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Water pump bolts???????

Discussion in 'Small Block Tech' started by 71Skylark1384, Nov 10, 2014.

  1. 71Skylark1384

    71Skylark1384 Platinum Level Contributor

    Ok, so story starts with this, Replaced the intake manifold gasket, everything goes to sh#t....so I get coolant all over the engine coming back from a drive after the replacement of the gasket for the intake manifold. looks like its from the top radiator hose. Replaced that and grinded off all the rust on the male ends. that leak stops but I still have coolant all over the engine after a drive. Buddy says it's probably the water pump, so I cough up 22 bucks and get a new one from Oriely's. I am taking off this pump and seeing that these bolts are gettofied. Tell me this is not standard for these bolts to have multiple washers. :shock:

    ***finding more and more about this car each time I work on it, ooohhh the stories it could tell I bet****
    [​IMG]
    [​IMG]
    [​IMG]
     
  2. TheSilverBuick

    TheSilverBuick In the Middle of No Where

    Welcome to old cars? The stories many of them could tell if they could talk indeed.
     
  3. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    The washers are probably because the bolts are the wrong length, and that is what was used. Water pumps almost always leak out of the weep hole under the main shaft. The bearing goes, the shaft wobbles and eats the seal. Just be glad you didn't break any of the small bolts as that is very common. Use anti seize on all your new bolts.
     
  4. 71Skylark1384

    71Skylark1384 Platinum Level Contributor

    I did notice that some small bolts were missing, I assume the owner before me had broken some of the bolts. I was extra careful taking off the bolts. I read that they are prone to snap off.:eek2:

    would anyone know if the local auto store may have those bolts????
     
  5. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    The local hardware store will have them. I don't know the correct lengths, but it shouldn't be hard to figure out. USE ANTI SEIZE on all of them.
     
  6. 71Skylark1384

    71Skylark1384 Platinum Level Contributor

    I've read in other threads that I should put RTV on the threads to make it seal better.

    also when you say "ANTI SEIZE" do you mean lock tight?
     
  7. gstewart

    gstewart Well-Known Member

    u need to use a sealant on the long bolts because they actually enter the water jacket.
     
  8. gstewart

    gstewart Well-Known Member

    NO. Anti seize on the short bolts.
     
  9. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    No I mean anti seize like this,

    http://www.amazon.com/Permatex-8007...415667333&sr=1-2&keywords=anti-seize+compound

    The bolts are steel and they go through the water pump and timing cover. They have a tendency to corrode and seize which is why the small ones break.
     
  10. racenu

    racenu Well-Known Member

    i had to tap some of my 1/4 bolts out to 5/16, if you break any off it may be better to take out the rad so you have room to drill out the broken bolts...if you break any or the threads are messed up.

    Word of caution with after market pumps, when you tighten the bolts on the waterpump make sure you can turn the shaft on the waterpump, i have installed some that the impeller isn't pushed on far enough on the shaft so the impeller actually came in contact with the housing and the pump wouldnt turn or would grind. TA performance sells ones that are excellent. Gord
     
  11. SteeveeDee

    SteeveeDee Orange Acres

    Yes, they are prone to snapping off due to galvanic corrosion. They are 1/4-20 thread, common as dirt. I replaced my water pump recently, and one of the bolts didn't torque up like it should. It's been several weeks, and now the loose one is seeping, so I had to buy a Heli-Coil kit today to replace that thread in the timing chain cover. This kind of thing comes with the territory on old cars, but FWIW, I've made this repair in the '80s on Buicks, Oldsmobiles and Ford cars (and trucks, in the latter case).

    BTW, I noticed a few weeks ago that O'Reillys offers a veteran's discount. It is 10%. Ask for details at the counter! As many vehicles as I have (I'm down to 5 now), that is a huge deal, as I do almost all of my own repairs and maintenance.
     
  12. 71Skylark1384

    71Skylark1384 Platinum Level Contributor

    Thanks for the Info, and They do offer a veterans discount, it helped out buying these parts. :grin:
     
  13. 71Skylark1384

    71Skylark1384 Platinum Level Contributor

    So Finished taking off the old pump, and I noticed a difference in the old and new pump
    [​IMG]

    I can almost guarantee that I ordered the right one but maybe I didn't. This is the part number of the new one. 58-112
    [​IMG]
     
  14. SteeveeDee

    SteeveeDee Orange Acres

    Thanks for your service. I'm always here to help anyone who needs it, (hopefully) providing correct information.
     
  15. mrolds69

    mrolds69 "The Cure"

    I'm not sure what you mean by the difference. If it's the studs vs the threads...you need to remove them from the old pump and put them on the new pump.
     
  16. 71Skylark1384

    71Skylark1384 Platinum Level Contributor

    Yes, the studs....I did try to remove them but no luck. Are they pressed in?:Do No:
     
  17. ap1672

    ap1672 Silver Level contributor

    The studs are screwed in.
    Two nuts can be threaded onto the stud and run snug/tight against each other. (jambnut)
    This will lock the nuts on the stud.
    Then you should be able to unscrew the stud from the waterpump.
    repeat four times.
     
  18. 71Skylark1384

    71Skylark1384 Platinum Level Contributor

    HHmmmmmmm, I need to verify those studs, guess I'll check it out in the morning.
     
  19. BrianinStLouis

    BrianinStLouis Silver Level contributor

    See attached pictures. This is what can happen if you buy a cheap rebuilt unit.

    My pump, AKA aluminum lathe, with less than 1000 miles, started leaking through the weep hole. Good thing it was going in for a rebuild...

    No, I didn't hear a thing.





    View attachment 298538 View attachment 298539
     
  20. pbr400

    pbr400 68GS400

    Motormite (the Help division of Dorman) makes the studs as a part number 23733 if you can't get the old ones loose. The parts store should have them.
    Patrick
     

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