Wise me up - M40, 42, 44

[D. Clay]

What are the differences in these motors? I've heard of a diesel longer stroke crank. I've got 200,000 miles on my M42. I pulled the pan and found NOTHING - still, it's not going to run forever. If you have to swap out motors but still want to keep the M42, what are your options for increased displacement and the cost of each? Being fairly new to BMW's, I 'm not really up on the models and what came and goes with what. Just looking down the road a bit.

[dude8383]

http://www.bmwworld.com/engines/4cyl.htm

http://www.bimmerforums.com/engine_faq/

That one took quite of searching cause I couldn't remember where it was hosted!

[doigal]

M40 is bmw's boat anchor. Its a crappy little 1.8 that runs of a belt with a rather unreliable hydrualic tappet system. They dont put out a lot of power and just arnt nearly as good as the m42. No US spec bmws ever had them as far as i know.