1971 R50/5 Whine

[chasbmw]

There are at least 3 different types of swinging arms on Twinshock bikes, so make sure you have the right amount of oil.

[daz]

There are at least 3 different types of swinging arms on Twinshock bikes, so make sure you have the right amount of oil.

Will do Charles. Since time has passed since this incident, I seem to recall the exact same thing happening on one of my airheads in the distant past. I've had an oilhead and several K bikes in the mix and just get plain forgetful. I'm not as old as Duane but Truman was President when I was born.

By the way, I located the four bolts, three whole washers and that two piece washer. It's all cleaned up and new short bolts are on the way. I convinced my vender, Mathias BMW, to put those bolts in an envelope so I don't have to pay UPS fees greater than the value of the bolts.

[Deleted User 62]

Curious, where did you find the bolts?

[daz]

Curious, where did you find the bolts?

"I convinced my vender, Mathias BMW, to put those bolts in an envelope so I don't have to pay UPS fees greater than the value of the bolts." He had them in stock.
Mathias BMW Cycle Sales, New Philadelphia, Ohio. Even though there was a BMW dealer nearer to my home I began to deal with Gene when I bought a "salvage" K75 years ago. His store was one of the old kind. NOT a boutique. The service area was accessible down a narrow set of wooded steps or through a sliding door from a gravel driveway. A short man could touch the beams of the ceiling in the service area without a stretch. Anyhow, he had a huge inventory of used and crashed bike parts. I spliced a wrecked frame onto my wrecked frame and with a lot of used parts and information from him was successful in bringing my K75RTP back to life.

Be a lot of postage to your place though Tim.

[Deleted User 62]

No, I mean where on your bike did the loose bolts finally end up, bottom of the swingarm tube ?

[Major Softie]

I'm not as old as Duane but Truman was President when I was born.

Ah, making me feel like a baby (an Eisenhower baby).

[ME 109]

I'm not as old as Duane but Truman was President when I was born.

Ah, making me feel like a baby (an Eisenhower baby).

Eisenhower, he was the bloke with the cherry tree wasn't he?
Strewth, that was ages ago.

[daz]

No, I mean where on your bike did the loose bolts finally end up, bottom of the swingarm tube ?

Ha! Sorry, Tim. One bolt was still in the boot. And pieces of a washer. Only one bolt was partially screwed in. The rest were in the shaft channel and surprisingly hard to fish out. Eventually I washed the whole deal down with kerosene and blew both ways with compressed air.

Without disassembly, only be feel, there seems to be NO play in the rear drive. It's solid and clean.