gearbox recondition

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silvermiata
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gearbox recondition

Postby silvermiata » Tue Oct 30, 2007 12:02 pm

Hi guys,

i have been having the whining noise from the gearbox, and most probably it is the bearings (1, 2 and 3 rd gear whine)... it is getting a little worst for the last month or so...

Do you guys know where i can take it in sydney for reconditioning and how much i should be looking at paying? I can just take the gearbox out myself and take it to the shop for the reconditioning...

i do not want to get another box as i have no other problems with this one other than whining...

thanks in advance...
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skimad
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Postby skimad » Tue Oct 30, 2007 2:06 pm

At a guess I would say Mania should be able to do it?
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Benny
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Postby Benny » Tue Oct 30, 2007 5:36 pm

I wouldn't trust a normal mechanic to do up a gearbox.
Only a gearbox specialist can really do a good job.
If you've ever taken apart a gearbox, you'll know what I mean.
Even in big dealerships, they either have a specialist in house, or send their gearboxs to a local expert. they wouldn't let just any mechanic have a go at it.

Where abouts are you silvermiata?

There is a very good gearbox guy in Hornsby Heights that Mania uses.
He installed my Guru diff for me on their recomendation.

As a young lad, a friend of mine and myself decided that we would re-build the gearbox in my friend's mother's car as all the synchros were worn out.
We got the box out OK and then we started to pull it down.
I must have removed something I shouldn't have, and half the gearbox innards shot off all over the place with absolutely no way that we could even fathom how to put it all back.
We ended up collecting all the pieces and taking to a gearbox guy in Mosman, but I think he closed down about 30 years ago.

In many cars, the gearbox is worth as much, if not more than an engine, and it is far more complicated than an engine too with thousands of parts all put together very precisely.
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Postby manga_blue » Tue Oct 30, 2007 6:43 pm

Changed the gearbox oil lately?
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Locutus
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Postby Locutus » Tue Oct 30, 2007 11:40 pm

depending on your mileage it would be a good idea to have the syncros inspected while the box is out.

so does anyone have a rough idea about cost?

my synchros are pretty shot - they don't always play ball despite me feeding them new synth oil. should i save up for a rebuild or swap for a 2nd hand box? is buying a 2nd hand box as much of a lottery as it sounds?
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silvermiata
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Postby silvermiata » Wed Oct 31, 2007 9:57 am

Benny, I am in Sydney...

Manga, I guess i will go home and change my gearbox oil tonite and see if there is any difference in whining....

Does anyone have any idea on how much i should be looking at for reconditioning?
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silvermiata
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Postby silvermiata » Fri Nov 09, 2007 11:24 am

Hi Slugoid,

Could you tell me where you are located and which mechanic did they send your box to? i would like to do this sometime soon...
thanks...
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EGG80X
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Re:

Postby EGG80X » Fri Nov 09, 2007 11:40 am

Benny wrote:There is a very good gearbox guy in Hornsby Heights that Mania uses.


George,have you got the name of the place and the contact details?
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Bevan
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Postby Bevan » Fri Nov 09, 2007 1:06 pm

Could be your diff too. Diff noise sounds like it's coming from the gearbox. Change the oil in that too. :)
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Fatty
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Re:

Postby Fatty » Fri Nov 09, 2007 2:46 pm

Bevan wrote:Could be your diff too. Diff noise sounds like it's coming from the gearbox. Change the oil in that too. :)


yep my "gearbox" noises went away when i replaced the diff.
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Re:

Postby manga_blue » Fri Nov 09, 2007 3:55 pm

Fatty wrote:
Bevan wrote:Could be your diff too. Diff noise sounds like it's coming from the gearbox. Change the oil in that too. :)


yep my "gearbox" noises went away when i replaced the diff.


... and then diff noises can be caused by the wheel bearings ...

... and the wheel bearing noises can be caused by the tyres ...

You can spend weeks on this.
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Postby Garry » Mon Nov 12, 2007 9:05 am

The Pirelli P6000's on my NA made very authentic stuffed wheel bearing noises.
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Benny
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Re:

Postby Benny » Mon Nov 12, 2007 10:17 am

EGG80X wrote:
Benny wrote:There is a very good gearbox guy in Hornsby Heights that Mania uses.


George,have you got the name of the place and the contact details?


Sorry to say, I don't have his details, as he put my diff in about 5 years ago.
However, a quick call to Mania should sort it out, as they use him all the time.
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JBT
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Re:

Postby JBT » Mon Nov 12, 2007 10:33 am

Garry wrote:The Pirelli P6000's on my NA made very authentic stuffed wheel bearing noises.

All tyres did it for me on our NA but only when the roof was up. Quiet at all speeds up on a hoist or with the roof down though.
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Postby davamb » Tue Nov 13, 2007 6:42 pm

Have had my car at a certain reputable MX5 expert down Ringwood way the last week to have a couple of dings repaired. Asked them to have a drive and listen to the gearbox which is making a grinding noise under load in 4th and top. They reckon the 'box is stuffed and $880 for a fully reconditioned replacement, plus another $200 'or so' for the labour. That's about $1200 all up when GST's included. (Don't ask me how they work out GST for a reco part. :?: ) Pretty stiff as I'm pretty sure they're also going to recommend a new clutch whilst they're at it.
Maybe an overhaul's a better option. Slugoid, how much did they hit you for labour to get the gearbox in and out?
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