Chilliman Posted July 28, 2014 Report Share Posted July 28, 2014 Every time I think I've found out everything there is with my newest car she surprises me again. Having heard some unusual noise (metal on metal crunch!) emanating from the back end at low speed when cornering I thought it prudent to pull the lid off the diff unit and check the oil for debris, I wasn't expecting this view of the contents: Am I correct in thinking this is what is called a ten bolt Salisbury limited slip diff? I have no experience of LSD's at all. I strained the oil into a paint filter and captured some small metal (magnetic) particles: Fortunately I've got a spare useable axle which I'll put on for now to go to the international .....along with box, overdrive etc etc! ...but what's the worth in getting the other one with the LSD repaired - is it even possible? Quote Link to post Share on other sites
AlanT Posted July 28, 2014 Report Share Posted July 28, 2014 http://www.salisburytransmissions.co.uk/ Quote Link to post Share on other sites
Alec Pringle Posted July 28, 2014 Report Share Posted July 28, 2014 You may very well think so, Alan . . . . . Personally I'd have a word with Pete Cox. I can't see the merit in an LSD on a standardish road car, but this is a desirable and valuable item from a competitor's viewpoint, and well worth a rebuild.. Cheers Alec Quote Link to post Share on other sites
BlueTR3A-5EKT Posted July 28, 2014 Report Share Posted July 28, 2014 (edited) You will need special LS oil in the LSD axle if it is plate type, which is what it looks like. or an LS additive in your hypoid oil. - Best type to use, I was told, Castrol B373. Cheers Peter W Edited July 28, 2014 by BlueTR3A-5EKT Quote Link to post Share on other sites
ctc77965o Posted July 29, 2014 Report Share Posted July 29, 2014 If it was running without the LSD additive then this low speed graunching is normal, there could be nothing wrong with it....try it with the right oil and see how it sounds...should slide beautifully on a wet road.... Quote Link to post Share on other sites
AlanT Posted July 29, 2014 Report Share Posted July 29, 2014 Is there was whacking great crack through this. Or is it just a trick of the light? So I thought anyone with spares would be a good start. Quote Link to post Share on other sites
Steves_TR6 Posted July 29, 2014 Report Share Posted July 29, 2014 If it was running without the LSD additive then this low speed graunching is normal, there could be nothing wrong with it....try it with the right oil and see how it sounds...should slide beautifully on a wet road.... Absolutely! I bought my TR6, which has an LSD, back in december 2012, the temp was about 2C that day and i had a lot of fun :-) It's very good in the we too. Steve Quote Link to post Share on other sites
stuart Posted July 29, 2014 Report Share Posted July 29, 2014 They will make some god awful noises without the correct oil in, Try a refill with the correct oil first before you do anything else.If you dont want to keep it I would like to have it. Stuart. Quote Link to post Share on other sites
littlejim Posted July 29, 2014 Report Share Posted July 29, 2014 the Prado comes with one, not ever aware of it, but obviously cuts in on the slime on the boat ramp when retrieving at low tide, and in the mud. As Stewart says the book says use the special LSD oil. Quote Link to post Share on other sites
boxofbits Posted July 29, 2014 Report Share Posted July 29, 2014 probably just the clutch plates slipping, or not slipping! Though many are out of adjustment or badly assembled. But a Salisbury LSD is good quality. Quote Link to post Share on other sites
BlueTR3A-5EKT Posted July 29, 2014 Report Share Posted July 29, 2014 (edited) Is there was whacking great crack through this. Or is it just a trick of the light? So I thought anyone with spares would be a good start. That's what I thought I could see, I can also see an alignment mark on the CW to LSD. Maybe just a scape marks. I think more debris would have been found if it had exploded. The diff cross pin is a usual suspect. This LSD is in a solid axle Stuart so if you do get one and want to put it in an IRS, do not forget to remove the thrust button or your side shafts will not go in. Like wise, fail to fit the thrust button in a solid axle installation and your outer hub bearings will be shagged in no time. I do have a couple of NOS Salisbury clutch plates for this type of LSD. PM me if you are in need. Cheers Peter W PS If fitting in an IRS axle drill/tap and fit a drain plug so you can change the oil without taking the back cover off. Also be sure the breather is clear and clean - this goes for all axles. Edited July 29, 2014 by BlueTR3A-5EKT Quote Link to post Share on other sites
Chilliman Posted July 29, 2014 Author Report Share Posted July 29, 2014 Thanks for the education! As a result of the comments and advise on pm's I suspect I may have been worrying needlessly. The viscosity and colour of the oil that came out would tend to imply that it hadn't been changed for a very very long time and could have been anything. I think this calls for a careful clean up, new gasket and a good quality LSD oil and we'll see what happens. The marks referred to above are just the oil running over the face of the LSD, there aren't any apparent breakages. Lets see what happens........ Quote Link to post Share on other sites
TorontoTim Posted July 29, 2014 Report Share Posted July 29, 2014 (edited) I think the "crack" is the reflection of the handbrake cable. Edited July 30, 2014 by TorontoTim Quote Link to post Share on other sites
stuart Posted July 30, 2014 Report Share Posted July 30, 2014 That's what I thought I could see, I can also see an alignment mark on the CW to LSD. Maybe just a scape marks. I think more debris would have been found if it had exploded. The diff cross pin is a usual suspect. This LSD is in a solid axle Stuart so if you do get one and want to put it in an IRS, do not forget to remove the thrust button or your side shafts will not go in. Like wise, fail to fit the thrust button in a solid axle installation and your outer hub bearings will be shagged in no time. I do have a couple of NOS Salisbury clutch plates for this type of LSD. PM me if you are in need. Cheers Peter W PS If fitting in an IRS axle drill/tap and fit a drain plug so you can change the oil without taking the back cover off. Also be sure the breather is clear and clean - this goes for all axles. If I had one it would be going in a solid axle. Mine is ex USA solid axle. Stuart. Quote Link to post Share on other sites
BlueTR3A-5EKT Posted July 30, 2014 Report Share Posted July 30, 2014 If I had one it would be going in a solid axle. Mine is ex USA solid axle. Stuart. A most sensible arrangement too, I have always favoured the rigid axle 4A over the IRS, albeit not so soft a ride. Discuss Quote Link to post Share on other sites
stuart Posted July 31, 2014 Report Share Posted July 31, 2014 A most sensible arrangement too, I have always favoured the rigid axle 4A over the IRS, albeit not so soft a ride. Discuss As a lot of people will attest my car is set up solid anyway. Stuart. Quote Link to post Share on other sites
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