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Thread: Do our engines have block (freeze) plugs?

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    Default Do our engines have block (freeze) plugs?

    In order to switch to the Evans cooling system, I have to drain as much of the coolant as possible.

    Are there plugs on the bottom of the block that can be removed and replaced easily? If not, I'll have to remove the lower radiator hose and jack up the back of the car as high as possible.

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    No Drain plugs. The 4.6 has freeze plugs in it but I don't recommend you remove them to drain the motor. Come to think of it, you'd have a hell of a time removing a freeze plug. They sit under the exhaust manifolds... and they're too high to completely drain the motor anyways.

    You could also look into removing the oil filter mount, since it has a coolant passage going through it.

    But honestly, just remove the lower radiator hose, and jack up the rear of the car.

    Don't forget to remove the heater core hoses and drain the heater core as well. I recommend a compressed air hose running no more than 10-12PSI to flush the old coolant out of the heater core. I've done this with most all of my vehicles that I'm running Evans in. Evans recommends no more than 2% of the old water based coolant remain in the engine for their waterless coolant to work well. (I can't remember if it says that on the jugs or not).
    Last edited by That One Guy; 07-31-2008 at 06:15 AM.

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    Either remove the thermostat housing, when you split it.. the engine will drain.
    I wouldn't mess with the oil filter adapter gasket unless I was going to replace it afterwards.

    Wayne, give this a shot..

    Drain all you can from the petcock on the radiator, then refill with water.
    That will dilute the coolant by a large margin.

    Then split the thermostat housing which will drain 90% of the "diluted mixture" from the block..

    By then.. you should have the vast majority of the coolant out of the motor.
    95 Lincoln Mark VIII
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    SCT Tuned by ME, STOLEN by some dirtbag 4-13-08 w/400,480 miles
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    XLR, the whole trick is to get the WATER out of the motor. Evans doesn't play well with water.

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    I thought he was trying to get the "COOLANT" like his question said.
    *shruggs*
    95 Lincoln Mark VIII
    14.18 @ 98.33
    SCT Tuned by ME, STOLEN by some dirtbag 4-13-08 w/400,480 miles
    http://crazy8sracing.net/

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    Quote Originally Posted by XLRVIII View Post
    I thought he was trying to get the "COOLANT" like his question said.
    *shruggs*
    Um, water IS coolant.... Your mixing up "anti-freeze" with "coolant". Anti-freeze is not a coolant.

    1996 Opal Opalescent with
    2004 Aviator Power Plant

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    *shrugs*
    95 Lincoln Mark VIII
    14.18 @ 98.33
    SCT Tuned by ME, STOLEN by some dirtbag 4-13-08 w/400,480 miles
    http://crazy8sracing.net/

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    Better check that jug with "ANTI-FREEZE/COOLENT" in it....it is BOTH!!!
    Bud Pytko
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    1997 Lincoln Mark VIII - SOLD - But not forgotten


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    Quote Originally Posted by unity View Post
    Um, water IS coolant.... Your mixing up "anti-freeze" with "coolant". Anti-freeze is not a coolant.
    When you mix Anti-freeze with water it is coolant

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    Quote Originally Posted by steve View Post
    When you mix Anti-freeze with water it is coolant
    Not really. A coolant is any gas or liquid used to remove heat from something. Whatever you put in the cooling system to do that job is the coolant. The anti-freeze is designed to prevent water from freezing. They also add some things to prevent corrosion.

    1996 Opal Opalescent with
    2004 Aviator Power Plant

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