TCW-3 in my 96 speedster

[lamb724]

I just bought a 96 speedster last week,and started going through checking everything out and getting info on the boat. I soon came to realize the previous owner used quicksilver tcw-3 oil. The jug was still 3/4 full,But im not sure if it was used previous to that. I took a chance and charged the bats,Fired both engines. They purred like kittens but smoked like hell. Well i drained the oil tank,and going to find some api-tc but i need to know if i need to drain the case,and is there an easier way then pulling the motors? Also is it possible the profuse smoking is the crank seals gone bad from wrong oil?
It was sitting for a good while filled with oil before i bought it tho..
THNX 4 UR HELP

 

[roneagan@cfl.rr.com]

Now that you have it running just change to the correct oil in the tank, drain the lines and change the filters (don't forget to bleed the lines afterward). As for the seals there is not a lot you can do without rebuilding the engine. One of the motors on my boat smokes at startup, but once I run for a couple of minutes it clears up. I bought an older ski last year that the the same problem, it has ran great since I cleand it up and got all the crap out of the engine. Good luck with the new boat.