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Old 11-18-2014, 06:59 PM   #1
d.
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Default freeze plugs ?

Why did Henry not have freeze plugs in the Model A block? He had them in the Model T, but then chose not to include them in the Model A.
How come?
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Old 11-18-2014, 07:45 PM   #2
SeaSlugs
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Default Re: freeze plugs ?

USUALLY freeze plugs in an engine especially modern engines is its a hole used during the casting process and then yes doubles as a freeze plug hole so your block doesnt (supposedly) crack.

Maybe he had a different casting method for A engines?
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Old 11-18-2014, 08:02 PM   #3
Joe K
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Default Re: freeze plugs ?

Henry was quite proud of his "cast en-block" one piece engine blocks. Perhaps he viewed a requirement for additional holes as some sort of compromise to his ability to cast a block?

My experience with frozen Model As is the damage is usually done to the head by pushing up a section adjacent to the distributor. Not to say that it can't or won't cause damage elsewhere.

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Old 11-18-2014, 08:03 PM   #4
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Default Re: freeze plugs ?

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That is correct they are core holes that get a welch plug to seal in the Model T and many other motors. Even with them the T likes to crack on the drivers side anyway!
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