Qu1ckn1ck Posted September 21, 2019 Report Share Posted September 21, 2019 I have excessive play in one rear hub even though the hub nut is tight to the correct torque so looking for advice. What hub puller is recommended and where is best place to borrow, steal or even buy it from? Who supplies the best quality bearings for the Rotoflex rear hub? I have a spare set of shafts, hubs and uprights - is it easier to remove the hub and set up new bearings on the spare set then swap with the assembly on the car ? I think that I will be bending Pete's ear at The Raven on Monday evening ! Link to comment Share on other sites More sharing options...
Pete Lewis Posted September 21, 2019 Report Share Posted September 21, 2019 we did pauls ok and i have his puller lets chat o monday paul has a selection of shims we didnt use ... must be worth a pint ??? Pete 1 Link to comment Share on other sites More sharing options...
Qu1ckn1ck Posted September 21, 2019 Author Report Share Posted September 21, 2019 11 minutes ago, Pete Lewis said: we did pauls ok and i have his puller lets chat o monday paul has a selection of shims we didnt use ... must be worth a pint ??? Pete Sounds like a plan, what is your poison ? Link to comment Share on other sites More sharing options...
Pete Lewis Posted September 21, 2019 Report Share Posted September 21, 2019 chat first poison later !!! 1 Link to comment Share on other sites More sharing options...
Gully Posted September 21, 2019 Report Share Posted September 21, 2019 I bought a full set of shims from rbmobileclassics on eBay - including replacing the one we used on rebuilding my o/s hub. However, he's not listing any at the moment. The seller, Richard Briscoe, also advertises in the back of The Courier magazine - he's the second listing under Parts 4 Sale on page69 of the August edition, immediately beneath Mike Papworth. If you have the option of building the replacement shaft / hub separately, including a new banded rotoflex coupling, then that's some benefit for reassembly. However, if you're not replacing the coupling, then you'll probably not gain much. How much play do you have? Is the bearing rumbling? Gully Link to comment Share on other sites More sharing options...
Qu1ckn1ck Posted September 21, 2019 Author Report Share Posted September 21, 2019 A large amount of play but no bearing rumble noticeable above the cars normal rattles and squeaks. The rotoflex were new banded and appeared fine when I bought the complete shaft, upright and brake assemblies recently as refurbished from an unfinished project. Nick Link to comment Share on other sites More sharing options...
Qu1ckn1ck Posted September 22, 2019 Author Report Share Posted September 22, 2019 On 21/09/2019 at 17:50, Gully said: I bought a full set of shims from rbmobileclassics on eBay - including replacing the one we used on rebuilding my o/s hub. However, he's not listing any at the moment. The seller, Richard Briscoe, also advertises in the back of The Courier magazine - he's the second listing under Parts 4 Sale on page69 of the August edition, immediately beneath Mike Papworth. If you have the option of building the replacement shaft / hub separately, including a new banded rotoflex coupling, then that's some benefit for reassembly. However, if you're not replacing the coupling, then you'll probably not gain much. How much play do you have? Is the bearing rumbling? Gully Been on to rbmobile and he can supply spacers but at the moment I am not sure exactly what will be required until the hub is disassembled. Nick Link to comment Share on other sites More sharing options...
Pete Lewis Posted September 24, 2019 Report Share Posted September 24, 2019 well we can report back after october 5th when we drink tea and ponder Pete 1 Link to comment Share on other sites More sharing options...
Gully Posted September 24, 2019 Report Share Posted September 24, 2019 10 hours ago, Pete Lewis said: well we can report back after october 5th when we drink tea and ponder Pete Yep - I have a pass to come and drink coffee! 😀 Gully 1 Link to comment Share on other sites More sharing options...
Adrian Posted September 24, 2019 Report Share Posted September 24, 2019 It may well be the case that it is over shimmed which allows you to torque up but won’t tighten the taper bearings sufficiently. I didn’t need a puller when I did mine. I shimmed via trial and error until I was happy with the setup, adding 1 thou at a time, I was able to remove hub each time insitu without having to disconnect the brake hose. Uncle Pete will sort you out! 1 Link to comment Share on other sites More sharing options...
Pete Lewis Posted September 24, 2019 Report Share Posted September 24, 2019 Blimey ....now we have to succeed Pete 1 Link to comment Share on other sites More sharing options...
Qu1ckn1ck Posted September 26, 2019 Author Report Share Posted September 26, 2019 On 24/09/2019 at 21:11, Adrian said: It may well be the case that it is over shimmed which allows you to torque up but won’t tighten the taper bearings sufficiently. I didn’t need a puller when I did mine. I shimmed via trial and error until I was happy with the setup, adding 1 thou at a time, I was able to remove hub each time insitu without having to disconnect the brake hose. Uncle Pete will sort you out! I have difficulty in vizualizing the GT6 Rotoflex hub bearings and spacer arrangement as my previous experience has been with much simpler live rear axles. I came to a similar conclusion to you, that the shimming probably needs to be reduced to put pre-load on the bearings. Link to comment Share on other sites More sharing options...
