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BMW R45 - an older look
- luca.stere
- Posts: 92
- Joined: Thu May 23, 2013 4:11 am
Electrics
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- Posts: 3
- Joined: Fri Aug 25, 2023 10:26 am
Re: BMW R45 - an older look
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- Posts: 3
- Joined: Fri Aug 25, 2023 10:26 am
Re: BMW R45 - an older look
It’s been used very little in the years preceding my “barn yard” discovery. Mint condition. The last year the left cylinder has started smoking whitish blue very badly only after riding 15km and the engine is hot. Sometimes it stops smoking. Very odd behavior. If I am descending a hill and use the engine to break it will cause it to start smoking. I’ve had different mechanics tell me different things. From old valve stem seals to pushrod seals to consumed piston rings to dirty carburetor. Possible cause leaving it on the side stand all winter causing the oil to stay in the left cylinder base.
Before I go dismantling the engine I would like to hear from other people’s experience. Having so few kilometers it is odd that it is already smoking.
- schrader7032
- Posts: 9058
- Joined: Fri Oct 27, 2006 3:00 am
- Location: San Antonio, TX
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Re: BMW R45 - an older look
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.
Re: BMW R45 - an older look
I would check the rings, a fairly simple job BUT, before you remove the exhaust clamps, they are a known weak spot. It is safer to cut them off and save the cost of renewing the threads on the heads.
Best wishes, Charlie.