Marine engine block versus Auto engine block

[bomar76]

Re: Marine engine block versus Auto engine block

They are actually casting plugs and are there to aid in the manufacture of the block.

 

[trog100]

Re: Marine engine block versus Auto engine block

yes u cant make hollow castings without holes in them.. the core plugs just fill up the holes.. and i have seen mercedes engines with solid threaded ones that actually screw in..<br /><br />protecting against freeze damage isnt what they are there for.. but no doubt some of em popping out have saved quite a few engines over the years..<br /><br />trog

 

[Richard Petersen]

Re: Marine engine block versus Auto engine block

No thin wall auto block is really going to stop ice from expanding at the expanding temperature range. You have to remove the water or mix it enough with anti-freeze. Only 2 ways known.

 

[whywhyzed]

Re: Marine engine block versus Auto engine block

Originally posted by trog100:<br /> <br />i am pretty sure the one i could see was steel.. dont know about the rest cos the engine (except for the rear end) is all nicely covered in the original black paint..

A Magnet will tell you

 

[trog100]

Re: Marine engine block versus Auto engine block

good idea hystat.. its something i do to make sure stainless steel really is stainless steel.. he he.. never occured to me to use one on the core plugs thow..<br /><br />trog

 

[Richard Petersen]

Re: Marine engine block versus Auto engine block

Maybe. Some SS are magnetic. SS nuts and bolts we use ARE magnetic. You really have to know what you are ordering and using. No ducking that part.

 

[Benny1963]

Re: Marine engine block versus Auto engine block

most of the factory blocks come with steel freeze plugs
which doesnt like salt
even whan they install brass freeze plugs the large one is steel
not exposed internaly to water and they rely on paint on the ex to protect
the cam bearing plug on the outside
the block may hold for years or days but even if it cracks and doesnt
enter block it will still present a possible cooling prob.
benny1963

 

[bomar76]

Re: Marine engine block versus Auto engine block

Two Year Old Post!!!!!!!!!

 

[rodbolt]

Re: Marine engine block versus Auto engine block

who really cares?
just toss a junkyard motor in it an run it till it dies, kinda like the last one.