An A series gearbox is fairly easy to pull apart. You would replace all the
bearings in the box (some places like CBC will have a kit) but it is usually
just as easy and more economical to pick up another box. You might find a 5
speed from the Sunny wagon for ~$150 from a wrecker and I would think a
120Y/Sunny 4 speed box would be ~$100 these days.
The idler shaft or as it is also known as the lay gear has a bearing at each
end, one is located in the carrier plate and the other is in the casing
adjacent to the input shaft bearing. The lay gear passes through the carrier
plate and the reverse idler gear is located on the end and secured with a
circlip.
Pretty simple design these but if you've never pulled a gearbox down I'd
recommend that you find a friend who has to run you over the basics. I can
scan and send you the workshop pages direct for the 120Y 4 speed box
(tomorrow)
regards
terry
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of JH
Sent: Tuesday, 25 July 2000 4:43 PM
To: [EMAIL PROTECTED]
Subject: Re: 120Y g/box bearing probs.
Sounds like you know what your talking about.
Where is the bearing on the idler shaft that you speak of?
Is it hard or expensive to replace?
TIA
Jess
----- Original Message -----
From: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, July 24, 2000 7:16 PM
Subject: Re: 120Y g/box bearing probs.
> Jes,
> The input bearing is at the front of the gearbox, there isn't a main
bearing as
> such in a gearbox. if the gearbox growls in all gears except 4th (straight
> thru) then the bearings most likely to be crook are the idler shaft. The
noise
> is usually pretty aweful when these are gone. If the growl goes away when
you
> depress the clutch then the throw out bearing may be the culprit. Another
> bearing that can growl if it's shot is the spigot, this is a fairly
distintive
> screach rather than a growl so i wouldn't rate this high in probability.
>
> regards
>
> Terry (noises are the hardest problem to diagnose on the net)
>
> > Is the main bearing the bearing behind the throwout bearing in the
standard
> > 4 speed manual 120Y g/box.
> >
> > The g/box growls in all gears and in neutral as well.
> >
> > TIA
> > Jes
> > ________________________________________________________________________
> > Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com
> >
> >
> >
>
>
> ----------------------------------------------------------------
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>
>
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