General M32 Gearbox in t-jet 150

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General M32 Gearbox in t-jet 150

I think that is not the solution.

As I can see on ePer, 2 bearings were replaced with new part number in 2010.

Repl. date Replaced Replacing Description
14.04.2010 55565321 55574101 BEARING
14.04.2010 55574104 55181941 BEARING
 
From what I've read, torque seems to play a big part; M32 is designed to work below 320nm (hence the name "M32").

Also from what I've read the gearbox is considered not-serviceable, that's why it is not in the regular maintenance. I guess it is designed to last about the average age of the car, but obviously that doesn't exactly work :)
 
T-Jet has 220Nm.

So, someone has to get fired :)

And yes, when they noticed the problem, Fiat should send some info to service according to this.

Because, it is cheaper to replace some parts on time. And gearbox isnt't cheap.
 
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Main thing with the M32 is not to accelerate in 6th gear, change down to 5th to accelerate and to only ever cruise in 6th.

When I got my M-Jet sport I had it looked over and was advised the clutch was 'about to go' about 30k miles (9 months) later it did go so I dont think it did too bad. The unfortunate thing about my car was the previous driver must have been a fan of slipping the clutch.
 
Good point.

But car has enough torque to acc in 6th :)

here is the list of changes
for t-jet 150

Code:
Repl. date Replacing Replaced Description 
21215/20
14.04.2010 55574101  55565321 BEARING      58,97€
14.04.2010 55574104  55181941 BEARING      60,94€
           55181940      -    BEARING      63,89€
14.04.2010 55574107  55188083 BEARING      61,73€
           55181940      -    BEARING      63,89€
14.04.2010 55574107  55188083 BEARING      61,73€
21220/20
21.04.2010 55572486  55563923 BEARING      68/45€ x2
======================================================
NTN-SNR reference           OE reference      Position    Situation
EC.42192.Y.S02.H206 FIAT, VAUXHALL : 55188083 CTOEMB       AS1 
                    FIAT, VAUXHALL : 55574107
EC 42217 S01 H206   FIAT, VAUXHALL : 55180130 G            DIFAV 
                    FIAT, VAUXHALL : 55563923
                          VAUXHALL : 55572486
EC.42310.S01.H200   FIAT, VAUXHALL : 55574101 CTEMB        AP 
EC.43082.S01.H206   FIAT, VAUXHALL : 55181941 CTOEMB       AP 
                    FIAT, VAUXHALL : 55574104
                          VAUXHALL : 55585665
 
Good point.

But car has enough torque to acc in 6th :)

Yes but 6th gear is 'synthetic' (so I have heard) and accelerating using 6th gear all the time can cause stress and excessive ware on this 'synthetic' gear causing the gear to fail or cause a whine etc. Someone posted about it the other week. Cant remember who it was though.
 
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Yes but 6th gear is 'synthetic' (so I have heard) and accelerating using 6th gear all the time can cause stress and excessive ware on this 'synthetic' gear causing the gear to fail or cause a whine etc. Someone posted about it the other week. Cant remember who it was though.

Doesn't sound right to me, I'd like to know how they've found this out.
 
The problem is not the gears, its the bearings at the end of the shaft 5th and 6th gear run on, they are simply not up to the job.
The bearings become noisy and if left start to wear to the degree it lets the shaft move about, this chips pieces out of the gears damaging them, ultimately punching a hole in the gearbox casing.
I have seen my box in bits and I can tell you there is nothing synthetic about the gears, its just a poor design.
 
Yes but 6th gear is 'synthetic' (so I have heard) and accelerating using 6th gear all the time can cause stress and excessive ware on this 'synthetic' gear causing the gear to fail or cause a whine etc. Someone posted about it the other week. Cant remember who it was though.

That's actually pretty good to have in mind and also makes a lot of sense...6th is indeed only for cruising and it doesn't hurt to shift down for acceleration.

From what I know about gearboxes (which is not much), too "economy" driving is bad for gearboxes...
 
The problem is not the gears, its the bearings at the end of the shaft 5th and 6th gear run on, they are simply not up to the job.
The bearings become noisy and if left start to wear to the degree it lets the shaft move about, this chips pieces out of the gears damaging them, ultimately punching a hole in the gearbox casing.
I have seen my box in bits and I can tell you there is nothing synthetic about the gears, its just a poor design.

That would explain everything. If the bearings are not rated for this job and go on the shaft that has 5th and 6th only (per the link previously posted), that would certainly explain why it happens in 5th and 6th first, and if left untreated, it happens in all other gears as well.

I'm somewhat relieved to know that the bearings were probably changed in 2010, but I will still keep my ears open because obviously if you catch it early on and replace the bearings with proper ones, the gearbox will be fine.
 
I think with most things that if you ignore a sound for long enough, it'll lead to lead to a bigger problem! :)

I actually think I might go for it. If I do, the first thing I'll do is change the gearbox oil.

I pretty much have to make a decision tomorrow.
 
That's actually pretty good to have in mind and also makes a lot of sense...6th is indeed only for cruising and it doesn't hurt to shift down for acceleration.

From what I know about gearboxes (which is not much), too "economy" driving is bad for gearboxes...

Good point.

Hi five for ecology.

I drive according to eco:drive advices.

So, after all, I'm awarded with gearbox problem.

Anyway, in any case, it's not acceptable that you have problem with gearbox bearing on 50 000KM. AMEN!

Russian M32 calls crystal box.

http://translate.google.com/translate?sl=ru&tl=en&js=y&prev=_t&hl=en&ie=UTF-8&u=http%3A%2F%2Fwww.bravoclub.ru%2Fforum%2Fshowthread.php%3Ft%3D1623%26page%3D3&edit-text=&act=url
 
Which brand is the best for gearbox bearings? (SNR, TIMKEN, NSK . . .)
 
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