Hi all, I work in the motor trade and we get loads of magnas in with stuffed gearboxes. We sublet them to the tranny place and most of them are stuffed due to a broken spring that ends up chewed up by the front oil pump. I wouldnt mind having a go at fixing one myself, but I wouldn't tackle it without a shop manual. Any idea where I could get hold of this kind of stuff or is it like gold dust?

Classic Magna wave spring failure.

What's an example of loads of Magnas with stuffed autos?

Part of the issue with the expensive repairs of these failures is the complete disassembly and inspection of the box - looking for bits of debris and the damage these bits have caused elsewhere in the box. In one of my cars, I think the torque convertor next needed to be remanufactured or exchanged.

It certainly makes a mess of that transmission oil pump when the wave spring jams the stator and rotor! (our repairers gave us our broken pumps back, for use as expensive paperweights).

The experience to know what damage internally is superficial, and what is critical is part of the deal, I guess. There must be trade manuals, I guess - I know my local tranny place didn't source spares from Mitsi, but got after-market supplies - AND they knew to use a single-layer thicker wave-spring instead of the dud 3-layer spiral bugger.

EDIT: Typo above, it was the Torque Convertor NECK that pieces of broken oil pump frakked in my KJ.

Sigh, he asked for a workshop manual... Not the problem.

Here you go dude: http://www.lisho.net/?page_id=3

Cheers life. That's exactly what I was after. :-)

SIGH. My mistake. Sorry to try to assist.

To be even more explicit: the point of my post above was that pulling apart a box to replace the wave spring, and substituting new oil pump partswould NOT be a good plan.
The shattering oil pump gears will spread debris throughout the box to a greater or lesser extent. If you do not pull-down the whole box and inspect, there is a risk you will miss pieces of metal floating around and causing more damage in future.

The point of my post was to gently suggest that this might be a case where the skill and experience of a specialist is warranted.

I'd hate to think of another member going thru the drama of pulling transmissions in and out constantly, with continual expensive failures.

Oh, and (sigh) Dean, I'll just forget my plan of offering you cash money for any of your stuffed manual gearboxes. <sigh>

I would do a full strip anyway, hence wanting the shop manual.