Search found 3877 matches

by SteveD
Tue May 21, 2024 8:28 am
Forum: Post 1970 Airheads
Topic: Front brake master cylinder.
Replies: 6
Views: 193

Re: Front brake master cylinder.

Yes due care to not splash it everywhere. My hoses are likely close to 20 years old, Venhill SS version. I'm unsure about the one way valve thing via lumen damage, more thinking it might be a little junk in the system.
by SteveD
Thu May 16, 2024 8:18 pm
Forum: Post 1970 Airheads
Topic: Embarking on 1977 R 100 RS restore, all comments welcome
Replies: 11
Views: 906

Re: Embarking on 1977 R 100 RS restore, all comments welcome

Good info that. Cheers.

Looking forward to the ongoing process.
by SteveD
Wed May 15, 2024 5:07 am
Forum: Post 1970 Airheads
Topic: Battery for R100RT
Replies: 15
Views: 2284

Re: Battery for R100RT

Deka etx16l. Cheaper than the orange one, fits nicely. I just changed my last one out @ 7-8 years. Just because...it was still working. Time for another one. 8.5 years this one lasted. :shock: :!: I replaced it with a 400CCA Deka. A tad taller, certainly larger but still able to slide in from the r...
by SteveD
Mon May 13, 2024 9:30 pm
Forum: Post 1970 Airheads
Topic: Front brake master cylinder.
Replies: 6
Views: 193

Re: Front brake master cylinder.

I recognise the gunge in the end too. I wonder if that indicates a slight leakage past the seals. Whatever, everything seems in good condition once cleaned up so it's going back as it is. I was wondering the same thing. Replacing the seal would be simple enough. However it only seems available with...
by SteveD
Mon May 13, 2024 2:51 am
Forum: Post 1970 Airheads
Topic: Front brake master cylinder.
Replies: 6
Views: 193

Re: Front brake master cylinder.

:D Brookes garage to the rescue. What a great resource his stuff is. :D https://brook.reams.me/bmw-motorcycle-rebuilds/1983-bmw-r100rs-rebuild-project-index/34-bmw-1983-r100rs-disassemble-inspect-rebuild-master-cylinders/ There is a front dust seal and large flat washer that are installed in the thr...
by SteveD
Mon May 13, 2024 2:00 am
Forum: Post 1970 Airheads
Topic: Front brake master cylinder.
Replies: 6
Views: 193

Front brake master cylinder.

My R100RS is an 11/1981 build. Handlebar mounted master cylinder, 13mm, changed from 15mm many years ago with a great improvement to feel. The lever travel had diminished recently, but still ok, so I removed the master cylinder to investigate. The master cylinder looked good, and I ensured the hole...
by SteveD
Sun May 12, 2024 10:46 am
Forum: Post 1970 Airheads
Topic: Testing the charging system.
Replies: 7
Views: 8037

Re: Testing the charging system.

Thanks @SteveD, helped me find a poor ground from the D- brush due to the cable being soldered too short and holding the brush off the rotor. Posts like this save a lot of time and money on troubleshooting and help us getting our bikes back on the road where they should be. Thanks a lot for taking ...
by SteveD
Mon May 06, 2024 5:33 am
Forum: Post 1970 Airheads
Topic: Today in the shed you did...
Replies: 114
Views: 32518

Re: Today in the shed you did...

Finally finished reassembling the RS (rear end yesterday) and it's ready to test ride.
The shed got a minor tidy up as stuff got put away! Still too messy though.
:shock: :lol:
by SteveD
Fri Apr 26, 2024 7:09 am
Forum: Post 1970 Airheads
Topic: Brembo caliper rebuild
Replies: 25
Views: 4880

Re: Brembo caliper rebuild

A clean and a couple of coats of caliper paint and they'll harden for a week or so until I fiddle further. https://photos.smugmug.com/Brembo-F08-rebuild/BMW-brakes/i-TvSnkLL/0/DNL36PL7pvW96XktN58r2j8wZThhxSwx2M2zXd6J9/XL/2024042621044193-9148985334153116451-XL.jpg What's so different about caliper ...
by SteveD
Wed Apr 24, 2024 7:53 am
Forum: Post 1970 Airheads
Topic: Brembo caliper rebuild
Replies: 25
Views: 4880

Re: Brembo caliper rebuild

+1 what Steved said. FWIW - my pistons were OK, but there was sludge in the caliper. Use only brake fluid to clean inside (some alcohol is alright but no mineral spirits, gas, etc.). I reinstalled my trans last week then stopped to replace the rear brake hose. I noticed the piston seal had herniate...