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samb0rg
Joined: Thu Oct 07, 2010 8:02 am Posts: 179 Location: 2450
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 Posted: Thu Dec 29, 2011 8:41 am |
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Pulling apart a G16a, putting in new front and rear crankshaft seals. Have the gearbox off, noticed that the input shaft is worn as a result of a seized bearing.
It looks like this, at the end Picture
And I'm guessing it's meant to look like this instead.
Now, I don't have the time, money or expertise to replace the shaft (I'm assuming i'd have to split the box and get in there with everytihng little and lose-able to replace it.
Is there any way to fix the shaft from it's current position? Which is poking out of the bellhousing.
I am replacing the bearing that was there, too.
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royce

omnipotent being
Joined: Sun Jun 11, 2006 11:30 pm Posts: 17216 Location: Pluto
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 Posted: Thu Dec 29, 2011 8:44 am |
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mines like that, I just stuck another spigot bearing in and didnt bother worrying about it anymore
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Scrawny

I live here!
Joined: Tue Jan 29, 2008 10:30 pm Posts: 10528 Location: Brissie
Vehicle: Popemobile
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 Posted: Thu Dec 29, 2011 8:45 am |
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Don't worry about it 
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samb0rg
Joined: Thu Oct 07, 2010 8:02 am Posts: 179 Location: 2450
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 Posted: Thu Dec 29, 2011 11:46 am |
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A few options I have come up with/considered:
a) Don't worry about it
b) get a 'wider' bearing to essentially cover the worn par by a mm either side
c) get some liquid metal/etc to pad out the worn section, then place a standard bearing over it.
A seems easiest, then B. C seems like way to much effort.
I know it will make some noise when the car is in neutral without the clutch depressed, but is there anything else to worry about?
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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: Thu Dec 29, 2011 11:52 am |
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2 mechanic's say don't worry about it...........
Do you want a third??? 
_________________ I used to be indecisive,
now I'm not so sure.....
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want33s

az supporter
Joined: Fri Nov 16, 2007 10:30 pm Posts: 8134 Location: Sunshine Coast Qld
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 Posted: Thu Dec 29, 2011 12:09 pm |
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If you are really worried you can file it down so the bearing seat is uniform and then buy a slightly smaller ID spigot bearing.
Alternatively a custom sleeve is an option OR....... you could remove the shaft from the gearbox and have the spigot built up and turned back to original size.
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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: Thu Dec 29, 2011 12:14 pm |
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want33s wrote: If you are really worried you can file it down so the bearing seat is uniform and then buy a slightly smaller ID spigot bearing.
Alternatively a custom sleeve is an option OR....... you could remove the shaft from the gearbox and have the spigot built up and turned back to original size.
There's the third....
4th.......... it will be fine with a new bearing... 
_________________ I used to be indecisive,
now I'm not so sure.....
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fordem
Joined: Mon Apr 19, 2010 11:30 pm Posts: 2656 Location: Georgetown, Guyana
Vehicle: APK416, A6G415, A6N415
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 Posted: Thu Dec 29, 2011 12:39 pm |
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samb0rg wrote: I know it will make some noise when the car is in neutral without the clutch depressed, but is there anything else to worry about?
Think about it - when the clutch is not depressed, the pressure plate is clamping the clutch plate to the flywheel - the crankshaft & flywheel, the entire clutch assembly, including the input shaft and the pilot shaft bearing are all rotating as a single unit - why would it make a noise?
Did you know that many late model cars don't even have a pilot shaft bearing? The input shaft is supported only inside the transmission.
I think four people have already said it will be fine with a new bearing - I'm number five.
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samb0rg
Joined: Thu Oct 07, 2010 8:02 am Posts: 179 Location: 2450
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 Posted: Thu Dec 29, 2011 1:00 pm |
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Done and done. I'm not going to be 'that guy' that ignores the advice of experts.
Thanks guys, I'll update when it's all back together. 
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royce

omnipotent being
Joined: Sun Jun 11, 2006 11:30 pm Posts: 17216 Location: Pluto
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 Posted: Thu Dec 29, 2011 8:01 pm |
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I reckon vits all do it anyway, mine was on the original clutch and the spigot bearing wasnt seized
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