Pete Lewis Posted September 26, 2019 Report Share Posted September 26, 2019 no its the opposite add shims reduces the float as the shims are not sandwiched between the races but are on the outside at the inner end this is why its a pain, there is no spacer between the races they are free to well ....float Pete 1 Link to comment Share on other sites More sharing options...
Qu1ckn1ck Posted September 26, 2019 Author Report Share Posted September 26, 2019 1 hour ago, Pete Lewis said: no its the opposite add shims reduces the float as the shims are not sandwiched between the races but are on the outside at the inner end this is why its a pain, there is no spacer between the races they are free to well ....float Pete The more I see of Triumph's engineering design ...... Link to comment Share on other sites More sharing options...
Pete Lewis Posted September 26, 2019 Report Share Posted September 26, 2019 can you drive a 3 wheeler ??? Pete 1 Link to comment Share on other sites More sharing options...
Pete Lewis Posted September 26, 2019 Report Share Posted September 26, 2019 Paul thinks im wrong so I will go back to sleep Pete 1 Link to comment Share on other sites More sharing options...
Qu1ckn1ck Posted October 5, 2019 Author Report Share Posted October 5, 2019 We're off to see the Wizard ..... Link to comment Share on other sites More sharing options...
Pete Lewis Posted October 5, 2019 Report Share Posted October 5, 2019 With all the rain me Wand's got the droops!! Pete Link to comment Share on other sites More sharing options...
Colin Lindsay Posted October 5, 2019 Report Share Posted October 5, 2019 I thought that was just advancing age? Link to comment Share on other sites More sharing options...
Pete Lewis Posted October 5, 2019 Report Share Posted October 5, 2019 well the hub needed the hub puller and impact gun and bang its off with very dished washer ,, strange its supposed to be a hand fit on the splines you dont have room to magnet the spacer out, and ive lost my small one anyway, dont ask but we machined a few thou off the hub but refitting needed more load than removing ,, all a bit odd so pause for bacon buttie and drag it off, the hub has seen a hard previous problem , so we try gully's spare hub, bingo slides on a treat too much float so again shorten the hub by 0.003" and refit and torque the nut fit wheel no rock brilliant, fitted new wheel studs while it was off so there is life with rotaflex hubs Nicks got a snap of the elusive packing to get the oil seal fully seated .. jobs a good un !!! to heck with the manual and myths .simple head scratching saved the day not a purist repair but needs must await nicks did it get him home ok ??? Pete and Gully 1 Link to comment Share on other sites More sharing options...
Qu1ckn1ck Posted October 5, 2019 Author Report Share Posted October 5, 2019 Safely home with all four wheels rotating smoothly. Many thanks to Pete and Gully for their time and expertise. Thanks Gully for donating your spare hub and thanks also to Gill for supplying very welcome food and drink at appropriate moments. 1 Link to comment Share on other sites More sharing options...
Pete Lewis Posted October 5, 2019 Report Share Posted October 5, 2019 Note we are going to patent the rough sawn ply packers the old 4 leg dividers were made as apprentice in 1962 and often come in handy A Mk2 version will be more sophisticated . If ever Good when outside the box thoughts actually works Pete 1 Link to comment Share on other sites More sharing options...
Pete Lewis Posted October 6, 2019 Report Share Posted October 6, 2019 we can only assume the hub has been seriously deformed by a previous failure the nut platform is really deformed the rather thin washer took on the apperance of the gear remote cup, the hub was so excessively tight on the shaft there is no way the 'who did the rebuild' could have accessed the end float , the subsequent lack of feel decended into a large endfloat the spec being 0.0005 to 0.0025" Pete 1 Link to comment Share on other sites More sharing options...
Qu1ckn1ck Posted October 7, 2019 Author Report Share Posted October 7, 2019 14 hours ago, Pete Lewis said: we can only assume the hub has been seriously deformed by a previous failure the nut platform is really deformed the rather thin washer took on the apperance of the gear remote cup, the hub was so excessively tight on the shaft there is no way the 'who did the rebuild' could have accessed the end float , the subsequent lack of feel decended into a large endfloat the spec being 0.0005 to 0.0025" Pete ... and here is the photographic evidence m'lud: Link to comment Share on other sites More sharing options...
Pete Lewis Posted October 7, 2019 Report Share Posted October 7, 2019 Nick always says i give him nightmares well this was a bad dream with a good outcome albeit not to the 'book' Pete 1 Link to comment Share on other sites More sharing options...
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