Search found 2 matches

by zjacker
Wed Mar 04, 2026 2:42 am
Forum: Post 1970 Airheads
Topic: 1978 R100RS Engine Noise
Replies: 7
Views: 33274

Re: 1978 R100RS Engine Noise

What a saga, but it sounds like you’ve ended up with a properly sorted R100RS at last — chasing that narrow-band noise led to a new timing chain, a misaligned cam sprocket fix, full engine rebuild with new TBS bearings , gearbox refresh, final drive seals, rocker bearings, and even uncovering the oi...
by zjacker
Wed Mar 04, 2026 2:40 am
Forum: Post 1970 Airheads
Topic: R80 Mono Caliper Alignment V2.0
Replies: 20
Views: 6542

Re: R80 Mono Caliper Alignment V2.0

On a 1990 BMW R80 Monolever the single front disc should normally be on the left, with the axle orientation matching the factory setup, so if yours has the disc on the right and the spindle inserted from the opposite side it strongly suggests the front end has been rebuilt at some point using parts ...