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Need some water pump info

Discussion in 'Early CJ5 and CJ6 Tech' started by northernwheeler, Jun 22, 2006.

  1. northernwheeler

    northernwheeler New Member

    My water pump in my v6 finally gave up, and now I am having trouble finding a replacement. :(

    Here's the details:

    Dauntless v6 - casting 991503
    1971 (I think) - date code looks like 12*F0
    The old pump is 4.5" from pump mounting surface to fan mounting surface.

    The problem:

    I ordered one up, but when I recieved it I found it was only 3.5". I found a part number on the old one (31036) but I am being told this number does'nt work. The local places are having a hard time to find me a pump.

    Would anybody happen to have a part number so that I either order one or cross refrence it. Thanks
     
  2. jpflat2a

    jpflat2a what's that noise?

    try one for a 70 Buick 350
     
  3. Hippo393

    Hippo393 Jeepless

    I've got a spare used one if you're in a pinch. :)
     
  4. Cal

    Cal New Member

    TA Performance has them listed in thier catalog.
     
  5. Mcruff

    Mcruff Earlycj5 Machinist

    I just bought abrand new one at alocal mom and pop store about a year ago. They are the short design and not the later long nosed one. I think they are about 3 1/2" tall.
     
  6. northernwheeler

    northernwheeler New Member

    Cool, Thanks for the info guys. I will check into the 350 buick pump and see if it will work.

    McRuff - Are you saying that the pump, and therefore pulleys (I think thats spelled right) are from a later engine. With the short pump I have my pulleys contacts the water pump housing.

    I will try to get some pics posted. I can't belive something so simple is turning out so difficult.:rofl:
     
  7. northernwheeler

    northernwheeler New Member

    Here's a pic of my old pump (right) and the new one thats too short.
     
    Last edited: Sep 30, 2007
  8. Chris Insull

    Chris Insull All roads lead me back to the beach... 2023 Sponsor 2022 Sponsor

    FWIW, the pump I just replaced looks exactly like the new one you just received (from that angle). Trust me when I say "replace all hardware"... :rofl: :oops:
     
  9. sparky

    sparky Sandgroper Staff Member Founder

    Replace all hardware, meaning bolts?
     
  10. bigbirdcj

    bigbirdcj Member

    Quadratec sells a Flowcooler brand pump for the 225, but I think its the short one like you have. I have a new pump for the 231 that has a longer shaft on it so you might try that. I need the short shaft because I run an electric fan. The flowcooler made a huge difference in how hot my Jeep used to run. Good luck
     
  11. Chris Insull

    Chris Insull All roads lead me back to the beach... 2023 Sponsor 2022 Sponsor

    Yes, I broke off two of them in the block when torquing them to proper specs....
     
  12. northernwheeler

    northernwheeler New Member

    I got lucky removing the hardware. Only broke 1 of the 1/4" bolts, and i was able to screw the rest out once I had the pump off. I will just have to careful putting it back together, Hardware looks in good shape though.

    Talked to the guy at my FLAPS again, and he might have found me a pump. He's going to talk to the supplier and see if they can measure it before they send it.
     
  13. Warloch

    Warloch Did you say Flattie??? Staff Member

    The 225 and 231 pumps are the same - except - for the length. I can not remember off the top of my head, bit I believe the longer one is for the 231. You may have a 231 pump and pully set on a 225 engine.

    I can measure tonight when I get home if you need it - both sitting on engine stands in the shop.
     
  14. northernwheeler

    northernwheeler New Member

    Warloch - That would be great if you get the measuments for me.
     
  15. Mcruff

    Mcruff Earlycj5 Machinist

    Yes the 225 uses the short pump from the factory.
     
  16. Warloch

    Warloch Did you say Flattie??? Staff Member

    Northern -
    231 Water Pump is 4 1/2" Mount to Pully Surface
    225 Water Pump is 3 5/8" Mount to Pully Surface

    HTH.
     
  17. northernwheeler

    northernwheeler New Member

    231 water pump it is!

    Thanks for the help, this sure had me scratching my head. Guess sometime in the past it had been switched over. Ahh, the joys of owning an old jeep:rofl:
     
  18. Buildflycrash

    Buildflycrash More or Less in Line. 2024 Sponsor 2022 Sponsor

    Anyone have a list of the correct bolts? Is there a bolt kit?
     
  19. ojgrsoi

    ojgrsoi Retired 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Are you talking about the long bolts? IIRC it took me a while to find replacement bolts. I finally found them at Grainger.
     
  20. timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

    The factory parts book should list all the bolts, but I don't have a book that goes back that far. Pretty sure you will need to buy or make the bolts you need - never heard of such a thing as a bolt kit.

    McMaster-Carr is another good source: McMaster-Carr

    I think I would thread both ends of some rod and make a stud, rather than buy a specific long bolt.
     
    ojgrsoi likes this.