Transmissions Problem...

[miketaz25]

I'm sure this has been asked before but here goes....

We have a 1985 IP 31 which is new-ish to us. Yesterday when we engaged the forward drive, the whole engine started to shake violently. Reverse would not engage. When I looked at it I noticed that the shaft was spinning in the correct direction, forward and reverse. but no propulsion. Upon checking the transmission fluid I found very little, clear-ish fluid at the bottom, so I filled it with a universal transmission fluid that the PO had on board. After filling it it seemed to run better, but I'm sure we caused some sort of damage as it still shakes a little and will have it checked out, but my question is: Where could the transmission fluid have gone to? would it have burned up or dripped somewhere? I did not notice any leaks, and I didn't see any fluid in the bilge.



Thanks for any replies.