Post by: brodsord on January 11, 2020, 04:21:47 PM
I have a cb750f2 build on the go at the moment,
Bought as a rolling frame and a box of bits. Been slowly putting her back together and one of the scores of bits missing was rear master cylinder.
Managed to find one in the states needing overhaul.
I’ve drilled the old piston out but managed to balls it all up by drilling the first part of the cylinder to wide so piston rubber has to much play.
Has anyone got any solutions for this problem?
Is it possible to get the cylinder bored out slightly bigger then a new sleeve inserted and welded at that the top ?
Thanks
Post by: Rob62 on January 11, 2020, 05:34:55 PM
Post by: brodsord on January 11, 2020, 05:36:56 PM
https://www.ebay.co.uk/itm/Honda-CB750-CB-750-F2-1992-2000-Rear-Brake-Braking-Master-Cylinder-Linkage/312822958309?hash=item48d5b388e5:g:on4AAOSwh~pduHRV (https://www.ebay.co.uk/itm/Honda-CB750-CB-750-F2-1992-2000-Rear-Brake-Braking-Master-Cylinder-Linkage/312822958309?hash=item48d5b388e5:g:on4AAOSwh~pduHRV)Thanks Rob, it’s not that one tho. It’s for a 1978f2 (https://uploads.tapatalk-cdn.com/20200111/9fbb224a9c4bc4d9a87b9fa5ab30e1bd.jpg)(https://uploads.tapatalk-cdn.com/20200111/9fbb224a9c4bc4d9a87b9fa5ab30e1bd.jpg)
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Post by: Bryanj on January 11, 2020, 05:38:59 PM
Post by: brodsord on January 11, 2020, 05:47:23 PM
I think a GL 1000 one will fit and if you dont want concouse one of the cheap chinese scooter rears can be made to fit with simple bracketsThanks Bryan, the GL looks the same bolt positions although I think the fluid reservoir will not fit correctly into the area behind the were rear brake/foot pegs connect onto, the ally manifold in picture (https://uploads.tapatalk-cdn.com/20200111/e812bc149237355c6336b97a8e2b6b03.plist)
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Post by: Rob62 on January 11, 2020, 11:05:12 PM
https://www.ebay.co.uk/itm/Honda-CB750-CB-750-F2-1992-2000-Rear-Brake-Braking-Master-Cylinder-Linkage/312822958309?hash=item48d5b388e5:g:on4AAOSwh~pduHRV (https://www.ebay.co.uk/itm/Honda-CB750-CB-750-F2-1992-2000-Rear-Brake-Braking-Master-Cylinder-Linkage/312822958309?hash=item48d5b388e5:g:on4AAOSwh~pduHRV)Thanks Rob, it’s not that one tho. It’s for a 1978f2
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Oops, sorry mate....I didn’t read carefully. I would be tempted to do as bryanj suggests and use either a new Chinese unit or try to find a used jap alternative at an auto jumble. Good luck with it.
Post by: brodsord on January 11, 2020, 11:29:27 PM
Thanks Robhttps://www.ebay.co.uk/itm/Honda-CB750-CB-750-F2-1992-2000-Rear-Brake-Braking-Master-Cylinder-Linkage/312822958309?hash=item48d5b388e5:g:on4AAOSwh~pduHRV (https://www.ebay.co.uk/itm/Honda-CB750-CB-750-F2-1992-2000-Rear-Brake-Braking-Master-Cylinder-Linkage/312822958309?hash=item48d5b388e5:g:on4AAOSwh~pduHRV)Thanks Rob, it’s not that one tho. It’s for a 1978f2
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Oops, sorry mate....I didn’t read carefully. I would be tempted to do as bryanj suggests and use either a new Chinese unit or try to find a used jap alternative at an auto jumble. Good luck with it.
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Post by: royhall on January 12, 2020, 11:49:56 AM
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Post by: Bryanj on January 12, 2020, 03:08:18 PM
Post by: royhall on January 12, 2020, 04:30:20 PM
Post by: Bryanj on January 12, 2020, 04:36:52 PM
Post by: royhall on January 12, 2020, 04:54:26 PM