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Old 10-27-2013, 02:48 PM
FrankSchwab FrankSchwab is offline
MC Devotee
Join Date: Aug 2004
Boat: 1998 Maristar 200VRS
Location: Phoenix, AZ
Posts: 1,850
Originally Posted by carracer View Post
My concern is over the years the block threads will wear out and then what
Well, put Brass plugs in the holes. The likelihood of Brass wearing out the cast iron of the engine block is about nil. After 100 years of removing/replacing the brass plugs, they'll wear out and you can replace just the plugs.

I'm not a fan of these kinds of drain valves. When I pull my drain plugs, I normally have to stick a screwdriver in the hole to knock the scale loose before the engine will drain correctly. With a valve in place, you'd never be able to do that.
1998 Maristar 200VRS
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