I'm fitting a 4 pin diff to the gearbox I'm building for my Mini, I've never fitted one before. Can anyone answer the following questions?

What is the torque wrench setting for the crown wheel bolts? Is this the same as a standard mini diff?

The original diff had both a fibre and copper thrust washers on the output shaft going through the crown wheeel, if I fit both the 4 pin diff won't turn. Which thrust washer do I fit?

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Lindsay Palmer
06 Mazda SP23
80 Alfa GTV (weekend toy)
86 626 Turbo (daily drive, now stolen)
71 cooper s replica
69 cooper replica
76 clubman
62 english 850
68 Mini Auto

torque is same as standard, and I think it should have fibre washers.... mine is on the shelf, I'll check in the morning if I remember

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did I tell you that I won a trophy?

I do the crown wheel bolts to 50 ft/lb, I have seen them strip at 55.
[edit] They are only a 3/8" UNF bolt, though the head size is for a 7/16" one.
As for the flat thrust washers, the recent aftermarket fibre ones are often too thick. Previously there were thinner ones. Prior to 1970? these washers were bronze. If you have these, use instead of the fibre.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

Thanks Dr and Simon. I'll use the bronze washer. Lucky you told me about the torque setting for the bolts Dr, the Minispares article I found last night said 60ft/Ib.

_________________
Lindsay Palmer
06 Mazda SP23
80 Alfa GTV (weekend toy)
86 626 Turbo (daily drive, now stolen)
71 cooper s replica
69 cooper replica
76 clubman
62 english 850
68 Mini Auto

How to guide on guessworx website too i think.

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Now with 2 extra ports!

Thanks supercooper but the guessworks guide only covers building the diff centre not fitting the crow wheel.

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Lindsay Palmer
06 Mazda SP23
80 Alfa GTV (weekend toy)
86 626 Turbo (daily drive, now stolen)
71 cooper s replica
69 cooper replica
76 clubman
62 english 850
68 Mini Auto

Couldnt remember......knew there was some onfo there....

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Now with 2 extra ports!