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Thread: Im stumped (coolant leak)

  1. #1
    Senior Member DYNO TECH
    Join Date
    Aug 2007
    Location
    Colebrook Connecticut
    Posts
    425

    Im stumped (coolant leak)

    while taking my car for a ride everything seemed fine.
    upon returning I got out of the car to open garage door and parked the car.
    I noticed a 1 foot puddle of coolant on the asphalt.
    looking at the motor the pump and hoses all look tight but I got a steady stream of coolant dripping from the bottom middle of the timing cover.
    timing cover face looked dry.
    I double checked tightness of pump and the weep hole and still could not find the source.
    any ideas?

  2. #2
    Senior Member DYNO OPERATOR
    Join Date
    Aug 2005
    Location
    Rifle Colorado
    Posts
    585
    What type of car? If it's a sbc with a little-m block, some of the timing cover bolts go into the water jacket. They'll leak if not sealed.
    Johnny

  3. #3
    Senior Member DYNO TECH
    Join Date
    Aug 2007
    Location
    Colebrook Connecticut
    Posts
    425
    its a 406 smallblock chevy.
    I found the problem btw.
    the water pump has a small pinhole in the casting.
    called edelbrock and they had bad castings in the past so they are replacing it.

  4. #4
    I am fairly sure that hole in that pump casing suppose to be there,it is there to leak coolent when the pump seal is wiped.
    Big Chief head beginner


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