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New Radiator - A few questions

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by BettyBurb, Aug 27, 2003.

  1. BettyBurb

    BettyBurb Registered Member

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    Location:
    NorthEast Colorado
    Got a new Go/Dan HeatBuster 4-Core radiator part # 436016 today. It fits with the stock brackets, transmission lines, hoses etc are a perfect fit.

    A few questions.

    1) the radiator came with a plastic plug in the petcock fitting, it looks like it could be used instead of the brass petcock from the old radiator. The brass one only threads in about a turn and then gets a lot of resistance. I think it is the right threads, but I am scared of messing up the threads in the radiator, so I havent turned it any further. So I got a new petcock from NAPA thinking maybe the threads on the old one are distorted, it only threads in about a turn also. Is this correct, should I just turn it hard ??? Or should I just use the plastic plug in it. Any body that has a GO/Dan radiator let me know what your experience has been.

    Also there is a problem with the stock shroud, it will need to be trimmed to fit flush up against the mounting brackets.

    If I just used longer bolts it would sit back about a half inch into the engine compartment. With a half inch gap along the top, and I think on the bottom. What should I do, trim it - or just see if it works with longer bolts ???

    I really need to know what to do about the petcock.
     
  2. fortcollinsram

    fortcollinsram 1/2 ton status

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    the drain cocks on those have an NPT thread so yes they should get tighter and tighter...I might go buy a NPT tap and run the tap through the rad. threads...

    Chris
     
  3. Don

    Don 1/2 ton status

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    Location:
    Spokane Washington
    Pick up a pipe tap 1/4" NPT.

    and just run in enough to clean the thread's, if You go to far with it, the draincock will never tighten up. [leak] /forums/images/graemlins/grin.gif

    Trim the shroud a little till it fit's close, if it too far away, the fan won't pull air through the radiator well.
     

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