T&T: How to free stuck piston rings

[Phil Keys]

Kathy K's Perkins 4-236 consumes 1 qt, of oil about every 30 
hours.  When I bought the boat the engine had 400 hours since being 
rebuilt with a long block and now has 800 hours.  This oil 
consumption seems constant.  In every other aspect the engine works 
fine, little smoke at startup, no oil sheen on exhaust discharge.

The only thing I can think of is that the engine was run too slow 
before I bought the boat and that the rings are gummed up.  Has 
anybody had any experience freeing up stuck rings with an oil additive?


Phil Keys
Kathy K  Willard 36, hull #34
Port Hadlock, WA 98339
philm@keysfamily.org