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Sept 12, 2020 14:12:39 GMT
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Does anybody know a good rear caliper that has a cable handbrake and as near as damn it, a 48mm piston? It’s for my mk1 Escort and need this size piston to lock the rear wheels with the hydraulic handbrake. Mk7 Transit will fit with a bit of work but weigh an absolute tonne. I was just wondering if anyone knows of a suitable alternative that is lighter. Cheers Phil
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Rear Calipersballbagbagins
@ballbagbagins
Club Retro Rides Member 164
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Sept 12, 2020 14:25:44 GMT
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Not sure on piston size but mk5 golf gti has a cable operated handbrake.
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Sept 12, 2020 16:10:29 GMT
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Not sure on piston size but mk5 golf gti has a cable operated handbrake. Thanks Ballbag, but they’re only 41mm piston. They need to be a bit bigger sadly.
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Sept 12, 2020 16:38:21 GMT
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Hi, Can you not change the size of the handbrake master cylinder to work better with the 41mm calipers?
Colin
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mk2cossie
Club Retro Rides Member
Posts: 2,946
Club RR Member Number: 77
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Rear Calipersmk2cossie
@mk2cossie
Club Retro Rides Member 77
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Sept 12, 2020 19:09:20 GMT
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Surely a smaller caliper piston will make the hydraulic handbrake work better for the same given travel? What calipers to you have on there at the moment that aren't working well?
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Sept 12, 2020 23:43:39 GMT
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Hi, Can you not change the size of the handbrake master cylinder to work better with the 41mm calipers? Colin I think I would need to put a smaller master cylinder bore in to get more power to the caliper. This would give me more travel at the handbrake lever. I’m already close to the limit with the travel so I don’t think this will work. I think 😁.
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Sept 12, 2020 23:50:10 GMT
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Surely a smaller caliper piston will make the hydraulic handbrake work better for the same given travel? What calipers to you have on there at the moment that aren't working well? I’m currently running Fiesta front calipers on the rear with a 48mm piston, but this has no cable facility. Everyone I know who has used the Sierra rear caliper with 43mm pistons says they do not lock the wheels adequately. The system I run now is well balanced (with a pressure reduced for the rear before the handbrake master cylinder) and locks the wheels with sticky tires. I don’t think the smaller piston would work else all cars would have smaller pistons on the front calipers where the greater force is needed. I think😁.
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mk2cossie
Club Retro Rides Member
Posts: 2,946
Club RR Member Number: 77
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Rear Calipersmk2cossie
@mk2cossie
Club Retro Rides Member 77
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Sept 13, 2020 0:03:52 GMT
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Surely a smaller caliper piston will make the hydraulic handbrake work better for the same given travel? What calipers to you have on there at the moment that aren't working well? I’m currently running Fiesta front calipers on the rear with a 48mm piston, but this has no cable facility. Everyone I know who has used the Sierra rear caliper with 43mm pistons says they do not lock the wheels adequately. The system I run now is well balanced (with a pressure reduced for the rear before the handbrake master cylinder) and locks the wheels with sticky tires. I don’t think the smaller piston would work else all cars would have smaller pistons on the front calipers where the greater force is needed. I think😁. Apart from having dual circuit master cylinders Are they referring to the mechanical handbrake arm not being up to locking the wheels? If so, there is very few that will do that. But if you are using the hydraulic handbrake in a setup that utilises the hydraulic braking part, then I see no reason that Sierra/Focus or whatever rear calipers shouldn't work fine. There is always Citroen Xantia or BX front calipers to consider possibly
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Sept 13, 2020 7:03:59 GMT
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I’m currently running Fiesta front calipers on the rear with a 48mm piston, but this has no cable facility. Everyone I know who has used the Sierra rear caliper with 43mm pistons says they do not lock the wheels adequately. The system I run now is well balanced (with a pressure reduced for the rear before the handbrake master cylinder) and locks the wheels with sticky tires. I don’t think the smaller piston would work else all cars would have smaller pistons on the front calipers where the greater force is needed. I think😁. Apart from having dual circuit master cylinders Are they referring to the mechanical handbrake arm not being up to locking the wheels? If so, there is very few that will do that. But if you are using the hydraulic handbrake in a setup that utilises the hydraulic braking part, then I see no reason that Sierra/Focus or whatever rear calipers shouldn't work fine. There is always Citroen Xantia or BX front calipers to consider possibly With the Sierra calipers the wheels wont lock adequately with hydraulic action. The front Xantia caliper is a good shout. I’d even started looking at the on ebay last night. I need to investigate how the cable mechanism works as it looks a bit odd
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Sept 13, 2020 9:41:10 GMT
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Looking again the Xantia handbrake is simple enough. 57 mm piston too so should be fine with my inline reducer. The bummer is my late fathers Xantia that had been in the field next to my parents house for the last 11 years was sent to the scrap about 3 weeks ago.
