John h Posted March 21, 2019 Report Share Posted March 21, 2019 Hi all i have to replace the nyloc nuts on the rear hubs due to them getting dipped in acid just the nut not the hub any way i bought some new ones 5/8 unf but the socket size is 15/16 where as the original is over an inch socket I think about inch and 1/8 will this matter .Also while I have your attention when I bolted the hubs onto the trailing arms I used a spring washer and nut should that have been nyloc nuts.By the way I did the studs in the trailing arms used 5/16 unf helicoils as was suggested seams to have worked out ok regards john Quote Link to post Share on other sites
RogerH Posted March 21, 2019 Report Share Posted March 21, 2019 Hi John, the six nut holding the hubs on are nylok with no spring washer. The big nut should be OK even in its smaller AF size. Roger Quote Link to post Share on other sites
John h Posted March 21, 2019 Author Report Share Posted March 21, 2019 Ok thanks Roger I’ll swap the studs nuts and go with the new hub nuts thanks again John Quote Link to post Share on other sites
BlueTR3A-5EKT Posted March 21, 2019 Report Share Posted March 21, 2019 (edited) TR4A-6 IRS? From memory the big hub nuts for the rear stub axle are exotic - not run of the mill regular nylocs. Cheers Peter W PS the late 6 used a slotted nut with split pin. It is the same nut as real Mini front hub o drive shaft. Edited March 21, 2019 by BlueTR3A-5EKT Quote Link to post Share on other sites
John h Posted March 21, 2019 Author Report Share Posted March 21, 2019 Yes you’re right Peter they are huge I looked on rimmers and it looks like they supply the same smaller nut thanks again John Quote Link to post Share on other sites
Waldi Posted March 22, 2019 Report Share Posted March 22, 2019 John, where you use nyloc nuts, you do not need springwashers. If in doubt, look in the Moss catalog, that shows clearly what is used where. That is what I do. Regards, Waldi Quote Link to post Share on other sites
Tr4aJim Posted March 22, 2019 Report Share Posted March 22, 2019 Here’s a question regarding nyloc nuts. How far does the threaded end of the bolt have to engage a nyloc nut? On my TR4a, I recently replaced the lower rubber steering shaft coupling, with a metal universal joint from a TR6. It came with two bolts and nyloc nuts, but when tightened, the bolt ends are about 1mm short of being flush with the end of the nut. Is that sufficient, or are the supplied bolts too short? thanks Jim Quote Link to post Share on other sites
Motorsport Mickey Posted March 22, 2019 Report Share Posted March 22, 2019 Always use a bolt which protrudes through the nyloc, any more than a thread is a waste but why risk a lessened anti loosen effect if the bolt is a mm under the nyloc end, the nylon anti loose collar isn't that wide. Mick Richards Quote Link to post Share on other sites
Drewmotty Posted March 22, 2019 Report Share Posted March 22, 2019 They are too short. The thread should protrude through the nut by a couple of pitches. Quote Link to post Share on other sites
Tr4aJim Posted March 22, 2019 Report Share Posted March 22, 2019 New bolts (and nuts) it is! Thanks, Jim Quote Link to post Share on other sites
BlueTR3A-5EKT Posted March 30, 2019 Report Share Posted March 30, 2019 Here is the Technical Bulletin about the change of rear hub nut from nyloc to split pinned slotted nut - NOTE the torque required for the nut dropped from 120 ft lbs to 90 ft lbs. http://www.triumphsonly.com/pages/technical/74-f-1.htm Cheers Peter W Quote Link to post Share on other sites
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