flathead47
New member
Hi... I picked up a '75 R90/6 last summer that overall had looked to be kept in excellent condition. However a couple weeks ago I cut the engine, and coasting into my parking spot heard a soft thump, thump, thump from the rear. Spinning the back wheel with the rear lifted, I can hear it once every rotation. But when I rotated the wheel just 30 degrees from any starting position and back, I hear a louder clunk in one direction, and a softer cadunk in the other. I pulled the boot from over the U-joint and all looks good there. 1:1 movement on both ends, and it's well lubricated. It's been suggested that nut on the rear drive pinion shaft may have come loose. I pulled the rear wheel off and found the gearbox oil weep hole had clogged, and the shoes and area in the drum pretty oily. So I'll have to have the bike towed to a mechanic and have things repaired.
I'm in Long Beach CA, and am wondering if anyone could recommend a local mechanic particularly experienced in working on these old the final drives, known for doing reliably good work. I'm considering Valdi in Torrence, and Irv Seaver in Irvine. I'm strapped for funds after popping for this otherwise well maintained old beast, so BMW Long Beach will most likely be beyond my present resources. But I do want to take it to an experienced mechanic who does quality 'affordable' work.
Thanks kindly for any thoughts on what may be causing this problem & all suggestions for a reliable reasonably local mechanic.
I'm in Long Beach CA, and am wondering if anyone could recommend a local mechanic particularly experienced in working on these old the final drives, known for doing reliably good work. I'm considering Valdi in Torrence, and Irv Seaver in Irvine. I'm strapped for funds after popping for this otherwise well maintained old beast, so BMW Long Beach will most likely be beyond my present resources. But I do want to take it to an experienced mechanic who does quality 'affordable' work.
Thanks kindly for any thoughts on what may be causing this problem & all suggestions for a reliable reasonably local mechanic.
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