does the 4M40 2800 engine and gearbox just fit into the previous models? i would like to put it in my 93 XP which has the 4D56...
pros and cons please......

asad

I've heard the 4M40 is not so reliable as 4D56 is.

In regards to your stuck sunroof question, the answer is probably that the stamped metal that holds the glass in place is likely rusted. My sunroof was also stuck and once I pushed it back while holding the button it broke free and opened. I found that it was as I mentioned above. I checked it out on Mitsubishiparts.com and a whole assembly from the the states was almost one thousand dollars. This included everything though, including the motor. I chose to take my sunroof apart and as ugly as it was, a little cleaning and some tlc went a long way. First I pulled out the glass. There are 4 plastic covers with phillips head screws that come off. Then 4 10mm nuts get undone which hold the glass in place. The glass just lifts out but be careful not to scratch the paint with the sunroof studs. Then I found that the stamped metal had rusted and exfoliated so bad that it was pushing the weather stripping out to far. I scraped it and brushed it with a wire brush and scraped some more and then used a rust converter. After sitting for 30 minutes I painted it black. Then the weather stripping gets pushed back into place so that the sunroof will close properly. I also found on the air dam that some weather stripping had come of. I re-attached it with some weather stripping adhesive and re-installed the glass. It's not the prettiest thing to look at from inside but now that it is black and not rust and rust flakes aren't falling in on passengers, it isn't even noticable. Don't forget to clean out the tracks and the drains as they will be plugged with grease and rust. Once done, my works like new and I have saved a thousand bucks. I also know now that to replace the glass only is about 300 bucks and easy to do if I ever feel the need. Good luck <img src="/forums/images/graemlins/cheers.gif" alt="" />