Changing the water pump "Belt?

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Northstar Engines and System Technical Discussion Discussion, Changing the water pump "Belt? in Cadillac Engine Technical Discussion; What do I need to do to change the water pump "belt" on a 98 DeVille, Northstar? It looks to ...
  1. #1
    lonleyboy54 is offline Cadillac Owners Member
    Automobile(s): 98 DeVille
    Join Date
    Aug 2013

    Changing the water pump "Belt?

    What do I need to do to change the water pump "belt" on a 98 DeVille, Northstar? It looks to me like I have to take the water pump, "and the housing off? Is there an easier way, "just" to change the "belt"?? Please help!

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  3. #2
    Submariner409's Avatar
    Submariner409 is offline If it won't run, stick on fender vents
    Automobile(s): 2002.5 F55 STS/65500mi, 2004 F150 SuperCab 4x4
    Join Date
    Feb 2006
    MD Eastern Shore

    Re: Changing the water pump "Belt?

    Look in Cadillac Tech Tips and in my albums - simple job. Click my username, open the profile, left column, 2 albums, 6 pages of Northstar stuff - yours is earlier, but the water pump drive is the same.

    Remove the water pump belt drive shroud - two 10mm nuts, a 10mm bolt. Use either an adjustable wrench on the tensioner arm lug cast into the arm or a 1/4" drive socket tip in the square hole in the tensioner arm - lever the arm so as to remove tension, slip the belt off the pulley. It will be MUCH easier if you remove the tensioner assembly, too - the two long studs that held the first two nuts. If that tensioner pulley is not slippery-viscous-smooth and quiet, change it, too.

  4. #3
    ternstes is offline Cadillac Owners Fanatic
    Automobile(s): 2011 CTS V, 2007 SRX V8, 2005 CTS 3.6L, 2000 STS, 1999 STS
    Join Date
    Nov 2008
    SW Ohio

    Re: Changing the water pump "Belt?

    No, just remove the tensioner. 10mm deep socket for the bolts after removing the belt guard. Use a 13 mm wrench on the tensioner pulley bolt to rotate it up to release tension and remove/reinstall the new belt.

  5. #4
    N*Caddy's Avatar
    N*Caddy is offline Cadillac Owners Master
    Automobile(s): 1997 Cadillac STS (BOSE w/AUX In, Massage Seats, URPAS, "Z")
    Join Date
    Nov 2006
    Toronto, Canada

    Re: Changing the water pump "Belt?

    Yeha is a very simple solution, turn the belt on a side to get it out of the WP pulley, can't be more simple.
    94CaddyConcours likes this.

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