1927 Hudson (Early F-Head Engine) Water Jacket

Unknown

Hi All,



After removing the head, we are in the process of cleaning the intake

valves and head. We had planned on removing and examining the exhaust

valves next.



In looking down at the top end where the pistons are held, I saw two

round holes about 1" in diameter spaced approximately one foot from

each other.



When we first took the head off, one hole was almost full of rusted

debris. The second hole was completely closed off and upon scrapping

the hole, the debris came out.



Quesiton:



1. Are these two 1" holes suppose to be freeze plugs or? (Or are

they just closed off water jacket holes that help cool the head.)



Thank you,



Rick.