Gearbox guru needed.
Submitted: Sunday, Nov 23, 2003 at 20:55
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Kev - (Cairns,QLD)
Just a question to anyone who knows abit about drivelines.
We recently broke the teeth of the input shaft & lay shaft on the Hilux & when we removed the box we found that the spigot bearing (bush between the input shaft & flywheel/crankshaft) was missing from the last guy who removed the box earler.
Id like to know what is the likely outcome for not installing the bush ?
Would this have any effect on overall reliability ?
Cheers,
Kev.
Reply By: mik*2 - Sunday, Nov 23, 2003 at 21:05
Sunday, Nov 23, 2003 at 21:05
if there isn't a spigot bearing, there is no support for the input shaft. Then of course there will be the problems you have now. It would also put strain on the input shaft bearing. I would suspect that when the clutch plate is free(when clutch is depressed and pressure plate releases)it wouldn't run true and increased wear would result. There are a miriod of symptoms. Easiest thing to do is install it all correctly and never have the problems.
You wouldn't want in the middle of nowhere and thinking to yourself, I hope that spigot bearing I didn't fit will be OK. eh
cheers
mike
AnswerID:
38217
Follow Up By: Kev - (Cairns,QLD) - Sunday, Nov 23, 2003 at 21:18
Sunday, Nov 23, 2003 at 21:18
Im defenatly not thinking about not putting one in, its just we had the g/box bearings replaced 2-3 months ago & it looks like the guy who did it didn't replace the bush.
So im just wondering if this has contributed to the input gears failing.
By the way we have a Holden V6 in the Hilux & realise the gears failing because of this is common, just never had a problem before the bush was missing.
FollowupID:
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Follow Up By: Truckster (Vic) - Sunday, Nov 23, 2003 at 21:27
Sunday, Nov 23, 2003 at 21:27
its just we had the g/box bearings replaced 2-3 months ago & it looks like the guy who did it didn't replace the bush.
take it back to him to get him to rebuild it again free of charge!
FollowupID:
27733
Follow Up By: Kev - (Cairns,QLD) - Sunday, Nov 23, 2003 at 22:04
Sunday, Nov 23, 2003 at 22:04
Well thats why im trying to determine if the problem was caused by the missing spigot bearing or just from the V6 conversion (done 2 years ago).
BTW- the spigot bearing was left between the cluch plate & the flywheel untill it broke down to bits from being bounced around.
+ we already have taken the Hilux back to him 4 times since he did the bearings, i could write a list of the small problems it has had since then so we realy don't want to go through all that bleep again.
Anyone from
Cairns that would like to know who to avoid when needing gearbox work done can email me - kev5@austarnet.com.au
FollowupID:
27737
Follow Up By: Member - DOZER- Monday, Nov 24, 2003 at 07:47
Monday, Nov 24, 2003 at 07:47
Outerlimits has this in the 4 sale section :-)
My annoying g52 gearbx is still sittn here in the shed . It`s in good condition- no funny noises, shifts fine, it`s just in the way! $200.00 and you can have it. I`m on the central coast NSW.wheredayathinkwer mike?
FollowupID:
27751
Reply By: Member - DOZER- Monday, Nov 24, 2003 at 07:43
Monday, Nov 24, 2003 at 07:43
Hi Kev
No support of the input shaft at the motor will invariably end up stressing the teeth on the input gear, because the bearing that the input shaftruns on is only made to cope with radial forces. You would have probably felt vibration coming from there, due to misalignment of clutchplate clamped to flywheel, which would have made the input gear run out of found aswell...not good.
Have never heard of this happening in a v6 conversion b4, so take it all in to the repairer, and ask nicely for some assistance. We are all human aftter all.
Andrewwheredayathinkwer mike?
AnswerID:
38237
Follow Up By: Kev - (Cairns,QLD) - Monday, Nov 24, 2003 at 08:04
Monday, Nov 24, 2003 at 08:04
Some people are good at what they do & some are just rough as guts !
Missing nuts & bolts
Rounded & stripped bolts
Used the old gaskits
Missing important parts (spigot bush)
Didn't clean & re-grease any parts
Gives the car back without it working correctly
FollowupID:
27753
Follow Up By: Foss - Monday, Nov 24, 2003 at 10:37
Monday, Nov 24, 2003 at 10:37
G'Day Kev
Like everyone else said, spogot bush missing loads up the front bearing and put angular force on the gear teeth, quite likely to break them. Causes vibrations, excessive heat, seal failure ETC.
Having read what you just wrote my guess is that the bloke didn't have a dummy shaft to line up the clutchplate with when he was bolting it up to the flywheel, which whould have made getting the box in extremely difficult, so he just left it out. That's a pretty sad thing for a mechanic to do. I'm assuming the bloke is a mechanic ? If you don't get any joy out of him Small Claims will help you. I've had the pleasure of this trip before, keep records and take photos.
Good luck.
FollowupID:
27767
Reply By: David N. - Monday, Nov 24, 2003 at 10:20
Monday, Nov 24, 2003 at 10:20
Sounds like the small claims tribunal should be your next port o' call.
Maybe you could get somebody else to fix the gearbox, with a record of the missing bush etc and then hit him with the repair bill??
There's nothing worse than dodgy mechanics who then refuse to fix their own problems.... gives ALL mechanics a bad name.
AnswerID:
38244
Reply By: mik*2 - Monday, Nov 24, 2003 at 10:27
Monday, Nov 24, 2003 at 10:27
a reputeable mechanic DOES NOT forget to install a spigot bearing when they have done a gearbox overhaul.....
mike
AnswerID:
38245
Reply By: howesy - Monday, Nov 24, 2003 at 19:05
Monday, Nov 24, 2003 at 19:05
Sometimes if the bearing separates the outer section can be more or less fused in position and be a real bastard to get out. I suspect that this may be why he didn't put one in Have a close look when you buy the new bearing. Size it up. Anyway I'm with you leave it out and save some money and stuffing aroud, I'm sure the mechanic wouldn't mind another lump of cash to rebuild your box again in twelve months after it stresses the spiggot bearing enough to allow movement which loads up your input and lay gears enough to crack or break teeth. In other words get it done big boy. And get up the idiot who left it out in the first place.
AnswerID:
38284