XM V6 Gearbox Rebuild...

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CitroJim
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XM V6 Gearbox Rebuild...

Post by CitroJim »

It's started :-D The first work toward refurbishing Chris570's XM V6 gearbox has begun..

First job was to hoist it on the engine crane and give it a good wash after removing many ancillaries. here it is fresh from its bath:

Image

I was hoping Chris was going to bring it to me sparkly clean but alas, no such luck.

And here it is all ready for the taking apart...

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I already know one problem and that's the oil filter; it's as blocked as a blocked thing. I found out when I removed the cooler and oil gushed out from the main gallery from the pump. By now that gallery should have been empty - having drained back via the filter.

Another dead give-away was little oil in the torque converter and no oil running out when I tipped it on end just before I took the second photo. A good one will fairly gush when tipped on it's side like that...

The torque converter neck bearing is good and as it was not noisy when it died, or not excessively so, I'm hoping that it's not badly damaged.

More news as it happens...
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Chris570
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Re: XM V6 Gearbox Rebuild...

Post by Chris570 »

:D :D :D :D

Thanks Jim
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DickieG
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Re: XM V6 Gearbox Rebuild...

Post by DickieG »

Its amazing the things some people get up to in their lounge :lol:
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Chris570
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Re: XM V6 Gearbox Rebuild...

Post by Chris570 »

DickieG wrote:Its amazing the things some people get up to in their lounge :lol:
Well for the amount of time that Jim spends in there (hiding from the police) it pretty much is his lounge
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CitroJim
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Re: XM V6 Gearbox Rebuild...

Post by CitroJim »

:rofl: :rofl:
addo
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Post by addo »

I'm waiting for the next instalment. Sort of wish I had one to play along with.

What's a rebuilt converter cost there?
Deanxm
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Re: XM V6 Gearbox Rebuild...

Post by Deanxm »

About £100 is the norm last time i checked for a reconditioned unit.

D
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CitroJim
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Re: XM V6 Gearbox Rebuild...

Post by CitroJim »

Deanxm wrote:About £100 is the norm last time i checked for a reconditioned unit.

D
Who was that with Dean? Mackie Transmissions in Glasgow?
addo
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Post by addo »

That's a very good price by our standards - probably cheaper than local by a margin exceeding freight cost. Might hit them up for an Aisin Warner unit to suit Volly 850.
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CitroJim
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Re: XM V6 Gearbox Rebuild...

Post by CitroJim »

She's coming apart and it's looking good...

Here's the diff housing:

Image

A collection of internals...

Image

And the converter housing showing the oil filter...

Image

Note the hedgehog-like swarf collection magnets on the oil filter! Nothing to get too anxious about. Quite normal actually...

Basically, everything looks good so far, all clutches look OK, all bearings look OK and there's very little debris in it. A bit of friction material but no powdered alloy as I've seen in worse ones...

I've not looked at the oil pump yet but I don't expect to see Armageddon in there either...

My original diagnosis of a breaking up lock-up clutch in the torque converter still holds and that is given some additional credence by it being rusty - indicating it's been jolly hot recently...

EDIT: the valve block looks fine too...

If all goes well tomorrow I'll have the oil pump in bits...
Deanxm
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Re: XM V6 Gearbox Rebuild...

Post by Deanxm »

Its this place they look prety good and have parts diagrams of practicaly every box in existance.

Looking good Jim, i bet Chris cant wait for you to get it done :-D

D
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CitroJim
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Re: XM V6 Gearbox Rebuild...

Post by CitroJim »

Thanks Dean,

I'll be on the blower to them in the morning :)
Carsten S
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Re: XM V6 Gearbox Rebuild...

Post by Carsten S »

CitroJim wrote: My original diagnosis of a breaking up lock-up clutch in the torque converter still holds and that is given some additional credence by it being rusty - indicating it's been jolly hot recently...
Nice work, Jim! :)

What is inside that converter? It is afaik impossible to open up for inspection, or?

Even if the lock-up clutch breaks, why don't the converter continues as "normal" converters?
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CitroJim
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Re: XM V6 Gearbox Rebuild...

Post by CitroJim »

The torque converter is a sealed unit Carsten and can't be opened except with a hacksaw :lol: :lol:

Basically, treat it as a sealed unit and have it refurbished by a specialist...

I've seen some pictures of what they look like inside but if you picturte the lock-up clutch as being very similar in looks to a normal manual gearbox clutch ythen you'll not be far out...
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Chris570
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Re: XM V6 Gearbox Rebuild...

Post by Chris570 »

can i have it back now please