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Thread: oil changes in an R90/6 vs R75/7

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  1. #1
    Rally Rat
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    oil changes in an R90/6 vs R75/7

    I am given to understand there are certain differences in the oil filter fitment between the R75/7 and the R90/6.

    before I break something, can someone give me some pointers?

  2. #2
    Registered User donbmw's Avatar
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    I have a 75 R90 and 2 R65 (80 & 82). Both models use the same filter. The R65's have only one cover that holds the filter were the R90 has the outer cover and the inner cover that holds the filter. I would assume the R 75 would be the same as the R65's and R100/7 with out oil coolers.

    Don
    1975 R90/6, 1980 and 1982 R65, !959 TR3A Triumph Car

  3. #3
    Rally Rat
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    right, I did some research since then... the 90/6 in 1974 had the flatside filter cover. which means no 2000 dollar o-ring.

    I just know that making a mistake on the filter arrangements can be... expensive. so it's really important to me to get it right.

  4. #4
    Registered User donbmw's Avatar
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    I have had my 82 R65 since new and it has only been in the last few years that i heard about this $2000.00 oring. Was and BMWRA and have been a MOA member for over 25 years never saw in any of the publications about this back before the internet. Pesonally if you go back together the way BMW installed it there should not be and problems. Metal washer, Oring, gasket and cover. If you fill the oring is not sealing enough add another metal washer.

    Don
    1975 R90/6, 1980 and 1982 R65, !959 TR3A Triumph Car

  5. #5
    Administrator 20774's Avatar
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    Quote Originally Posted by donbmw View Post
    Metal washer, Oring, gasket and cover. If you fill the oring is not sealing enough add another metal washer.
    I think we determined that the /6 does not have the metal washer and $2000 o-ring stack up. The filter is sealed with a separate nut/washer when you take the flat-sided cover off. About the only thing the cover needs is the gasket to prevent oil from leaking to the outside.

    Anton covers it all here: http://www.largiader.com/tech/filters/
    Kurt -- Forum Administrator ---> Resources and Links Thread <---
    '78 R100/7 & '69 R69S & '52 R25/2
    mine-ineye-deatheah-pielayah-jooa-kalayus. oolah-minane-hay-meeriah-kal-oyus-algay-a-thaykin', buddy!

  6. #6
    Registered User donbmw's Avatar
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    Quote Originally Posted by 20774 View Post
    I think we determined that the /6 does not have the metal washer and $2000 o-ring stack up. The filter is sealed with a separate nut/washer when you take the flat-sided cover off. About the only thing the cover needs is the gasket to prevent oil from leaking to the outside.

    Anton covers it all here: http://www.largiader.com/tech/filters/

    The OP was asking about both.
    1975 R90/6, 1980 and 1982 R65, !959 TR3A Triumph Car

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