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My R69S Conversion
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- Posts: 71
- Joined: Fri Oct 27, 2006 3:00 am
- Been thanked: 2 times
My R69S Conversion
’75 R90/6 engine, ’74 trans, 32/10 ratio (3.20) then July 2020 37/11 (3.36, for sidecar) rear drive, custom driveshaft, /5 headlight bucket, Heinrich tank, Wixom fairing & bags.
I have added dual discs the same size as a GSXR 750/1000 fitted to /6 front hubs custom cut down to allow for fitment of wire wheels, aluminum wheels, R90S engine emblems (not pictured), R80G/S oil pan & bash plate (just for fun), brake m/c from ’88 RS/RT, air horn, sidecar springs and new dampers.
Once I figure out how to resize the pictures I have of my conversion I will post them
This site says my pictures are too large.
President, VBMWO
Re: My R69S Conversion
If you need to resize pictures, there are several free SW that will make it for you, but the simplest solution is to email you the pics: those will be automatically resized or the option to reduce the size will be given to you.
1974 R90S
- cbclemmens
- Posts: 228
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- Location: Apollo, PA
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Re: My R69S Conversion
Craig
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- Posts: 30
- Joined: Thu Sep 10, 2020 6:22 pm
Re: My R69S Conversion
why did you have to cut down the stock hub ? there IS plenty of room for a std. 4 rib hub off a /6-S model.
Harry
- Fred Heiler
- Posts: 19
- Joined: Mon Aug 07, 2017 4:20 pm
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Re: My R69S Conversion
How was that addressed on your conversion? I've seen a bunch of photos now that show the air cleaner housing fitting perfectly on top of the trans, and I'm guessing that most folks grind a little off the top of the housing, but I don't want to do that unless I hear there's no other way.
Looking forward to hearing from you, Fred Heiler
1967 BMW R60
1967 BMW 1500 (VW)
1971 BMW R75/5
1964 Cobra 427
1965 Porsche 356 SC
1986 Porsche 911
- schrader7032
- Posts: 9086
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- Location: San Antonio, TX
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Re: My R69S Conversion
The spring 2005 issue of the club magazine has an article on putting a /5 engine into a /2 frame. There is a mention of clearance issues with the top of the air cleaner housing. However, it seems the author mentions a possible issue with the seat plate on the /2 frame. The fix was to remove the seat plate and weld into a different place to provide for clearance.
Just where does your engine hit the frame? I don't know the real estate very well, but it yours is touching the frame and not the seat plate, then maybe there's something else wrong.
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.
- Fred Heiler
- Posts: 19
- Joined: Mon Aug 07, 2017 4:20 pm
- Been thanked: 5 times
Re: My R69S Conversion
Thanks so much for the tip about the conversion bike article. I'll read that thoroughly before I do anything more.
Thanks again, Fred Heiler
1967 BMW R60
1967 BMW 1500 (VW)
1971 BMW R75/5
1964 Cobra 427
1965 Porsche 356 SC
1986 Porsche 911
- schrader7032
- Posts: 9086
- Joined: Fri Oct 27, 2006 3:00 am
- Location: San Antonio, TX
- Has thanked: 3 times
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Re: My R69S Conversion
Looks like you're between the proverbial rock and a hard place. I would not want to damage the existing filter covering, although maybe they're a "dime a dozen" somewhere. I can visualize some filter housings that were custom made and were more sloped at the back side. I think in that case, the customizer eliminated the housing for holding a filter and resorted to K&N pods instead.
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.