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Thread: Oil filter for R90/6

  1. #1
    Gerard jagarra's Avatar
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    Oil filter for R90/6

    I bought some NOS filters some time back and opened one up to install on my 74 R90/6. Well it's different than the one I pulled out which was an aftermarket unit. This is an original BMW filter 11421253919, it doesn't have any rubber seal/grommet on the center hole, just a bare metal end with a hole in center, the after market units had a rubber seal at both ends. Is this filter OKAY to use???
    1994 R1100RS-(5/93)-,1974 R90/6 built 9/73,--1964 Triumph T100--1986 Concours

  2. #2
    Liaison 20774's Avatar
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    Near the bottom of Snowbum's page, he discusses the transition of oil filters:

    http://bmwmotorcycletech.info/Oil.htm

    As you can see, the -919 filter was eventually replaced by another filter and then replaced again. The /5/6/ filter arrangement is different than my /7...mine come with the rubber O-rings already installed. With the older filter setup, one usually had to order the O-rings separately. One also had to be careful that the old o-ring wasn't still stuck down in the guts of the canister.

    I suspect your filter is OK to use. I'd measure lengths to what you took out. Not sure I'd be comfortable reusing the O-rings from the old filter, though.
    Kurt -- Forum Liaison ---> 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!

  3. #3
    Gerard jagarra's Avatar
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    I got on line to the dealer, saw that there were o rings that went on both ends, from the price I guess there are reusable, so I ordered some. I have crash bars on my bike, so I had to pull the exhaust to get the filter out, what a PIA.

    In the mean time will use the last of the after market ones with the rubber bit, want to go to a tech session on Saturday.

    Went through all the OEM filters, even though all carried the same number 2 had the rubber on the end and 2 didn't.

    thanks

    gg
    Last edited by jagarra; 06-21-2018 at 09:17 PM.
    1994 R1100RS-(5/93)-,1974 R90/6 built 9/73,--1964 Triumph T100--1986 Concours

  4. #4
    Liaison 20774's Avatar
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    What brand crash bars do you have on the bike? I have bars on my /7 and don't have to remove anything to get the filter in/out. Worked fine with the straight filters...no real advance for the bendy filters.
    Kurt -- Forum Liaison ---> 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!

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