e-manhunt said: (quoted from post at 09:18:30 10/15/08) Thanks guys. i got a rain cap on the exhaust, but half the time it sticks in the "up" position. I really can't recall how it was when I left it. However, i can very clearly picture my coffee can sitting on the ground next to the left front tire.
Suppose you left it for a long while like that and didn't realize it. Then, when you go to use the tractor you suddenly notice that the cap is up, and you start to freak out because it has been raining like all get out. Relax! What would be the worst-case-scenario?
If enough water was in one of the cylinders, it could cause hydrostatic lock. Basically water is incompressible. On the compression stroke the water in the cylinder would not compress, and if you had one of the other cylinders firing, something would have to give (and it wouldn't be the water). In that case you'll get a bent rod, busted crank, etc.... not good.
Another problem might be that water slipped past the rings and got down into your oil. Once the engine was going, the water/oil mixture would emulsify.... creating something with the consistentcy of mayonaise. The lubricating properties of the oil would be seriously compromised. Again, not good.
Here's what you do: first, change the oil. That will get rid of any water that got past the rings. Second, remove all the spark plugs and turn the engine over with the starter. If there is a significant amount of water in the cyls, it will get blown out of the sparkplug holes by the up and down action of the pistons. Just be careful that you remove any crud around the holes so that it doesn't get sucked in. After that, put the plugs back in and you should be good to go.
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