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Thread: Stubborn Woodriff Key on Crank

  1. #1
    Registered User kwb210's Avatar
    Join Date
    Jul 2009
    Washington, the state

    Stubborn Woodriff Key on Crank

    I am replacing a timing chain and small sprocket on a 1984 R100 with about 125,000 miles of excellent care on the clock. The chain is slightly loose and the upper sprocket shows some wear - so - replace it before it causes a problem. The bearing came off easily with a puller. The sprocket was a real bear to get loose. Took a lot of pressure for it to give up its grip on the crankshaft. The only other one I have done I just gave the woodriff key a bit of pressure, a tap with a tiny little hammer, and it came out. This key will not move. I even held a flat punch against the end of it and gave a bit of a tap, nothing. The key sits low in the front and just slighly higher in the back. It will not budge. I am looking for some ideas on how to remove it. Considering a new woodriff key is $1.40 it is in the budget to replace(!!!). Thoughts
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    1977 R100/7 1971.1972.1972.1973 R75/5
    1974 R90/6 multiple boxes
    Airhead Revival
    "Objects in the mirror appear to be losing" unk

  2. #2
    IBA #44567 Ken F's Avatar
    Join Date
    Sep 2009
    SW, MO
    Heat. If not immeadiatly effective, try Alternative heat cycles. Soak in Kroil.
    I think heat causing the groove to expand will probably work for you.
    IBA #44567 Pres. Springfield BMW Roadriders
    "Two things are infinite: the universe and human stupidity; and I'm not sure about the the universe."
    -Albert Eienstein

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