mossy7 Posted May 30, 2017 Share Posted May 30, 2017 So.. In my efforts to find an annoying click from the front O/S as the wheel rotates, I find the front O/S disc is warped. Replace both today and discover the front O/S inner bearing seal is perished. There is still a small amount of movement in the disc as it rotates. This means it will eventually warp the disc, so I need to sort this perished seal. So.. What's involved? Whole new hub assembly? Both sides obviously... Or what? .. Sounding expensive already. Help! Link to comment Share on other sites More sharing options...
SM25T Posted May 30, 2017 Share Posted May 30, 2017 Was it the old style felt seal or newer type rubber seal ? Either way you can just replace the seal. Is there play in the bearings ... Is that what you are seeing on the disc edge running out ? Link to comment Share on other sites More sharing options...
elie boone Posted May 30, 2017 Share Posted May 30, 2017 If the new disc is not running true then i would have a look at the hub surface to the disc. Link to comment Share on other sites More sharing options...
mossy7 Posted June 2, 2017 Author Share Posted June 2, 2017 Hub surface to disc seems fine, no contamination and a clean fit. I've purchased two new (Best do both sides) bearing kits from CC and will let you know how I get on. As an aside it's a rubber seal and the new kits are apparently uprated versions as they look naff all like the ones on the car! Link to comment Share on other sites More sharing options...
SM25T Posted June 2, 2017 Share Posted June 2, 2017 Have you got the upgrade hub kit or just bearing kit. The original design used a tiny outer bearing. Link to comment Share on other sites More sharing options...
mossy7 Posted June 2, 2017 Author Share Posted June 2, 2017 It's just the bearing kit at the moment. May end up a false economy though, as could end up needing the whole hub kit, but I hope not. Link to comment Share on other sites More sharing options...
SM25T Posted June 2, 2017 Share Posted June 2, 2017 As long as the bearings you have bought are the same size as the ones fitted ! The hub upgrade involves the same size bearing for the inner and outer positions. Link to comment Share on other sites More sharing options...
mossy7 Posted June 2, 2017 Author Share Posted June 2, 2017 Aarrrggghhhh.... !!!Ok, I'm assured its the right bearings for 2003 onwards. Mine is a 2012 kit, registered 2015 so fingers crossed! Link to comment Share on other sites More sharing options...
SM25T Posted June 2, 2017 Share Posted June 2, 2017 Yes ... I think the parallel stub shaft was fitted from 2003. Surprised that you said your new parts looked very different from the originals's. Link to comment Share on other sites More sharing options...
mossy7 Posted June 2, 2017 Author Share Posted June 2, 2017 It may be they look different because they are knackered! Link to comment Share on other sites More sharing options...
SM25T Posted June 2, 2017 Share Posted June 2, 2017 Make sure you work plenty of grease into the new bearings. Don't just fill the void in the hub .... it won't get in to the bearings from here. Work it in to the bearings with your fingers. Have seen many Caterham where bearings weren't greased from new builds ! Link to comment Share on other sites More sharing options...
mossy7 Posted June 2, 2017 Author Share Posted June 2, 2017 Thanks for the advice. Here's hoping new bearings and discs will stop the contact on caliper from hub carrier.. ( if correct term but which wheel is bolted to) once on each rotation causing the ticking noise which was driving me crazy. Link to comment Share on other sites More sharing options...
SM25T Posted June 2, 2017 Share Posted June 2, 2017 Do make sure rear face of disc and outer face of hub are spotlessly clean on assembly. Fraction of a mm of grit here equates to a big run out at disc circumference. Link to comment Share on other sites More sharing options...
mossy7 Posted June 2, 2017 Author Share Posted June 2, 2017 Noted.. Thanks again for the advice. Link to comment Share on other sites More sharing options...
elie boone Posted June 3, 2017 Share Posted June 3, 2017 You can always take your hub to a machine shop to see if the mating surface with the disc is good or mount the disc on the hub with 1Nm and see if the disc runs out then torque up to +/- 4.5Nm and check again Link to comment Share on other sites More sharing options...
mossy7 Posted June 3, 2017 Author Share Posted June 3, 2017 So..why is the calliper so close to the hub carrier!!! Link to comment Share on other sites More sharing options...
elie boone Posted June 3, 2017 Share Posted June 3, 2017 To maximize space. Link to comment Share on other sites More sharing options...
SM25T Posted June 3, 2017 Share Posted June 3, 2017 Is the caliper centred abut the disc ? If not .... are the bearing cups driven fully home both sides of the central register. Are any washers required on the caliper fixing bolts to position the caliper correctly ? Link to comment Share on other sites More sharing options...
mossy7 Posted June 4, 2017 Author Share Posted June 4, 2017 Dear Mr SM25T,please tell me more about washers to correctly position the calliper... Can this be adjusted vertically away from the hub slightly? I don't know much about mechanics but boy is his car teaching me! Link to comment Share on other sites More sharing options...
SM25T Posted June 4, 2017 Share Posted June 4, 2017 I changed from standard Triumph front calipers to lightweight and pretty HiSpec 4 pot calipers. You can put flat washers between the mounting ears and caliper to even up the clearance between disc and caliper if necessary. Obviously same number and thickness on each bolt. Link to comment Share on other sites More sharing options...
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