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Thread: Oil Filter Wrench

  1. #1
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    Oil Filter Wrench

    What size oil filter wrench does a 1997 R1100GS use?

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    Left Coast Rider
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  3. #3
    Registered User lkchris's Avatar
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    It's the same size as many Mercedes and VW and you ought to be able to find one for $10. For sure you do not have to use motorcycle sources.

    It's 74 mm, 14 flats.
    Kent Christensen
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    '12 R1200RT, '02 R1100S, '84 R80G/S

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    lkchris is correct, but I'll add a couple of thoughts. On my K75, the most commonly available plastic one wouldn't fit into the filter cavity, even though it was correctly sized for the filter. A second inexpensive metal one fit fine, but wouldn't grip the filter tightly enough. (On the K75, the filter hangs in the oil bath, so the canister is very slippery.) It was finally the BMW OEM wrench that gave me complete satisfaction.
    2000 R1100RT / 1987 K75C (RIP) / Santa Clarita, CA

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    I know I'm going to get reemed for this.
    And, It might not be the thing to do on a GS.

    I use an automotive filter. If I can find it I use a PureOne PL25230.
    It is about 1.5" taller, and sticks out from the bottom of the sump so I can get it with a conventional small filter wrench.
    Usually I don't even need a wrench, since it has the grippy coating on the end.

    Do not put one of these in a K bike inside the oil bath. The grippy stuff will loosen and come off in your oil eventually.
    Exterior applications only.

  6. #6
    Registered User GKman's Avatar
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    You can shoot a couple of self drilling metal screws through the wrench into the bottom of the filter.

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    Quote Originally Posted by GKman View Post
    You can shoot a couple of self drilling metal screws through the wrench into the bottom of the filter.
    I resorted to something like this to get my first filter out, which had apparently been installed by a gorilla. After that, I was very happy to have a wrench that just worked right.
    2000 R1100RT / 1987 K75C (RIP) / Santa Clarita, CA

  8. #8
    Registered User lkchris's Avatar
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    Quote Originally Posted by scott.lambert View Post
    I use an automotive filter.
    The OE filter has a bypass valve. You can see it. Does your "automotive" filter? Suppose it's set for the same pressure? Did you look up the specs?
    Kent Christensen
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    '12 R1200RT, '02 R1100S, '84 R80G/S

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    yeah, see, here we go...

    Quote Originally Posted by lkchris View Post
    The OE filter has a bypass valve. You can see it.
    yes
    Quote Originally Posted by lkchris View Post
    Does your "automotive" filter?
    yes
    Quote Originally Posted by lkchris View Post
    Suppose it's set for the same pressure?
    no
    Quote Originally Posted by lkchris View Post
    Did you look up the specs?
    yes

    it also has an anti-drainback valve.

    I know. But, it's fine, really.

  10. #10
    RD'nNH&AZ rdhudson's Avatar
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    I gotta read more carefully

    I thought it said "Oil Filter Wench" so I felt the $38 for the nice lady's service price was fine. Now that I see it says wRench and I gotta do it myself I'll check it out at wally world. Perhaps take my spare filter in to get a good fit?
    2002 F650GS, 1998 R1100R 75th anniversary edition, 1983 R80RT (just sold), 1959 R60 (in restoration), Honda CT90
    If you must make a mistake, make a new one each time.

  11. #11
    Alps Adventurer GlobalRider's Avatar
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    Quote Originally Posted by lkchris View Post
    It's the same size as many Mercedes and VW and you ought to be able to find one for $10.

    It's 74 mm, 14 flats.
    Possibly 76 mm?

    Its also used on Porsche oil filters OC 213 and OC 229.
    Attached Images Attached Images

  12. #12
    Registered User lkchris's Avatar
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    74.5 actually
    Kent Christensen
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    '12 R1200RT, '02 R1100S, '84 R80G/S

  13. #13
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    I know oil threads can go on for ages, but who'd have thought "what size oil filter wrench" could start such discussion?

    Since I happen to have two old filters and three wrenches handy, I took some measurements. All are mm across flats.

    Filters mm
    Purolator L10241 72.3
    Bosch D3330 72.4
    Wrenches
    Stamped metal 74.3
    Plastic - size "D" 74.2
    Hazet (BMW) 74.5
    2000 R1100RT / 1987 K75C (RIP) / Santa Clarita, CA

  14. #14
    Registered User dieselyoda's Avatar
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    Umnnn, BMW doesn't make filters. They aren't proprietary. Just in case you didn't know, BMW doesn't have it's own oil refinery either. I use Wix 57936 which are the OE for BMW. They cost me about $8.00 CDN by the case. On any given day it's 27 cents USAD or $12.00 USAD? The filter wrench is off the shelf and fits pretty good. If filter bypass is a concern, I would suggest knowing a good engine builder and fast.

    Just to mess things up, the only K&N on my R1100RT is the air filter. In think the story I have about my K&N oil filter is pretty common.

    I really like the comment about the PureOne PL25230. An extra inch would be awesome when you leave the filter on while the bike sits for six months, like in Canada.
    1997 R1100RT (Restored Basket Case) , 1981 KZ 440 LTD (Restored Basket Case)
    1986 K75S(the beutch), 1993 K1100RS (blown engine), 1997 Chev Short Box (4x4 with an LT1)
    "You can easily judge the character of a man by how he treats those who can do nothing for him."

  15. #15
    Alps Adventurer GlobalRider's Avatar
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    Quote Originally Posted by Dieselyoda View Post
    I use Wix 57936 which are the OE for BMW.
    Thats news to me.

    The BMW oil filters I buy at the dealer are Made in Austria and are 100% identical to the Mahle OC 91, which are Made in Austria.

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