Throw out bearing?

Submitted: Sunday, Mar 08, 2009 at 10:44
ThreadID: 66631 Views:4496 Replies:3 FollowUps:6
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G'day all, I think my throwout bearing in the triton might be on the way out. Can any one tell me the signs and any funnies that can help me pin point that it is it? At the moment it is making a noise as I let the clutch out and start to drive forward and remains for a few seconds. also the noise seems to be worse with more weight in the car or changing gears up hill. So does it sound like I'm on the right track?
cheers rynoat
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Reply By: Member - Mark G Gulmarrad - Sunday, Mar 08, 2009 at 11:14

Sunday, Mar 08, 2009 at 11:14
Rynoat

if its a thrust bearing you should get........clutch pedal pushed in,no noise

clutch pedal out,noise.

AnswerID: 352888

Follow Up By: Notso - Sunday, Mar 08, 2009 at 11:21

Sunday, Mar 08, 2009 at 11:21
I would have thought it was the opposite as the bearing only comes into play when you put your foot on the clutch?
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FollowupID: 621077

Follow Up By: Member - Mark G Gulmarrad - Sunday, Mar 08, 2009 at 11:32

Sunday, Mar 08, 2009 at 11:32
Notso

had a ute once that only rattled when the clutch was out......go figure?
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FollowupID: 621080

Follow Up By: Foxhound (WA) - Sunday, Mar 08, 2009 at 12:10

Sunday, Mar 08, 2009 at 12:10
Notso,,You are quite right,with the clutch depressed you will get noise as the bearing is then under load. When the clutch is out the bearing is just sitting there but sometimes will rattle if it is loose on the clutch fork or has some wear. From the symptoms stated on the post I would say the problem is with the spigot bearing in the flywheel.
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FollowupID: 621084

Follow Up By:- Sunday, Mar 08, 2009 at 12:41

Sunday, Mar 08, 2009 at 12:41
Cheers for the info. Foxhound if it is the spigot bearing would the probelm be fixed with a new clutch kit?
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FollowupID: 621089

Follow Up By: Foxhound (WA) - Sunday, Mar 08, 2009 at 13:34

Sunday, Mar 08, 2009 at 13:34
The spigot bearing is not supplied in the clutch kit but can usually be obtained from a bearing service and only cost a few dollars. The gearbox and clutch have to be removed to replace this bearing so it would be advisable to closely inspect the clutch and throw out bearing and renew same if there is any doubt with them. The spigot bearing only operates when the gearbox is in gear and the clutch is being released. As soon as the clutch reaches friction point the bearing becomes stationary as the gearbox output shaft that is located into the spigot bearing and is splined to the clutch plate becomes one with the flywheel.
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FollowupID: 621102

Follow Up By: Member - Phil G (SA) - Sunday, Mar 08, 2009 at 16:54

Sunday, Mar 08, 2009 at 16:54
Mark, the noise you describe happens when the thrust bearing wears a groove in the forks of the diaphragm spring on a vehicle that runs with zero freeplay. The bearing is good, but the groove causes the noise when the pedal is up. Typical of Toyotas.
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FollowupID: 621129

Reply By: Member - Chris & Debbie (QLD) - Sunday, Mar 08, 2009 at 13:16

Sunday, Mar 08, 2009 at 13:16
I would be checking the universal joints.
If it was the throw-out bearing it would make a noise when you depress the clutch and if spigot, will only make a noise when the clutch is disengaged.

Chris
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AnswerID: 352903

Reply By: Member - reggy 2 (VIC) - Sunday, Mar 08, 2009 at 22:50

Sunday, Mar 08, 2009 at 22:50
might be front bearing in gearbox as you say under load when not in direct drive causes bearing to rumble or dry sound sounds like the box has to come out anyway
good luck
AnswerID: 352999

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