Fogging the sled for the summer and getting it all cleaned up. I noticed the overflow was filled and i opened it and some antifreeze overflowed out. I know it was at the line all winter could it pressurize being in a heated garage or do i have another issue to look for. Sled ran great and never had a issue with it. I just fogged it don't really want to start it but might have to to see if it sucks the antifreeze back down to the cold line. Any idea's
If your worried about pressure building up just leave the rad cap loose but the overflow most likely filled as a result of the last ride but you can try checking the continuity of the base and head gaskets by removing the spark plugs and pulling the engine over to see if and coolant comes out.In the fall when you start the engine for the season take the rad cap off and watch the flow of coolant into the bottle as the engine runs.|a lot of bubbles in it would indicated a bad gasket in the engine somewhere putting pressure back into the coolant system.