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Thread: 83 GS1100E RH crankshaft oil seal replacement?

  1. #1
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    Default 83 GS1100E RH crankshaft oil seal replacement?

    Anyone know if the right hand crankshaft oil seal can be replaced without splitting the cases on a 1983 GS1100E? Looks like mine has developed a small leak and needs replacing.

    TIA,
    Ron
    When I die, just cremate me and put me in my GS tank. That way I can go through these carbs, one more time!


    2020 Yamaha Tracer 900GT
    1978 GS1000C - May 2021 BOTM
    1983 GS1100E - aka: the ratbike
    1981 GS1100E - very slow work in progress!
    1985 GS550E - might never get to it!

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    Do you watch much TV? There's an ad on there for Flex Seal. Get some and spray on where the leak is and then next weekend you can be "that guy" who brought his GS to a rally for repairs.
    Larry

    '79 GS 1000E
    '93 Honda ST 1100 SOLD-- now residing in Arizona.
    '18 Triumph Tiger 800 (gone too soon)
    '19 Triumph Tiger 800 Christmas 2018 to me from me.

  3. #3
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    Thanks Larry! Right now it's just keeping the ignition lightly lubed! Bring your wrenches and I "might" let you work on it!
    Ron
    When I die, just cremate me and put me in my GS tank. That way I can go through these carbs, one more time!


    2020 Yamaha Tracer 900GT
    1978 GS1000C - May 2021 BOTM
    1983 GS1100E - aka: the ratbike
    1981 GS1100E - very slow work in progress!
    1985 GS550E - might never get to it!

  4. #4
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    Anyone replaced this seal?
    Ron
    When I die, just cremate me and put me in my GS tank. That way I can go through these carbs, one more time!


    2020 Yamaha Tracer 900GT
    1978 GS1000C - May 2021 BOTM
    1983 GS1100E - aka: the ratbike
    1981 GS1100E - very slow work in progress!
    1985 GS550E - might never get to it!

  5. #5
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    Quote Originally Posted by 1978GS750E View Post
    Anyone replaced this seal?
    I've done it on a GS850, but not specifically an 1100E.

    On the eight fiddy, it does not require splitting the cases or anything drastic, and I'm preeeeeeeeeeety darn sure the 1100E wouldn't be any different at all. I used an arrangement of a long 8mm bolt, some washers, a large socket that will fit over the crank and reach the seal, along a few nuts to gently push the seal into place rather than hammering it in. I used a thin smear of case sealer around the outer diameter of the seal, but I don't know if that's strictly necessary.

    One caveat: examine the seal carefully under high magnification; you'll find a teensy weensy arrow indicating the direction of shaft rotation. On my bike, and almost certainly yours, this will mean that the seal will be installed "inside-out" from how you expect.

    Guess how I learned this...

    Also, pay attention to how deep the original seal is installed. It's possible to push in the new one way too far.
    1983 GS850G, Cosmos Blue.
    2005 KLR685, Aztec Pink - Turd II.3, the ReReReTurdening
    2015 Yamaha FJ-09, Magma Red Power Corrupts...
    Eat more venison.

    Please provide details. The GSR Hive Mind is nearly omniscient, but not yet clairvoyant.

    Celeriter equita, converteque saepe.

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    Thanks Brian!

    Now if Partzilla comes thru with their 2nd day air shipping promise..............the stars align perfectly...........and........

    I "may" have a non-leaker in Bedford! (At least from that area!)
    Ron
    When I die, just cremate me and put me in my GS tank. That way I can go through these carbs, one more time!


    2020 Yamaha Tracer 900GT
    1978 GS1000C - May 2021 BOTM
    1983 GS1100E - aka: the ratbike
    1981 GS1100E - very slow work in progress!
    1985 GS550E - might never get to it!

  7. #7
    bwringer's Avatar
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    The seal part number is the same on your 1100E as my GS850, so I strongly suspect the process is identical.
    1983 GS850G, Cosmos Blue.
    2005 KLR685, Aztec Pink - Turd II.3, the ReReReTurdening
    2015 Yamaha FJ-09, Magma Red Power Corrupts...
    Eat more venison.

    Please provide details. The GSR Hive Mind is nearly omniscient, but not yet clairvoyant.

    Celeriter equita, converteque saepe.

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    Quote Originally Posted by bwringer View Post
    One caveat: examine the seal carefully under high magnification; you'll find a teensy weensy arrow indicating the direction of shaft rotation. On my bike, and almost certainly yours, this will mean that the seal will be installed "inside-out" from how you expect.

    Guess how I learned this...
    This is better than rhe reversely-flowed Mikuni jets...
    GS1000G '81

  9. #9
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    This is timely for me as I am going after the last leak on my 82 GS1100E, hoo-rah.

    So I took off the old one which involved carefully drilling through the outside edge using a set screw bit that would stop itself - there is only about 8 or 10mm clearance behind it where I drilled. Then using two pair of vice grips, one attached to the screw straight on, and the 2nd at a right angle attached to the adjuster screw of the first allowed enough room to smack the 2nd one with a hammer, and off it came (engine quite warm from a ride not sure it helps).

    Now I read up on installation like this thread and another where Rapid Ray says the tension spring on the seal goes to the inside and sure enough the arrow direction as bwringer points out shows that to be the correct orientation. Dang! Mine evidently was in backwards, so per the picture, the new one on the left goes in properly as shown, metal side out. The right side shows it as removed, and the seal damage & peek at the spring.

    The workshop manual section 7-44 shows the only picture I can find and though grainy, it is definitely rubber side out.... odd.

    As for installation I don't want to have the center hang up and get damaged as I push in the seal so I'm looking at ways to do this properly. I like bwringer's idea of slowly pushing it in with a makeshift jig and not hammering it. The largest socket I have is 32mm and it's too small, I may have to get some pipe.



    Last edited by oldGSfan; 07-11-2021 at 10:50 PM.
    Tom

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    Yeah, those grainy darksome photos in the manuals just cheese me right off. Especially when they're showing you something ridiculously obvious like that locating pin in your example, and they have a true talent for skipping actual crucial information.

    Nothing at all in the manual mentions you have to install the seal "backwards". AAAARRRGGGGHHH!

    In the modern era, Youtube mechanics have a similar genius for omitting that one desperately needed crucial detail. I need to see exactly how that clip is aligned, and how to release it... aaaaaand in the two seconds it's in view, he turns the camera around so all I get is a blurry shot of beard and boogers, coupled with the obligatory wheezing.
    1983 GS850G, Cosmos Blue.
    2005 KLR685, Aztec Pink - Turd II.3, the ReReReTurdening
    2015 Yamaha FJ-09, Magma Red Power Corrupts...
    Eat more venison.

    Please provide details. The GSR Hive Mind is nearly omniscient, but not yet clairvoyant.

    Celeriter equita, converteque saepe.

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