The Ford Barn

d. · 11-18-2014, 06:59 PM

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?

SeaSlugs · 11-18-2014, 07:45 PM

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?

Joe K · 11-18-2014, 08:02 PM

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.

Joe K

redmodelt · 11-18-2014, 08:03 PM

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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!

11-18-2014, 06:59 PM	#1
d. Senior Member Join Date: May 2010 Location: Raleigh, NC Posts: 510	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?

11-18-2014, 07:45 PM	#2
SeaSlugs Senior Member Join Date: May 2010 Location: Central, IL Posts: 3,968	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? __________________ 1929 Model AA - Need long splash aprons!

11-18-2014, 08:02 PM	#3
Joe K Senior Member Join Date: Jul 2010 Location: Cow Hampshire Posts: 4,610	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. Joe K __________________ Shudda kept the horse.

11-18-2014, 08:03 PM	#4
redmodelt Senior Member Join Date: May 2010 Location: Portland OR Posts: 6,408	Re: freeze plugs ? Sponsored Links (Register now to hide all advertisements) 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!