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Rich
Club Retro Rides Member
Posts: 6,233
Club RR Member Number: 160
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Rear CalipersRich
@foxmcintyre
Club Retro Rides Member 160
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Sept 13, 2020 9:58:03 GMT
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Looking again the Xantia handbrake is simple enough. 57 mm piston too so should be fine with my inline reducer. The bummer is my late fathers Xantia that had been in the field next to my parents house for the last 11 years was sent to the scrap about 3 weeks ago. Just bear in mind Xantia’s don’t use brake fluid, they seem to be fine with brake fluid but if you use second hand ones make sure they are well flushed out of LHM. Hose fittings may be different too as they didn’t use traditional brake piping.
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Sept 13, 2020 16:52:56 GMT
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Looking again the Xantia handbrake is simple enough. 57 mm piston too so should be fine with my inline reducer. The bummer is my late fathers Xantia that had been in the field next to my parents house for the last 11 years was sent to the scrap about 3 weeks ago. Just bear in mind Xantia’s don’t use brake fluid, they seem to be fine with brake fluid but if you use second hand ones make sure they are well flushed out of LHM. Hose fittings may be different too as they didn’t use traditional brake piping. Thanks Rich. I did consider the LHM and decided it probably won’t be an issue. But I did not consider the pipe connections. I need to dig a bit deeper
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Last Edit: Sept 13, 2020 16:53:38 GMT by jonsey
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Sept 19, 2020 4:29:11 GMT
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Does anybody know a good rear caliper that has a cable handbrake and as near as damn it, a 48mm piston? It’s for my mk1 Escort and need this size piston to lock the rear wheels with the hydraulic handbrake. Mk7 Transit will fit with a bit of work but weigh an absolute tonne. I was just wondering if anyone knows of a suitable alternative that is lighter. Cheers Phil Movano B from 2010 onwards. Also Renault Master and Nissan NV400 (same van). Might still be a bit heavy though. Cheers George
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Last Edit: Sept 19, 2020 5:37:28 GMT by contrarian
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Sept 19, 2020 6:45:10 GMT
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Cheers George. I’ll take a look 👍
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Midas
Part of things
Posts: 505
Club RR Member Number: 14
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Rear CalipersMidas
@midas
Club Retro Rides Member 14
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Sept 19, 2020 7:51:21 GMT
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Just bear in mind Xantia’s don’t use brake fluid, they seem to be fine with brake fluid but if you use second hand ones make sure they are well flushed out of LHM. Hose fittings may be different too as they didn’t use traditional brake piping. Thanks Rich. I did consider the LHM and decided it probably won’t be an issue. But I did not consider the pipe connections. I need to dig a bit deeper Assuming they are the same as BX calipers the hose connection is M10 fine from memory.
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Sept 19, 2020 13:00:01 GMT
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Thanks Rich. I did consider the LHM and decided it probably won’t be an issue. But I did not consider the pipe connections. I need to dig a bit deeper Assuming they are the same as BX calipers the hose connection is M10 fine from memory. Thanks Midas. Do you know if they are 3/8 pipe or larger? Just incase the flare may be to small to seal.
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Rich
Club Retro Rides Member
Posts: 6,233
Club RR Member Number: 160
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Rear CalipersRich
@foxmcintyre
Club Retro Rides Member 160
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Sept 19, 2020 14:27:32 GMT
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Assuming they are the same as BX calipers the hose connection is M10 fine from memory. Thanks Midas. Do you know if they are 3/8 pipe or larger? Just incase the flare may be to small to seal. Flexi-line into the calipers, they are front calipers after all . Looks like it may just be a double flare looking at photos.
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Sept 19, 2020 14:37:39 GMT
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Thanks Midas. Do you know if they are 3/8 pipe or larger? Just incase the flare may be to small to seal. Flexi-line into the calipers, they are front calipers after all . Looks like it may just be a double flare looking at photos. Oh yes. Flexi. I was thinking old Fords where the caliper has copper out, then flexi and then copper on the car. Fixed not sliding caliper.
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Last Edit: Sept 19, 2020 14:37:59 GMT by jonsey
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Sept 19, 2020 18:01:42 GMT
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jag xf and s type rear might work, only 45mm piston but looks lightweight. Have attached pic hopefully to let you view off vehicle.
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Sept 19, 2020 18:50:58 GMT
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I'd be looking at a smaller handbrake master with better leverage ratio, otherwise you will end up with massive imbalance on the footbrake, these cars have been about long enough and been rallied enough there will probably be quite a few decent options off the shelf.
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