johny Posted November 20, 2023 Report Share Posted November 20, 2023 Just thought of course there will be some drag when turning just one wheel so yours could be normal. If you turn the propshaft both wheels should turn equally and with minimal drag.... 32 minutes ago, Straightsix said: johny yes drag is felt on both sides, tried raising wheel hubs with another trolley jack so driveshafts not angled downwards made no difference. 1 Link to comment Share on other sites More sharing options...
Straightsix Posted November 20, 2023 Report Share Posted November 20, 2023 Trigolf Well spotted re spring locations, I didn’t spot that. I didn’t disturb the brakes purely a visual check, albeit not that good 🤦🏼♂️. Appreciate your help with driveshaft issue. I’ll tackle issues again when time and motivation returns, probably in the spring sorry about the pun. 🤦🏼♂️ Link to comment Share on other sites More sharing options...
Pete Lewis Posted November 20, 2023 Report Share Posted November 20, 2023 at least the shoes were fitted the right way round ....that makes a change hand brake adjustment disconnect the cable from the wheel cyl lever, dont let the axle "hang"on full droop fully lock the adjuster up hard , now connect the cable to a neat fit, no tension.no slack de adjust the 4 clicks (one full turn ) all should be fine there is a wear that upset cylinder slide thats a wear groove in the back plate caused by the handbrake lever pivot the angle of the compensator is important its operating angle is in most manuals Pete 1 Link to comment Share on other sites More sharing options...
PeteH Posted November 21, 2023 Report Share Posted November 21, 2023 (edited) Not really related to any specific failure, but it is worth considering, with any fastener, "has it been over tightend in it`s past", and by definition taken beyond its elastic limit? that and "notches" produced by poor machining practices, have been the source/start point of many a failure. Peter Edited November 21, 2023 by PeteH Link to comment Share on other sites More sharing options...
Peter Truman Posted November 21, 2023 Report Share Posted November 21, 2023 I had a drive shaft Axle fail on my 2 yr old Herald 1200 in 68 whilst backing out of the drive in Stokesley, upon inspection it showed rust halfway thro the shaft so the crack was well established the failure was inboard of the backplate. Link to comment Share on other sites More sharing options...
johny Posted November 21, 2023 Report Share Posted November 21, 2023 Apart from machining I wonder if the local heat treatment to obtain the surface hardness for the inner needle roller bearing (non roto) is the cause of the failure especially when it occurs inboard of the drum backplate... Link to comment Share on other sites More sharing options...
johny Posted November 21, 2023 Report Share Posted November 21, 2023 Yet Peters went at 2 years old and now we've got replacement ones doing it as well! Link to comment Share on other sites More sharing options...
iani Posted November 21, 2023 Report Share Posted November 21, 2023 My shaft is being sent away for materials analysis, it will be interesting to see what they find. 1 Link to comment Share on other sites More sharing options...
Wagger Posted November 22, 2023 Report Share Posted November 22, 2023 Most of our cars have old shafts and who knows what PO's have done with them. I doubt very much if anything made today is the same as back in the 1960's. All this is making me reluctant to use my car with the torque produced by a 2.5 litre engine. Modding it to Mk2 rear suspension is way beyond me now. Link to comment Share on other sites More sharing options...
Pete Lewis Posted November 23, 2023 Report Share Posted November 23, 2023 think thats a good view , with a light right foot with increased power with a limited drive line keep it happy Pete Link to comment Share on other sites More sharing options...
iani Posted November 23, 2023 Report Share Posted November 23, 2023 32 minutes ago, Pete Lewis said: think thats a good view , with a light right foot with increased power with a limited drive line keep it happy Pete Not sure I see the point in fitting a more powerful engine if you aren't going to use it though, a standard GT6 is no slouch after all 😃 Link to comment Share on other sites More sharing options...
Wagger Posted November 23, 2023 Report Share Posted November 23, 2023 (edited) My car was a present from my son after I had treatment, so a total surprise to find it had the 'Wrong' engine. Having said that it runs very nicely. I believe that the drive shafts are beefier than Herald ones (Except 13/60 maybe). I know that the u/j kits have larger diameter inserts. Using a Torque wrench to take the hubs off broke nothing, even at 150 lb/ft, so I may be ok. It required that torque to remove the left hub, even after hammering and gentle heating. Edited November 23, 2023 by Wagger Link to comment Share on other sites More sharing options...
johny Posted November 23, 2023 Report Share Posted November 23, 2023 Unfortunately I think the standard drive shaft itself is the same for Herald 948 through to Mk1 Vitesse and GT6 although the coupling bolts were beefed up along the way. Makes me think I should put skinner tyres on mine😄 Link to comment Share on other sites More sharing options...
Pete Lewis Posted November 23, 2023 Report Share Posted November 23, 2023 skinny tyres great in the mud or on snow cut through the mush nicely not sit on top spinning wildly you wont find a navvy with fat tyre on his barrow !!! Link to comment Share on other sites More sharing options...
johny Posted November 23, 2023 Report Share Posted November 23, 2023 Great in the dry as well for spinning and not transmitting all that torque to the halfshafts😨 Link to comment Share on other sites More sharing options...
68vitesse Posted November 23, 2023 Report Share Posted November 23, 2023 Seem to remember a Top Gear with and old Land Rover with skinny tyres kept going in the mud while more modern off roaders with wide tyres got stuck. Regards Paul. Link to comment Share on other sites More sharing options...
Pete Lewis Posted November 23, 2023 Report Share Posted November 23, 2023 spinning a wheel (like on ice) then it suddenly grips puts a enormous load through the actual differential gears ( sun and planets) this often shatters them or breaks the pin pete Link to comment Share on other sites More sharing options...
johny Posted November 23, 2023 Report Share Posted November 23, 2023 Time to put a Herald engine in my Vitesse I think as havent heard of them breaking half shafts or diffs? 1 Link to comment Share on other sites More sharing options...
Pete Lewis Posted November 23, 2023 Report Share Posted November 23, 2023 way back in the 60s my 948 sheared a diff short shaft there is no escape Ha ! Link to comment Share on other sites More sharing options...
johny Posted November 23, 2023 Report Share Posted November 23, 2023 Ah but I believe Triumph in their wisdom rectified that issue, they just didnt do the rest of the axle at the same time😞 Link to comment Share on other sites More sharing options...
Wagger Posted November 23, 2023 Report Share Posted November 23, 2023 A brief look at Canleys reveals that there was an uprated shaft availble sometime in the past, but it is NLA. PN was 132300. The Herald/Vit6/GT6 and Spit was 128135. Anyone know what the difference was? Link to comment Share on other sites More sharing options...
johny Posted November 24, 2023 Report Share Posted November 24, 2023 Pretty difficult to do much in the sensitive outboard end area without having to completely redesign the bearing and hub. I think a key and taper was a strange idea as usually one OR the other is used - not having a keyway would have removed a potential failure point... Link to comment Share on other sites More sharing options...
Pete Lewis Posted November 24, 2023 Report Share Posted November 24, 2023 and as a youngster with less experience than the later years i removed the whole diff in the dark a torch in the cold ,ended up with a boing as the spring came up and hit the floor, dropped the diff to find all i needed was to remove the short shaft hsg, well you learn as you develop. have no recollection of how i got the spring back all done on jacks and blocks . yikes !!! i was a lot quicker at extricating in those days ha ! Pete Link to comment Share on other sites More sharing options...
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