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Rusted out holes on block-mounted water pump

Discussion in 'The Hokey Ass Message Board' started by 38caddy, Feb 24, 2007.

  1. 38caddy
    Joined: Mar 15, 2006
    Posts: 62

    38caddy
    Member
    from RI

    Ok, maybe this will highlight my lack of experience, but I was working on the car and encountered this and it concerns me. I removed my water pump from my Cadillac flathead. Supprisingly, the bolts came out really easy. I took the pump off and realized that 3 of the 5 holes on the block were rusted out. There was a crap-load of rust all in there and 1 of the bolts had rusted in half the long way. Eventually, I will have the block worked over by a machine shop and I imagine they would be able to fix this, but I have no idea if its economical. If its not cheap (relatively speaking, of couse) or not possible to fix something like this, I would like to know now so I can get a new block. Anyway, I am attaching some pics. On a side note, I know why there is so much rust. I the wide shot, you can see the hose from the heater core with water still in it. The rest of the water in there must have leaked out or, more likely, evaporated out over the last 30-40 years since it was last started.
     

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  2. Mudslinger
    Joined: Aug 3, 2005
    Posts: 1,964

    Mudslinger
    Member

    You should probably get the machine shop to answer that.
    Are all the head bolts in good shape?
     
  3. 38caddy
    Joined: Mar 15, 2006
    Posts: 62

    38caddy
    Member
    from RI

    The head/head bolts seem good from the exterior, but I haven't take them off yet. I can turn the crank about 1/4 turn before it gets stuck, so it seems like its not rusted up on the inside.
     
  4. 302GMC
    Joined: Dec 15, 2005
    Posts: 6,645

    302GMC
    Member
    from Idaho

    Complete the teardown - it may have some other problems that can't be seen until the machine shop has baked or hot tanked the block. Hopefully, it hasn't frozen and cracked.
     

  5. 50dodge4x4
    Joined: Aug 7, 2004
    Posts: 3,535

    50dodge4x4
    Member

    Just a thought, if that area rusted tht badly, what condition will the rest of the water jacket walls be in? Were it mine, I think I would be looking for another block. Gene
     
  6. publicenemy1925
    Joined: Feb 4, 2007
    Posts: 3,187

    publicenemy1925
    Member
    from OKC, OK

    Take it and get it acid dipped. It will eat all the rust leaving a fresh block and it cost 40 bucks here. We do it on all the motors we build.
     

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