Tanky Posted August 22, 2019 Report Share Posted August 22, 2019 Hello again. I have just had two new tyres fitted on the front, during which the nice chap discovered a bit of play top to bottom on the wheels. There is no side to side play, just top to bottom. It's only a few mm but it's quite noticeable. Is this the wheel bearings? If so, do they need a tighten or replacing? Thanks in advance... Charlie Link to comment Share on other sites More sharing options...
Badwolf Posted August 22, 2019 Report Share Posted August 22, 2019 Charlie - May just need nipping up. I have noticed the same on one of mine which needs investigation. You will get chapter and verse from someone shortly. Link to comment Share on other sites More sharing options...
johny Posted August 22, 2019 Report Share Posted August 22, 2019 If its wheel bearing, which MUST have some play, it should be detectable in all directions although its more difficult to feel side to side as the steering allows movement. If its only top and bottom then its likely to be the bottom trunnion and/or top balljoint which can be identified by close inspection or feel when wobbling the wheel..... Im talking about small chassis Triumphs Link to comment Share on other sites More sharing options...
Pete Lewis Posted August 22, 2019 Report Share Posted August 22, 2019 and another test if its wheel bearing get someone to apply the foot brake the play will disappear . if its trunion or bushing it wont front wheel bearings have 0.002" to 0.008" endfloat the normal is a light finger nip of the castle nut and back off 1 or 2 flats then fit the splitpin remove the end float and you have an expensive and rapid seizure of the outer bearing onto its stub axle ......not advised pete Link to comment Share on other sites More sharing options...
Tanky Posted August 22, 2019 Author Report Share Posted August 22, 2019 Great, Thanks guys. I'll have a closer look at the weekend.. Link to comment Share on other sites More sharing options...
daverclasper Posted August 22, 2019 Report Share Posted August 22, 2019 I have always had more play top to bottom. The stub axle appears to have more wear at the bottom in the bearing area (more bearing load on this bit maybe?). Could yours be this?. Dave Link to comment Share on other sites More sharing options...
Pete Lewis Posted August 22, 2019 Report Share Posted August 22, 2019 as said its just easier to find in the vertical plane then horizontal, doubt the stub shaft has any wear just some polished marks is normal pete Link to comment Share on other sites More sharing options...
Tanky Posted August 22, 2019 Author Report Share Posted August 22, 2019 What would I do without you guys! Link to comment Share on other sites More sharing options...
daverclasper Posted August 22, 2019 Report Share Posted August 22, 2019 2 hours ago, Pete Lewis said: doubt the stub shaft has any wear just some polished marks is normal Hi Pete. I could well be wrong, though there does appear to be a slight ridge/lip at the bottom, (around where the inner edge of the outer bearing sits if my memory serves me). Maybe not the case as you say, as I assume also, this would have worn through any surface hardening and this maybe visible/wearing quickly?. Dave Link to comment Share on other sites More sharing options...
Pete Lewis Posted August 22, 2019 Report Share Posted August 22, 2019 Well stubs are heat treated, shouldnt have significant wear, yes the race inners do rotate on the stub but as assembled with float not any wild rotation , all quite gentle the stubs are available can be a swine to remove as the taper gets a good grip Pete Link to comment Share on other sites More sharing options...
poppyman Posted August 22, 2019 Report Share Posted August 22, 2019 8 minutes ago, Pete Lewis said: Well stubs are heat treated, shouldnt have significant wear, yes the race inners do rotate on the stub but as assembled with float not any wild rotation , all quite gentle the stubs are available can be a swine to remove as the taper gets a good grip Pete A bit like Karl's (Bordfunker) rear hub? Or worse? Tony. Link to comment Share on other sites More sharing options...
Pete Lewis Posted August 22, 2019 Report Share Posted August 22, 2019 And if it relaxes after a new fit it makes some weird noises Pete Link to comment Share on other sites More sharing options...
daverclasper Posted August 22, 2019 Report Share Posted August 22, 2019 And if it's a new repro?, it could be crap?. Dave Link to comment Share on other sites More sharing options...
johny Posted August 22, 2019 Report Share Posted August 22, 2019 Come on guys you'll be frightening Charlie! Link to comment Share on other sites More sharing options...
Pete Lewis Posted August 23, 2019 Report Share Posted August 23, 2019 Yes , tanky just check the end float Were not Doomed, check the nut pike . Pete Link to comment Share on other sites More sharing options...
Colin Lindsay Posted August 23, 2019 Report Share Posted August 23, 2019 14 hours ago, Pete Lewis said: the stubs are available can be a swine to remove as the taper gets a good grip Pete And not very easy to replace, either! I've replaced one recently and am not happy with the fit so far... must try again! Link to comment Share on other sites More sharing options...
Mjit Posted August 23, 2019 Report Share Posted August 23, 2019 19 hours ago, Pete Lewis said: front wheel bearings have 0.002" to 0.008" endfloat OK, fag packet out again... So end float is 0.002" to 0.008" (0.05mm to 0.2mm) at the bearing. The bearing is ~2" diameter/1" radius (50.8mm/25.4mm), so that would give an angle of between 0.113 and 0.451 degrees. A standard 13" wheel has a radius of 6.5" (165.1mm) and standard 155R80 tyrs have a sidewall height of 4.9" (124.5mm), giving a total radius of 289.6mm. So an acceptable end float would give between 0.57mm and 2.23mm at the edge of the tyre. I'm not sure you'd see 0.57mm, but would certainly be able to feel it. 2.23mm you'd be able to see as well as feel. It sounds like you might be at the top end of, or just over tollerance so as has been said try taking the wheel off, adding another few dents to the grease cap getting it off, removing the split pin and tightening a fraction. It probably WON'T require a full flat or tightening - there are 2 split pin holes through the tip of the stub axle and I'd guess just tightening till you can use the other one will be enough. Reassemble and rock the wheel again, making sure you can still at least feel some rocking*. * Early in my Spitfire ownership days I had the friendly local MOT station tell me my car had passed but "the front wheel bearings were a little loose, but rather than fail you we just nipped them up". Thankfully a Triumph brake disk and calipar are strong-enought to keep the drivers side wheel on the car while you turn left off the (thankfully congested) motorway after the outer bearing has welded itself to the stub axle, snapping it in the middle and leaving JUST enough to support the inner bearing. The AA man arrived, jacked the car up to take a look...and the wheel promptly fell off. Link to comment Share on other sites More sharing options...
Tanky Posted September 6, 2019 Author Report Share Posted September 6, 2019 Thanks guys. I'm putting "eNRY" away for the winter this weekend and I have a big jobs list (below) from my trip to Duxford... I am sure there will be more questions from me, so please bear with me........ Thanks again Charlie 1 Link to comment Share on other sites More sharing options...
daverclasper Posted September 6, 2019 Report Share Posted September 6, 2019 (edited) Hi Tanky. I think if you can use car over winter sometimes it's beneficial (these cars don't like standing). that also gives the opportunity do do, some of those jobs one at time. This helps with showing any specific improvements/worse things, related to what you have just done. It could be a bit of a jigsaw determining what's causing any (possible/likely), issues, if you have replaced parts/adjusted stuff, all at the same time. I think Dave Edited September 6, 2019 by daverclasper Link to comment Share on other sites More sharing options...
Tanky Posted September 11, 2019 Author Report Share Posted September 11, 2019 Hmmm. Interesting Mr Bond.... Link to comment Share on other sites More sharing options...
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