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Old 02-04-2014, 12:43 PM   #26
Turbeam
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Am I right in thinking that a G80 from a 1041 axle is not compatible with the IRS diff casing for some reason?
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Old 02-04-2014, 01:06 PM   #27
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Originally Posted by VB242 View Post
I don't really know what happened but here's the link to my busted G80 thread with pics of the damage. I cut my governor weight as opposed to welding, I will weld the next one if this one (cut governor weight as well ) breaks.

http://forums.turbobricks.com/showthread.php?t=283229
Thanks for the link. That is really strange, it hasn't failed in the way I was expecting at all!

The little rotating barrel part is responsible for lock up, the larger mass only moves outwards at higher rotational speeds to disengage with the much smaller weights on the 'barrel'.

With the disengagement mass reduced by cutting it down, the same spring force on it should be able to control it more easily and raise the disengagement speed.

I'm struggling to imagine how the big mass could have got damaged and its shaft so badly bent as a result of it disengaging?... and if it happened during engagement (at which point a mass change should have made no real difference), surely the lighter and much less robust 'barrel' and its axle/ pin would have suffered the greater damage as a result, and yet it looks to be OK in the photo?

It almost looks as if it has caught on some part of the diff casing in some way as it has been rotating to have been so comprehensively destroyed, but that shouldn't even be possible!

Very strange indeed.

At least I have only reduced the weight of my disengagement mass a little rather than cutting it off completely as I wanted to retain the disengagement function albiet up to a slightly higher speed. Hopefully I won't have any similar problems.
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Old 02-04-2014, 01:37 PM   #28
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I'm pretty sure the axle shaft at least passed through the ring and pinion to get bent into that shape. not so sure what happened to the governor weight.
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Old 02-04-2014, 04:39 PM   #29
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[QUOTE=Turbeam;4819437]
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Originally Posted by monty400k View Post

Did you find a label on it or did you have to remove the cover Jonathan?

I'm a little suprrised that a later model UK 960 Estate doesn't come as stock with some kind of differential anti-spin device fitted, G80 or otherwise.

I guess that one of those must now be very high on your wish list...I think it would make a huge difference to your car even before adding a supercharger.
There was a label on it, I doubt Id be able to get the cover off with the rear subframe in place anyway so that saved a lot of work, good thing is once I get a hold of the guy in Dumbarton now I know I can check his cars on the off chance there is a 1065 in one of them just by looking underneath!
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Old 02-05-2014, 01:02 PM   #30
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Fingers crossed for you on that one. If your own 960 didn't have a G80, I don't know how common their fitment would be on other UK 3-litre IRS 960s?
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Old 02-06-2014, 12:31 PM   #31
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Fingers crossed for you on that one. If your own 960 didn't have a G80, I don't know how common their fitment would be on other UK 3-litre IRS 960s?
Spoke to a guy earlier who has got one so that is reassuring, not a priority at the moment but at least I know they are available
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Old 06-18-2017, 01:25 PM   #32
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Just discovered that Japanese market got locking diff as standard equipment, have confirmed this on Japanese market 1995, 1996, 1997 960, 1998 S90 and 1996 940 brochure. So if anyone is struggling to find one, try looking in Japan!!
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