HT4100 power steering pulley

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RWD 19xx-1984 DeVille and Fleetwood,
1985-1996 Fleetwood and Brougham Forum Discussion, HT4100 power steering pulley in Past Cadillac Vehicle Discussion; I'm trying to remove the water pump on my '83 cadillac but have struck a problem with the power steering ...
  1. #1
    cindy-sue is offline Cadillac Owners Member
    Automobile(s): 1983 Cadillac Coupe DeVille
    Join Date
    Aug 2014

    HT4100 power steering pulley

    I'm trying to remove the water pump on my '83 cadillac but have struck a problem with the power steering pulley. It has a hex pattern thread but I'm sure there's a
    snapped bolt in there from a previous repair. When I can get that out, I'll need to
    know how to get the pulley off. I've done lots of reading on this forum and
    understand the pulley puller threads into this hex pattern. Could somebody please
    tell me if this is correct and could somebody please post a picture or link to the
    pulley puller I need. Thanks

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  3. #2
    grauhst's Avatar
    grauhst is offline Cadillac Owners Fanatic
    Automobile(s): 83 FWB d'Elegance HT4100, 83 CDV HT4100, 74 Lincoln Mark IV
    Join Date
    May 2013
    Stralsund, Germany

    Re: HT4100 power steering pulley

    When I removed it:

    With this tool: (sry, it is a german link. There definately is something like that in the US too)


  4. #3
    j2rossit is offline Cadillac Owners Enthusiast
    Automobile(s): 85 FW Brougham, 68 Wildcat 'vert, 92 & 96 Roadmaster Wagons
    Join Date
    Jan 2011
    Southern Ontario

    Re: HT4100 power steering pulley

    I was able to loan the tool from my local part store. But the pull was on so tight that the flange of the pulley broke off before the pulley came off. So out came the angle grinder and I had to replace both the pulley and the pump.

  5. #4
    caddy1983 is offline Cadillac Owners Fanatic
    Automobile(s): 1983 Fleetwood brougham 2 door
    Join Date
    Oct 2009

    Re: HT4100 power steering pulley

    Hey Cindy-sue this is exactly what I need to do to my 83 2 door d'elegance. so far has it been difficult for you. what name brand of water pump are you getting? also what I have been reading is that the water pump has two ring type of seals that go in a tube like opening. This will need to be
    installed properly or else you will get a leak from this area. Can you do a write up on the water pump replacement. I will pm you so we can talk. I have all the parts that I will be replacing when I do my water pump(need the water pump). I have all hoses and belts. Need to know which
    to buy(name brand). Also I will be replacing my radiator(I have a lifetime warranty), my power steering pump(making noise and I also have a
    lifetime warranty) along with the power steering hose. What else can I replace sinse Im going to be in here. Is the timing belt a good idea to
    since you are there. My Caddy has 245,324 original miles. I will also need to flush the coolant system. what do you recommend I use to flush the
    system. Also do you recommend using the gm coolant tabs or should I use an aftermarket solution that is basically the same material? NEED HELP
    Thank You

  6. #5
    cindy-sue is offline Cadillac Owners Member
    Automobile(s): 1983 Cadillac Coupe DeVille
    Join Date
    Aug 2014
    Thread Starter

    Re: HT4100 power steering pulley

    Thanks Felix, your info will be really helpful, appreciate the photos too. Thanks again


    Hi Caddy1983, this is the first bit of bother Ive had with my cadi. Unfortunately I live in New Zealand so a lot of parts etc have to be sourced from USA. I imported the car from Florida 10 years ago and really not
    too sure how many more miles I'll get from the motor. For now, i'll try get this water pump replaced (which Im going to have to get from USA) and see how I go from there. Thanks for replying with your information too, greatly appreciated

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