Went mudding and found later that there was water in the intake hose. Dumped it, cleaned it out but now when the disco is started it misfires for a few moments. Then it smooths out. Could water be in the motor and if so is there a way to get it out?

 

First of all, did you go through water high enough to get all the way up into the intake? You would have forded a creek or pond up to hood height. 2nd, have you pulled dipstick to see what the oil looks like? Does it still look normal?
Still need more details from you to understand what's going on. Include answers to this and any more info that may be valid, I.e. What kind of filter you are using, is/was it wet, did you dry it out, at what point exactly did it begin misfiring, how much later did you discover the moisture in tube???? And so on...

 

We hit some pretty good size puddles. The problem is I have a cone style filter at the end of the intake hose instead of the closed in box (oem). Didn't realize the mud and water would have gotten all over the engine bay. I checked the dipstick and oil looks normal. Sprayed the mass air flow sensor with cleaner. Started misfiring after mudding.

 

Your mass air flow may be dying from getting wet

 

Seems like everytime I turn the Rover on it goes through misfiring for a moment even if its a short time off. Trying to figure out where water would be to cause a misfire...

 

If you had water in the intake tube then most likely you probably have some sitting around your coil packs. I would take each one out (marking which went where because you might have killed one). Pull each one (not the spark plug) Just the coil pack and clean and dry and then retry.

 

Look on the plus side, you cleaned out a bunch of carbon.

 

As a former snorkeled ATV rider and current Rover repair monkey, I'm struggling to think how water could still be causing problems. But I know that when I have cleaned the upper and lower intake, or left them out in the rain, getting all of the water out required turning them over several times, then back and forth. Within the head, water could sit in the intake valves. Your MAF is surely fried.

When I accidentally drove my car into a flooded ravine (30 years ago), the mechanic took pity on me and just pulled the spark plugs, remove the intake hose, opened the throttle butterfly, and pointed four hair dryers at the engine overnight. It ran perfectly the next day and for the next several years. That car had electronic engine management.