Hello chaps, I've done this on both the Twinspark and the 3.0 which are near identical I think, but it's not an easy question to answer as I don't know your spannering skills.
From memory (If anyones done this more recently please jump in!) -
- Get the car as high as possible
- Remove centre exhaust section (This can be a total b@stard if it's old, particularly on the 3.0 V6- you may destroy it getting it off.
- Mark the propshaft in relation to the clutch yoke and disconnect the propshaft from the clutch yoke (If v6, remember to only turn the prop in the direction of engine rotation or the cambelt may slip).
- Undo and remove the six bolts securing the crossmember to the body, this will drop the nose of the transaxle down.
- This may give you enough room to get at the Gearbox mounts, if it doesn't jack the back of the transaxle to drop the front lower.
- The Gearbox mounts are secured to the crossmember with allen bolts, and secured to the gearbox casing with standard bolts - the gearlinkage runs through here too. It should be fairly obvious what need removing; just remember to lay it all out logically.
- Throw the old one's in the bin, and swap in the new ones, and re-assemble.
This is all a pre-amble to a clutch job which is described here - http://www.lalosgarage.com/Tech/Mila...lfaClutch.html
, but note you do NOT have to remove the rear box and I've never strapped the Flexible coupling (Guibo in colonial english) either. Neither do you need to remove the roll-pin from the linkage as you are not going that far.
You MAY be able to do this without disconnecting the prop, but I think it stops the transaxle from dropping far enough to gain access, besides it pretty easy to remove the prop.
If everything (Particularly the damn exhaust) comes off ok you could do this in 1/2 a day DIY, an Alfa Specialist should be quicker. I'd have a good look at ALL of the flexible couplings and centre bearing while you are in there because you need to remove all the above gubbins to do these so you may want to do those at the same time.
Hope this reads ok, as I say this is from memory so if anyone else can add to this, so much the better.