how to seal those mercusier blue drain plugs.tried several ways no luck

[Knot a problem Rick]

:smt100 tried grease ,new pluge and o ring too tight no seal too lose
vibrates open
HELP

 

[wellswa]

:smt100 tried grease ,new pluge and o ring too tight no seal too lose
vibrates open
HELP

I manufacture and sell stainless steel replacement plugs for the plastic Mercruiser ones. Send me an email and I'll send you pics and pricing if you're interested. Warren at wellswa@yahoo.com

 

[Bandit360]

If the lower blue drain plugs are over tightened in the plastic water distribution housing, the housing will crack. You'll have to replace the housing. Don't overtighten! It is difficult to see the crack, but once it's there, you will never get a complete seal. Not inexpensive either, about $150-170. For a plastic part.

 

[Bt Doctur]

Or if your handy

because there`s nothing inside that plastic ball

 

[wyrman]

I manufacture and sell stainless steel replacement plugs for the plastic Mercruiser ones. Send me an email and I'll send you pics and pricing if you're interested. Warren at wellswa@yahoo.com

The least you could do since you're selling stuff here is sponsor the site.

 

[Strecker25]

I manufacture and sell stainless steel replacement plugs for the plastic Mercruiser ones. Send me an email and I'll send you pics and pricing if you're interested. Warren at wellswa@yahoo.com

I'm not a chemist so I honestly have no idea, but is there concern with stainless to cast iron for corrosion? I've heard people using brass but never stainless. Might be a non issue..

 

[dpmulvey]

The least you could do since you're selling stuff here is sponsor the site.

:thumbsup:

 

[480ces]

Or if your handy

because there`s nothing inside that plastic ball

Probably should point out this is all marine grade BRONZE. NOT HOME DEPOT BRASS.

Using regular brass below the waterline is a sinking hazard, especially in salt water. There are marine grade alloys of brass, but it can be hard to tell whats what.