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Search found 578 matches

by jwonder
Thu Nov 24, 2022 8:56 pm
Forum: Vintage (1948-1969) Motorcycles
Topic: Vintage purchase advice please
Replies: 7
Views: 235

Re: Vintage purchase advice please

Gary, If you are just going to ride it I would not be too worried about all the correctness issues that R68 mentions. I agree with him by the way because I am an avid collector and rabid about correctness, but there are many great riders out there that you will enjoy for thousands of miles. Other th...
by jwonder
Mon Nov 21, 2022 7:50 pm
Forum: Vintage (1948-1969) Motorcycles
Topic: R26 seat spring help
Replies: 4
Views: 197

Re: R26 seat spring help

I did the same as Andrew.
by jwonder
Sun Nov 20, 2022 10:25 pm
Forum: Vintage (1948-1969) Motorcycles
Topic: R51/3 exhaust crossover pipe with sump-bolt cut-away
Replies: 5
Views: 242

Re: R51/3 exhaust crossover pipe with sump-bolt cut-away

Grant, I am sure max BMW has them as he bought all the inventory. The issue is that they may not know what it is. Vech should be on here soon to tell you the part #.
by jwonder
Sun Nov 20, 2022 4:06 pm
Forum: Vintage (1948-1969) Motorcycles
Topic: R69S pistons
Replies: 13
Views: 931

Re: R69S pistons

Great to hear!!! It works almost every time.

Also, that’s one mama of a heat gun!!! I like it!!
by jwonder
Fri Nov 18, 2022 10:53 pm
Forum: Vintage (1948-1969) Motorcycles
Topic: New breather plate on 20 degree cam gear
Replies: 9
Views: 342

Re: New breather plate on 20 degree cam gear

Rodolfo, do you have oil on the tray in the rear of the engine?
by jwonder
Fri Nov 18, 2022 7:38 pm
Forum: Vintage (1948-1969) Motorcycles
Topic: R50S Restoration
Replies: 18
Views: 836

Re: R50S Restoration

I happen to live relatively close to Jan Withagen and I will have my engine case measured. He uses a set of dummy shafts for this procedure. Using the bearings will not result in an accurate measurement because of the inherent slop in roller bearings. I am very curious what the result will be. Luck...
by jwonder
Thu Nov 17, 2022 8:33 pm
Forum: Vintage (1948-1969) Motorcycles
Topic: R50S Restoration
Replies: 18
Views: 836

Re: R50S Restoration

That was the bearing that came out. I used it for my tool. That was also the front cast iron carrier that came out with broken ears. I machined it down slightly to fit in the block.

Buy the -2 gearset and enjoy life!!! 😄😄
by jwonder
Thu Nov 17, 2022 4:37 pm
Forum: Vintage (1948-1969) Motorcycles
Topic: R50S Restoration
Replies: 18
Views: 836

Re: R50S Restoration

Scott, Jan knows his stuff, and going with the 6207 C3 M is never a bad thing. As for the gears, I do not prescribe to the "the block changes dimension" argument, I just need to see real facts on that one. This means that if you go with what is stamped on the case, and BMW measured right during thei...
by jwonder
Thu Nov 17, 2022 3:34 pm
Forum: Vintage (1948-1969) Motorcycles
Topic: R50S Restoration
Replies: 18
Views: 836

Re: R50S Restoration

I'm working on a '61 R50S and I have a couple of questions. I was told the 20207 rear spherical roller bearing is not the way to go on R50S' and R69S' these days. These was a 20207 in there before and the crank needed to go out to be redone. I'm being told the 6207 M (C3) is the way to go now. Is t...
by jwonder
Thu Nov 17, 2022 2:27 pm
Forum: Vintage (1948-1969) Motorcycles
Topic: R69S pistons
Replies: 13
Views: 931

Re: R69S pistons

From the looks of the piston bet it was slapping back and forth in the cylinder. We’ll see what the other side looks like. Rt side heads stuck on (That side had decent compression). Bikes supposedly been sitting forever. Over the next few days I’ll hit it with some penetrating fluid & try again Jim...