Home Forums 2-Cycle Racing Stuck hortsmen 2disc

This topic contains 8 replies, has 4 voices, and was last updated by  Walt Gifford 2 years, 8 months ago.

Viewing 9 posts - 1 through 9 (of 9 total)
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  • #44580

    Tom Petalino
    Participant

    Ok, so I’m trying to remove my clutch from the crank and it seems to be stuck. I got the starter nut off ok but then stripped the threads on my clutch puller trying to get the clutch off. I’m going to spray pb blaster on it for a few days and try again. Should I try to heat the crank or the clutch side some? Or am I asking for trouble?

    #44625

    Jay Sinon
    Participant

    I would only use heat as a last resort there is a chance that you could change the tensile strength of the metal or possible warp the clutch. Which clutch puller were you using the Horstman one that pulls with 5 bolts or the aftermarket puller that pulls off of the spring perches  or a regular 2 or 3 jar puller? What exactly stripped? were you using air tools?

    When you do get it off and you get ready to reinstall it, try installing it with no key and some valve grinding compound between the clutch and the crank. Spin the clutch by hand on the crank until both surfaces match then clean the valve grinding compound off and install the key and reinstall the clutch this will mate the two surfaces better and help it seat flush on the crank which should make it stay on and remove better as there will not be a rocking motion between the two pieces that could cause a binding or shearing on the key.

    TaG Sr.

    #44661

    Tom Petalino
    Participant

    <p style=”text-align: left;”>The puller was a new comet racing 5 bolt puller. The threads on the puller stripped when pressure was applied. I was not using air tools , just an adjustable wrench. I’m going to tap the puller one size larger , should be fine for my next atempt.</p>

    #44662

    Greg Wright
    Participant

    Did you smack the center bolt of the puller with a steel hammer? If not you should.

    Greg Wright
    Rapid Racing Inc.

    "When in doubt Gas it, It won't help but it ends the suspense."

    #44686

    Tom Petalino
    Participant

    I was afraid to hit the crank thinking it would bend or damage it.

    #44726

    Greg Wright
    Participant

    You want to smack it squarely and sharply, this is normal operating procedure when pulling something off of a tapered shaft.

    Greg Wright
    Rapid Racing Inc.

    "When in doubt Gas it, It won't help but it ends the suspense."

    #45012

    Tom Petalino
    Participant

    Thanks Greg. I tapped it with a hammer and it popped right off. Learn something new every day.

    #45040

    Greg Wright
    Participant

    You’re very welcome. Like I said earlier, that’s the way it’s done.

    Greg Wright
    Rapid Racing Inc.

    "When in doubt Gas it, It won't help but it ends the suspense."

    #46204

    Walt Gifford
    Participant

    Tom, 28 Ft. Lbs. next time.

    Gif

    FAA certified jet engine and aircraft technician,
    Nicholson Speedway class champion 2001,
    Yamaha KT100 Service Center,
    41 years karting experience

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