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Cam Chain and tensioner Mon Oct 21, 2013 2:51 pm
TIV
Silver member
Yesterday I checked the tappet clearance on my K75 and as it turned out, there is no need for adjustment. Between 0.15 and 0.20 on the intake side and between 0.20 and 0.25 on the exhaust.
While doing this I noticed that the cam chain is kind of loose on the cam wheels. There seems to be a play in the mechanism and the chain is slack, you can rotate one cam slightly before the other moves and visa versa. I read somewhere that the cam chain tensioner is controlled by a spring and oil pressure. Could this be normal when there is no oil pressure?
With only 40.000 km on the clock I wouldn´t have thought that there was anything wrong with the cam chain, but this strikes me as odd.
Please take a look at this video an tell me what you think:
While doing this I noticed that the cam chain is kind of loose on the cam wheels. There seems to be a play in the mechanism and the chain is slack, you can rotate one cam slightly before the other moves and visa versa. I read somewhere that the cam chain tensioner is controlled by a spring and oil pressure. Could this be normal when there is no oil pressure?
With only 40.000 km on the clock I wouldn´t have thought that there was anything wrong with the cam chain, but this strikes me as odd.
Please take a look at this video an tell me what you think:
Last edited by TIV on Mon Oct 21, 2013 7:23 pm; edited 1 time in total
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1936 Harley Davidsson 750 (sold), 1964 BMW R69S (sold), 1973 Suzuki RM400 (sold), 1972 Triumph Bonneville (sold), 1971 BSA Thunderbolt (sold), 1972 BSA Lightning (sold), 1977 Yamaha XS650 (sold), 1971, BMW R75/5 (sold), 1973 BMW R75/6 (sold), 1984 BMW R100RT 1992 Yamaha FJ1200 ABS (sold), 1990 Harley Davidson Electra Glide (sold)
1990 BMW K75RT Ex-Police (owned now)
2004 BMW R1150RT iABS (owned now)
Cheers TIV
