crankshaft pulley removal
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crankshaft pulley removal

  1. #1
    Senior Member 69 wriedt devil's Avatar
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    Default crankshaft hub removal

    ok, so ive removed my blower pulley off the crankshaft and removed the big bolt from the crank, and cant seem to get the crank hub just outside the timing chain cover off! its pressed on right? Not threaded on. oh yeah its a 69 chevy 427. thanks
    Last edited by 69 wriedt devil; 04-29-2012 at 01:42 PM.

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    Hoodys and swim trunks Elkidminoltu's Avatar
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    You need to buy/rent a balancer puller from an auto parts store. 2 or 3 bolts screw into it and a larger center screw sits against the crank nose. When you tighten the center bolt it'll pull the balancer off.

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    Senior Member 69 wriedt devil's Avatar
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    yeah exactly, well i borrowed a generic puller from my neighbor but just about broke it. its not a balancer it's a crank hub.Click image for larger version. 

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    Last edited by 69 wriedt devil; 04-29-2012 at 01:39 PM.

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    gn7
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    If the puller you used looks like this one,


    It may be time to step up to a real puller. Besides, when you go to reinstall it you're going to need something like this anyway. NO, YOU CANNOT JUST PULL IT ON WITH THE CRANK BOLT!!!!


    Heating the hub with a propane torch will help.
    When you go to reistall it, coat the crank snout with some anti sieze. It makes removing it the next time much easier.



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    Senior Member 69 wriedt devil's Avatar
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    thanks gn7, you've always been a big help!! any ideas where to find a good one like that?

  8. #6
    gn7
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    Quote Originally Posted by 69 wriedt flattie View Post
    thanks gn7, you've always been a big help!! any ideas where to find a good one like that?
    Jegs or Summit sell them.

    If you're feeling wealthy this week, or if it still won't come off, there is always this one.

    Its cool. If you buy one, see if you can swing a deal for another at 50% off. I loved to have one for 1/2 price




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    Last edited by gn7; 04-29-2012 at 02:35 PM.

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    Senior Member EVILFORCE's Avatar
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    CUM ON BOB. You put it on with a BFH.
    No Fool Like A Old Fool is there?

  10. #8
    "Need For Speed" Gearhead's Avatar
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    Bob - That Webster piece is really nice. Thanks for posting this.

    I too have run into a couple of drive hubs and balancers that have been difficult to remove over the years. Some of these problems may be due to (1) misinstallation, too tight or too loose or (2) hold down bolt coming loose letting balancer move and seize.

    The more recent was a mis-installed blower hub. We fabricated a simple device where a regular 2 ton jack was mounted between two steel plates. One plate had a hole in the middle for the ram to protrude and also had holes drilled to mount to the hub or balancer. The "back" end was a solid round plate with 1/2" grade eight all thread attaching the two plates while sandwiching the jack in between. Then just opertate the jack and pull the balancer/hub. Some heat may be needed. This is relatively inexpensive tool just requiring some fab time, but not near as cool as that Webster unit.

    I am a tool freak and don't know if Bob's posting is a good thing for my pocketbook

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    Canoe Jockey Michael Thomas's Avatar
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    I dont see all that well...anybody see a keyway? could it be galded
    "If you can't dazzle them with brilliance...Baffle them with bullshit"

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    Senior Member 69 wriedt devil's Avatar
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    thanks all, i found them on summit, yeah that thing is outta my price range!! haha

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    gn7
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    Quote Originally Posted by Michael Thomas View Post
    I dont see all that well...anybody see a keyway? could it be galded
    Looks like 2. One stock 3/16 at about 5:00, and a 1/4 at about 1:00.
    Its most likely galled or its rusted. Also, if its a aftermarket crank, many of them tend to be on the very snug side, specially with non stock dampers and hubs.



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    If you are able to move the engine, might suggest you take it to local machine shop. If you yourself do not have the proper tools, the small charge if any will be worth it. I ran into a similar situation trying to remove damper I had not installed myself. Ended up taking boat to shop where I bought my parts. Found after finally getting hub off, the aftermarket crank snout was oversized and had in excess of .005 interference with the damper hub. Suggest if using aftermarket cranks and dampers, it is a good idea to mike both before trying to put them together. Good luck.

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