It's been really cold here... 0 some mornings, and I've noticed that after I get it running (86 stock motor) and let the clutch out the revs drop a lot. Also, it will actually creep forward just a bit, even though it's in neutral. Is this normal? The throwout bearing is a bit noisy but quiets after things warm up. I changed the gear oil in all the diffs/trannys after I got it, put in 80/90 dino.
It's just the oil in the tranny being thicker. Mine does that everyday. Mine will even move forward up to 5 feet or will even kill the motor. I actually have to rev the motor to like 3000 - 4000 rpm just to let the clutch out in neutral.
Yikes, 5', I hope thats a mild exagerationLOL. Mine also moves forward when started cold. It kind of freaked me out the first time but a good friend who's a mechanic set me straight.
Yes, it's normal. When you have the clutch in, the transmission is disconnected from the engine. When you let the clutch out, even with the transmission in neutral, it will move slightly, or have a load put on the engine due to the cold gear oil.
After I get mine running in the morning I put the t-case in neutral and the tranny in fifth for the amount of time it takes to warm up. This makes all the fluids but the diff fluid a little thinner and easier to drive first thing in the morning.