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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Damper Refurbishment
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<blockquote data-quote="powella" data-source="post: 101811" data-attributes="member: 1609"><p>Hi Chris</p><p>Like politicians who never answer a question directly there seems to be no definite reply to your enquiry - so read on .</p><p></p><p>A " Wellseal " has the looks and consistency of Shellac and is a very good sealer. No one outside of the electrical industry will know what you are talking about regarding Shellac and has`nt been heard of since Glovers Cables of Manchester used it in their Varnished Cambric insulation .</p><p></p><p>B Tap the small pin out and the top mount will unscrew from the top of the Piston Rod. This is threaded 5/16 inch BSF.</p><p></p><p>C For the Piston Rod seals you need " Sealmasters " Quad Ring seals ( sometimes called X seals ). These give 2 wiping edges per seal i.e the bottom lower left and the bottom lower right of the " X " give 2 edges.Two of these seals give 4 wiping edges. There is no need to replace any other seals .</p><p>Order Quad Ring Q4-013 NBR part number 09QR13N19.</p><p>Order for the filling plug Bonded Seal 1/8 inch BSP part number ( Concentrate on this one ! )</p><p> 57SM45020MS16N. Phone number is 02920490711 or the web www sealmasters co.uk.</p><p>The modern replacement 1/8th BSP Blanking Plug uses a 12mm spanner.these are obtainable for any plumbing shop.</p><p></p><p>D Already has one ( hydraulic )</p><p>E Have a go ! if you can unscrew the brass plug at the top the rest is easy and save yourself hundreds of pounds</p><p></p><p>Extras - the top Brass threaded plug is a 1 1/14 inch TAPER GAS thread .</p><p> use Paul`s idea of approx 3 inch x 2 inch bubble wrap round the outside of the piston body.</p><p> use Automatic Transmission Fluid to fill . If this proves to be too soft then go to 20 , 30 etc until the</p><p> ride is right .</p><p> the seals are 0.30 pence each and the bonded one 0.25 each.</p><p></p><p>Hope this helps - Regards Alan.</p></blockquote><p></p>
[QUOTE="powella, post: 101811, member: 1609"] Hi Chris Like politicians who never answer a question directly there seems to be no definite reply to your enquiry - so read on . A " Wellseal " has the looks and consistency of Shellac and is a very good sealer. No one outside of the electrical industry will know what you are talking about regarding Shellac and has`nt been heard of since Glovers Cables of Manchester used it in their Varnished Cambric insulation . B Tap the small pin out and the top mount will unscrew from the top of the Piston Rod. This is threaded 5/16 inch BSF. C For the Piston Rod seals you need " Sealmasters " Quad Ring seals ( sometimes called X seals ). These give 2 wiping edges per seal i.e the bottom lower left and the bottom lower right of the " X " give 2 edges.Two of these seals give 4 wiping edges. There is no need to replace any other seals . Order Quad Ring Q4-013 NBR part number 09QR13N19. Order for the filling plug Bonded Seal 1/8 inch BSP part number ( Concentrate on this one ! ) 57SM45020MS16N. Phone number is 02920490711 or the web www sealmasters co.uk. The modern replacement 1/8th BSP Blanking Plug uses a 12mm spanner.these are obtainable for any plumbing shop. D Already has one ( hydraulic ) E Have a go ! if you can unscrew the brass plug at the top the rest is easy and save yourself hundreds of pounds Extras - the top Brass threaded plug is a 1 1/14 inch TAPER GAS thread . use Paul`s idea of approx 3 inch x 2 inch bubble wrap round the outside of the piston body. use Automatic Transmission Fluid to fill . If this proves to be too soft then go to 20 , 30 etc until the ride is right . the seals are 0.30 pence each and the bonded one 0.25 each. Hope this helps - Regards Alan. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Damper Refurbishment
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