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Thread: Oil Filter Wrench

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  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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    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.

  7. #7
    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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    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

  9. #9
    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

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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

  11. #11
    Alps Adventurer GlobalRider's Avatar
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    Quote Originally Posted by lkchris View Post
    74.5 actually
    The "D" measurement must be the diameter of the can then.

    As for the "stuck filter syndrome" that I read elsewhere in this thread, they do not have to be overtightened to be "stuck".

    I torque my filters and the one time it was stuck on was because I used oil on the seal. My filters sit for a year on my overseas BMW. Since then, I apply a thin smear of Dow Corning Vacuum Grease to the seal...and problem solved.

  12. #12
    Day Dreaming ... happy wanderer's Avatar
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    Quote Originally Posted by BC1100S View Post
    Gotta love wunderlich.
    Only 4 times more than what you need to pay!

    Go to Canadian Tire and buy a Mazda oil filter wrench for ten bucks.
    Or Bob's BMW. Same price.
    MJM - BeeCeeBeemers Motorcycle Club Vancouver B.C.
    '81 R80G/S, '82 R100RS, '00 R1100RT

  13. #13
    Alps Adventurer GlobalRider's Avatar
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    Quote Originally Posted by happy wanderer View Post
    Gotta love Wunderlich.
    You mean Wunderlich America who are just a distributor.

    That Hazet 2169 oil filter socket isn't even in the Wunderlich.de catalog.

    BTW, I have two of them. I believe I paid under $20 for them back in the day.

    I have both stamped steel and cast aluminum oil filter sockets. I much prefer the cast aluminum sockets for their fit.

  14. #14
    Left Coast Rider
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    Quote Originally Posted by happy wanderer View Post
    Gotta love wunderlich.
    Only 4 times more than what you need to pay!

    Go to Canadian Tire and buy a Mazda oil filter wrench for ten bucks.
    Or Bob's BMW. Same price.
    Too late. And I'm proud that I spent too much. Balances off the money I saved buying Fram filters. Kidding!

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