Antifreeze leak in B cylinder block

JD49B · Aug 11, 2016

Hit a snag while assembling my '49 JD B. Had a very slow drip of AF that looked like it was coming from the bottom of the block, at a small depression in the side of the casting. I poked at the spot with a screwdriver, and went right through. Not much more there than paint and rust.

I plan to enlarge the hole to solid metal, then drill and tap for a pipe plug. Any other suggestions or tips?

Thanks!

Mike M · Aug 11, 2016

Might be pretty hard to get thick enough metal to tap it for the plug ? Good idea worth a try.

teddy52food · Aug 11, 2016

Braze a patch over it.

MT RON · Aug 12, 2016

flush out system to get all antifreeze out,use a dremel tool and clean it up real good and fill it with JB WELD then put a piece of duct tape over it,let it set for a day remove tape sand down then paint it.You'll never have anymore trouble with it.Ron

rbooker · Aug 12, 2016

(quoted from post at 01:28:10 08/12/16) flush out system to get all antifreeze out,use a dremel tool and clean it up real good and fill it with JB WELD then put a piece of duct tape over it,let it set for a day remove tape sand down then paint it.You'll never have anymore trouble with it.Ron

Or I have used water-weld or fas-weld which is a semisolid 2 part stick that you knead and apply. Because it's much more solid it works easier than jb weld in this application.

Antifreeze leak in B cylinder block

JD49B

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Mike M

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teddy52food

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MT RON

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rbooker

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