Technical Sporting gearbox rebuild?

[dac69er]

Has anyone rebuilt a cinq sporting gearbox before?

Mine is a bit rattly, I suspect a worn/damaged bearing.

I got 1 place quote £700 and another declined working on it.

I have pulled a Suzuki swift gearbox apart and put it back together before and that wasn't too hard.
The car isn't worth enough to spend £700 on just the gearbox so was going have a go myself if it's not too bad???

 

[porta]

I can’t see why you can’t, I did a Suzuki Santana one and that went alright

 

[rmjbn1]

Does the cinq sporting have the common c514 gearbox?

Failed input shaft bearing is common on these on 169 Pandas at least.

Is it noisy stationary in neutral? If so, does the noise go away if you depress the clutch?

There should also be an inspection hole on top of the bell housing. With engine off, stick a finger in, if it's wet and oily inside input shaft bearing and seal have probably failed.

I followed a good guide on here to replace mine when doing a clutch.

 

[dac69er]

Gearbox is already off the car as was doing the clutch anyway.

The noise is as you described and is the same as another car I had with a failed input shaft bearing.

There is no wetness, the seal appears ok.

Is that bearing alone quite easy to change?

 

[rmjbn1]

Well, bell housing has to be separated from the C514 box to get at the input shaft bearing, but otherwise not too bad.

Apparently common failure on Pandas, Puntos and 500s with ball bearings when the cage breaks up, some later Grande Puntos & Evos seem to have needle roller bearings and don't have this problem. I don't know about centos.

Here's the guide I followed:

Input shaft bearing renewal | FIAT Punto (Mk2/2b)

Hello Half-way into renewing the clutch on my punto. Have transmission off, slight bit of play on the input shaft, able to rattle it side-to-side, when gearbox in neutral and rotating shaft by hand moves freely but it sounds a bit gritty. When driving was getting a rumbling noise, checked oil...

www.fiatforum.com

 

[rmjbn1]

As gearbox is off, is there any play in the input shaft?

 

[dac69er]

As gearbox is off, is there any play in the input shaft?

Not really. Nothing in and out and the most minute amount side to side/up and down. But nothing I would worry about tbh.

There is a bit of backlash I'm the gears, but again, nothing that seems that bad.

There is nothing externally bad I can see.