Block drain threads?

[Loadup]

Should the threads on the plugs be coated or wraped with something ? I cleaned them all up and did not want to miss something. It looked like something was on there but what ?

[tg0824SSVGG]

I never have ...

[jaywidhalm]

Mine never were either.

[docdrs]

put some antisieze on them at least that way they are easier to insert and remove......part in the spring if you leave them out over the winter

[beast 496]

One item which might help, Is to install a fitting which is a 1/4 npt male/female. This will allow you to thread in the fitting into the block and leave the brass fitting in the block all winter, just remove the brass 1/4" npt plug. Mercruiser engines have one better, they use a special fitting which threads into the block and then has a blue plastic wing plug with an oring for the drain plug. These blue plugs can be removed without tools. Much easier and quicker. I installed these in my 496 HO engine for drain fittings. Al