Lancia Motor Club

General => General Chat => Topic started by: brian on 16 June, 2016, 05:59:28 PM

Title: Aprilia "gruppo propulsore" removal
Post by: brian on 16 June, 2016, 05:59:28 PM
I think I have lost teeth or something in the diff of the Aprilia. I did get to the Handbook in Birmingham first but it is in Italian. Has anybody the translation of pages 47-48 or hints on how to take it off the car? It does not look too taxing - but I have said that before and lived to regret it!!
I will by the time of removal have a 2 post lift in the garage so should aid process.


Title: Re: Aprilia "gruppo propulsore" removal
Post by: simonandjuliet on 16 June, 2016, 06:29:10 PM
Hi I have just dismantled an Aprilia diff and rear subframe unit on the bench (to help another Aprilia owner with some parts)
so let me know what you find - I have some new crownwheels and pinions as well

The best thing to do is remove the whole thing as a single unit and then dismantle carefully on the floor. But if you are going to work on the innards of the diff you will need the proper spring removing tool to do it safely (and easily).

I think that it really is quite straight forward, so long as the bolts aren't seized

I will look to see if I have a translation, but not sure

Title: Re: Aprilia "gruppo propulsore" removal
Post by: BlueSky on 17 June, 2016, 03:49:37 AM

What makes you think you have a broken gear tooth? Have you drained the oil and checked for metal fragments?

I'm only asking because removing the rear end for the first time can be difficult,  I've now done it three times and think it's fun!

The pages in the manual are just a description on how it all works, not how to repair it. If you have a 2nd series manual it is in English there. Attached is the page from "Servicing The Aprilia" that gives you some idea how to approach removing the whole unit.

If you do decide to take it out I can pass on some further details of what's involved.

Good luck,