vaughan Posted January 6, 2007 Report Share Posted January 6, 2007 Hello Again, Im after more advice on the OSSA TR350 1977 im restoring, Can anyone let me know how many wheel bearings there are suposed to be in the rear wheel and in what configuration, also Spacer thickness. I think my wheel has been modified to take 4 x 6201 bearings, 2 on each side. Also I have not been able to find a replacement Clutch Push Rod, does any ony have the specifications for one so i can have one made up. Lastly im looking for a replacement Skid Plate. Many Thanks to everyone that has replied to my othe questions you have all been a great help. www.OSSA-restoration.piczo.com Vaughan. Quote Link to comment Share on other sites More sharing options...
woody Posted January 6, 2007 Report Share Posted January 6, 2007 There are 3 rear wheel bearings as standard, 2 on the sprocket side and 1 on the brake. This is with the original dished sprocket fitted. If you have the flat sprocket and carrier conversion then there is an extra bearing in the carrier itself, so you have 3 on the sprocket side and 1 on the brake side. No Ossa MAR wheel I have seen has had 2 bearings on the brake side. 6201 is the right bearing size. Length of the spacer depends on whether you have the original dished sprocket or the flat conversion, with the dished sprocket the spacer is obviously longer. As there is no spacer on the brake side, it is just a case of measuring the gap on the other for the length of spacer required. Clutch push rod is actually 2 rods with a ball bearing in between. Don't know the sizes off hand but if I can find one I'll measure it. Both rods are the same size. Original style skid plate you'll have to hunt around for as no-one stocks them but Steve Goode has a new old stock Renthal which is just as good, the only difference being it doesn't have the raised sides like the original but that means that it is possible to remove the side casings without dropping the bashplate like you have to with the original type. It is probably just the plate itself and you would need the front mounting brackets from the original plate. Quote Link to comment Share on other sites More sharing options...
vaughan Posted January 7, 2007 Author Report Share Posted January 7, 2007 Thanks for the advice Woody, I will get a Bash Plate from Steve, I have a dished sprockett the previous owner has fitted an extra bearing and reduced the outside spacer, I can return it to the original spec without too much trouble. I would appreciate the measurements of the Push rod, for a good sized bag of Sweets im sure the Lad's in our Toolroom at work will knock me one up. Thanks again, Vaughan. Quote Link to comment Share on other sites More sharing options...
woody Posted January 7, 2007 Report Share Posted January 7, 2007 I'll have a look for one and measure it next time I'm out in the shed, sometime during the week probably Alternatively, you could try Ellastone Offroad, A&B Autos, Mainly Spanish or Sammy Miller, as all have used Ossa parts and would most likely have pushrods Quote Link to comment Share on other sites More sharing options...
woody Posted January 13, 2007 Report Share Posted January 13, 2007 In case you still need it the pushrod measurement is 112mm long and 5.7mm diameter (6mm?) Measured with a digital vernier. That is the length of one pushrod. There are two of them, both the same size. Don't know the diameter of the ball bearing that sits inbetween them as I couldn't find one but obviously 6mm will be the largerst it is. Quote Link to comment Share on other sites More sharing options...
vaughan Posted January 15, 2007 Author Report Share Posted January 15, 2007 In case you still need it the pushrod measurement is 112mm long and 5.7mm diameter (6mm?) Measured with a digital vernier. That is the length of one pushrod. There are two of them, both the same size. Don't know the diameter of the ball bearing that sits inbetween them as I couldn't find one but obviously 6mm will be the largerst it is. Cheers Woody, I ordered one from a bloke in th USA 'Alex Snoop' Quote Link to comment Share on other sites More sharing options...
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