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Search found 117 matches

by vechorik1373
Thu Aug 18, 2022 10:45 am
Forum: Vintage (1948-1969) Motorcycles
Topic: Should 1967 R69S have low or high shouldered rims?
Replies: 7
Views: 171

Re: Should 1967 R69S have low or high shouldered rims?

If you fit a side car to any 1955 - 1968 BMW, According to BMW service bulletins, you are supposed to run STEEL rims. The aluminum rims are much more fragile, and warp more easily. Think about this. Once you fit a side car, it is no longer a motorcycle. Motorcycles lean in corners, side car rigs are...
by vechorik1373
Wed Aug 17, 2022 8:50 am
Forum: Vintage (1948-1969) Motorcycles
Topic: throttle
Replies: 4
Views: 190

Re: throttle

Concerning the 1955 - 1969 throttles: "Did BMW make a quicker throttle with the same appearance?" The answer is no. That is not to say that you cannot make a change in the speed of the throttle response. It would not be easy to do, but it could be done. In the photo, is the cam gear and chain that p...
by vechorik1373
Tue Aug 16, 2022 8:00 am
Forum: Vintage (1948-1969) Motorcycles
Topic: This is why you need to clean/change your slingers!
Replies: 31
Views: 1342

Re: This is why you need to clean/change your slingers!

Jim, You asked me: What would be the best way to attach the magnets if an aluminum oil pan is used? Instead of putting the magnet directly in the oil pan, put it on top of the steel, screened oil pickup. Then, when you do drop the pan to clean the "hair" off the magnet, you will have to remove the p...
by vechorik1373
Mon Aug 15, 2022 2:33 pm
Forum: Vintage (1948-1969) Motorcycles
Topic: Piston dimension?
Replies: 2
Views: 96

Re: Piston dimension?

You wrote: Working on a 1958 R60 vin 619236. Good piston shows 72.45mm (1st oversize?) Yes, that is first over. But let me inform and caution you. First of all, pistons are measured nominally. What that means is, a 72.45, or a 72.47 or a 72.49 are all nominally considered to be 72.5, first oversize....
by vechorik1373
Mon Aug 15, 2022 9:32 am
Forum: Vintage (1948-1969) Motorcycles
Topic: This is why you need to clean/change your slingers!
Replies: 31
Views: 1342

Re: This is why you need to clean/change your slingers!

To answer everyone's questions You want to use only the high temp magnets. The oil temp will kill the strength of a magnet not designed for high temps. You want to put them inside the pan. That will expose ALL the sides to the oil. Yes you would put them on the outside, and no, they will NOT fall of...
by vechorik1373
Sun Aug 14, 2022 9:02 am
Forum: Vintage (1948-1969) Motorcycles
Topic: This is why you need to clean/change your slingers!
Replies: 31
Views: 1342

Re: This is why you need to clean/change your slingers!

This is where I bought POWERFUL nickel plated rare earth magnets.

https://www.kjmagnetics.com/
by vechorik1373
Sat Aug 13, 2022 9:05 am
Forum: Vintage (1948-1969) Motorcycles
Topic: This is why you need to clean/change your slingers!
Replies: 31
Views: 1342

Re: To prevent slinger filling, do the following.

What fills up the slingers, by centrifugal force, is the wear of the rings and cylinders. If you put a magnet on the scraped out sludge, you will find that the magnet will pick put 100% of the sludge. There are two things you can do, to slow this process WAY down. The first is to have the cylinder w...
by vechorik1373
Thu Aug 11, 2022 4:36 pm
Forum: Vintage (1948-1969) Motorcycles
Topic: A question about spark plugs
Replies: 21
Views: 4956

Re: A question about spark plugs

I told all my customers, and anyone else that will listen, the following: One should avoid heavily tickling the carbs. If you must tickle, a quick "blip" on each one should suffice. If you hold the ticklers down until gas pours out, you can get the plug wet with gas. My experience has been, and I ha...
by vechorik1373
Wed Aug 03, 2022 8:38 pm
Forum: Antique (1923-1945) Motorcycles
Topic: R 4
Replies: 5
Views: 346

Re: R 4

Charlie, I can safely say, that even on a patched asphalt back road, it will "beat the shit out of you" at any moderate or high speed. ;) I never ran mine off the road, but I can imagine what it would be like. (painful at our age) One thing I learned years ago, with the hard tail BMW's (or any brand...
by vechorik1373
Wed Aug 03, 2022 8:24 pm
Forum: Vintage (1948-1969) Motorcycles
Topic: 1965 R69s steering head tapered bearings
Replies: 11
Views: 458

Re: 1965 R69s steering head tapered bearings

A silly question, but: You DID remove the lower ball race from the base of the steering stem, didn't you? If not, then that is why it appears not to fit. I sold, and personally installed LOTS of the tapered 31 42 1 000 000 tapered bearings for over 20 years and I never encountered any problems with ...