Tnx for superb comments + info.
from my first post 56000910 was the last numbers from vin so if you have access to service.citroen.com you can check that it is 16/63 I have with 16mm pin. We have this v1600 class in Finland and it's close to N. Rules say, gearbox have to be unmodified. So no possibility to change diff too much so thats what we have to work with.
I would of course tighten up the final drive if possible as it is now mainly 2:nd and 3:rd gear and rarely 4:th and 1:st, but by the rules it is not possible. For training I have had other ratios.
And yes, for that I used redline, not the stickiest one though.
axsaxoman, I know that tearing a part box to check the pin is an job, so not going to ask anyone to do it unless the plan forward is clear enough how to do it untill end. If the plan comes up to that it is reasonable job and doable and not too expensive for anyone then I might ask.
But would like to have clear plan how it will go, I mean that it is clear that with that plan, I can manage to fix the box... Hope that maked sense.
>but yes you want a pair from a box --cos over time they have changed the helical angle --so check they match up in straight line
Crap, is this how it sounds. So it it might be that I'm not able to use my 63 crownwheel with all the diff gears? And I will have to check it somehow?
>looked at your picture and failure reason is the usual one
excessive wheel spin causes wear on cast iron dif housing
Yep, on gravel and ice, I don't think it's much of an issue as they pretty much run same speeds, but on tarmac it is. Thats where it broke of, training hairpins for the sprints after track day.
>you will have seen grey colour of gear oil
Yep, redline is so expensive, that I filtered out the grey stuff it ocasionally and put the best parts + little new in. Not too often that way though. I do have tried to run it as clean as possible, like change after 300km or so, same for engine.
>if you had looked before it broke gears move back out of mesh untill the tips cannot transmit the power == then bang
That makes a lot of sense, I do belive every word on that.
>so this had nothing to do with pin size on planets --just general abuse to dif spinning wheels over time
Yes, I didn't mean it was bc. of pin. With the 16mm 14mm pin, I was just merely asking that as 14mm pin diffs are easier to find, can I put them in the box with 63 crownwheel.
Ok, but what would be the suggestion for fix to me as the requirements are:
- standard diffs (so I could think it doesn't matter 14mm or 16mm, as long as it is Citroen or similar spare, not enhancement)
- 16/63 ratio + gears have to be what is stated on the inspection sheet (dont have it now, but it is what sevice.citroen.com says)
What diff would fit to 1.6 VTS and where to get (16/63 ratio)
Linear Mode
