted on: 2010/9/13 19:03
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The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me |
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| jimmers | Re: Clutch Problem? | ||
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Senior Guru
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Quote:
Are there anyways to test the throwout bearing without taking the tranny out and looking at it? Id like to get it fixed, but at the same time it's not doing it anymore so I'd hate to take it in and not find anything wrong. |
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Posted on: 2010/9/13 19:47
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| Mekanic | Re: Clutch Problem? | ||
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Registered Vendor
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noise with it in neutral, idle, clutch out that goes away with clutch in is usually the indicator of a TOB.
I'm with bogus on the fork or a failing slave |
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Posted on: 2010/9/13 22:25
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~Rich Polo LT4 Yea tho I walk through the valley in the shadow of rice, I shall fear no turbo, for torque art with me. |
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| jimmers | Re: Clutch Problem? | ||
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Senior Guru
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I just went for another drive. For the first 20min it was fine, after that it happened a few times. It happens only when the clutch is pushed down.
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Posted on: 2010/9/13 23:13
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| 1Fast04Vert | Re: Clutch Problem? | ||
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Elite Guru
 
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That sure sounds like the throw out bearing is going out, but maybe not. In normal driving it should just be sitting there doing nothing, so why is it only acting up after driving for a while? Getting hot? That could only be if it is not fully releasing or binding on the trans input shaft.
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Posted on: 2010/9/13 23:28
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2004 Vert. 475hp. Built by Vengeance Racing |
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| BillH | Re: Clutch Problem? | ||
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The Stig Moderator
 
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Quote:
Yea and possibily the bearing is touching the fork once in a while. You can checl for feel by pushing the clutch in with your hand until you feel resistance, does it vibrate then? To check your slave cyl, find a level place where the car won't roll. Clutch in (trans in 1st), hold to for 30 seconds or more. If the car starts to move even a little, something's leaking (by the o-rings). |
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Posted on: 2010/9/13 23:36
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| jimmers | Re: Clutch Problem? | ||
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Senior Guru
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Thanks I'll give this a try tomorrow. I guess either way the transmission will need to be dropped. |
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Posted on: 2010/9/14 3:32
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| movnviolation | Re: Clutch Problem? | ||
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Guru Newb
 
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Not to long ago, I replaced a t/o bearing and clutch in my 89. The t/o bearing and clutch assembly only had 5k on the set. The housing of the bearing seperated and came apart.
The t/o bearings that come with clutch assembly's are junk. I ordered a new clutch set and also ordered a Delco t/o bearing (pricey). Comparing the one that came with the set, with the Delco, The Delco was visibly beefier than the Chinese t/o bearing. Just something to keep in mind! |
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Posted on: 2010/9/14 4:20
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Mods AFR 180 comp. heads w/ heavy springs. TPIS ZZ409 cam w/ 1.6 roller rockers, TPIS long tube headers, Miniram, 52mm throttle body, 24 lb Bosch injectors, Level V TPIS chip |
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| CentralCoaster | Re: Clutch Problem? | ||
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Senior Guru
 
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Good to know! I've never seen a Delco bearing.
I have bought several LT1 clutch sets and ZR1 clutch sets, and although the box and material quality looks similar, the ZR1 bearings looked slighty different at the flange (the weak point). |
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Posted on: 2010/9/14 5:01
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