If you've rebuilt the engine you must be familiar with Moyer Marine.. I'd give them a call.

Are those frost plugs???

 

yes the plug will have to be removed, you can drill a hole in the center and pop it out with a screwdriver

and then clean up the hole as best as possible and hopefully a new plug will seal without needing to resort to goop

 

My dad would dump black pepper in the coolant.. he came from the depression era though.. funny thing, it does work doesn't smell too bad either.

 

Black pepper...that's interesting...how will this help stop the leaking plugs? Will it fill in the small voids? Is there any risk of damaging the motor?

I am trying to avoid having to drill and replace the plugs if possible...just means even MORE delay in hitting the water this season.

Thanks for all the input!

Chris

 

It is a cheep part and a fast repair

The black pepper is a get home Band-Aid as that leak is only going to get bigger as the leak rusts up the hole even worse

 

Chris were the freeze plugs removed for the rebuild? If it's leaking imho it's already rusty and needs replacement seems to me most freeze plugs are put in reverse to what yours is showing.
Tommays is there an expansion type plug that he could get?

 

It is just a curved disk not like the cups with more sealing area on the sides like newer stuff

You clean things up and see how it looks and the new one could be thumped flat with a socket and plastic hammer

If there is obvious corrosion and it will not seal then it would become goop time like blue RTV

 

Moyer Marine Online Store

 

They used to make some rubber ones .marc