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Brake problems
Posted: 12 Oct 2020 13:25
by neillewis
Help! My 1981 Morini 500 has a dodgy front (RH) brake caliper. The pistons were seized so I applied heat to free them successfully but when put back on the bike they now leak fluid. I believe there are seals in the caliper which may have unsealed as a result of the heat. I urgently need advice on this. I've tried to source a replacement seal kit and a replacement caliper to no avail. I also need replacement bleed nipples but can't find those either. Can anyone please help me out here?
Neil
Re: Brake problems
Posted: 12 Oct 2020 17:26
by simonnorthroad
Fraction of a minute on Fleabay turned up 30 or 32mm piston dia. seal kits. Can't remember which you need
Ditto stainless bleed-nipples in all sizes.
Do you need more help than this?
Re: Brake problems
Posted: 12 Oct 2020 17:53
by 3potjohn
I was caught out when I first got my Sport as I did not realise there were ball bearings under the bleed nipples.These were corroded.I have stainless bleed nipples now but have never looked at the pistons.Yet!
John
Re: Brake problems
Posted: 12 Oct 2020 19:38
by Ming
Try RGM Norton
Re: Brake problems
Posted: 13 Oct 2020 02:36
by Canuck750
Storz Performance sell Grimeca caliper rebuild kits: pistons and O rings
admin@storzperf.com
https://www.storzperf.com/catalog/page34.html
Re: Brake problems
Posted: 13 Oct 2020 06:50
by MickeyMoto
If the calipers are the same as the earlier 31/2 the part number according to my book is 43 09 21. Mdina have the kits, but I'd check first as it says 41mm on the description.
Re: Brake problems
Posted: 13 Oct 2020 09:55
by neillewis
Hi,
many thanks for the top tips everyone I'll get on it asap. Thanks again.
Neil