How to disassemble the M42B18 BMW engine - preparing the engine for my e36 touring 

Re-profiled camshaft, intake, exhaust and standalone ECU would have this running maybe over 170bhp. Add a fuel pump and headwork - since you're getting it skimmed anyway, could see upto 200bhp Edit: here in the UK we use BDS motorsport do everything for the 90's bmw

Leaving it NA is the best Suggestions 1) change the m42 timing style to m44 Will require new components and a mount for the crank position sensor. The biggest gain is to get rid of the small timing idler wheel inside the case. 2) coil on plug conversion using coils from a 6 cylinder 3) keep all the power steering connections fresh they always leak or remove power steering for a good manual rack. Enjoy! the 4 cylinder was and is an underrated gem

Cool teardown.. doing the HG and profile gasket and associated seals soon on my 91' 318is m42b18, this will be useful to reference!

Dzięki za dodanie polskich napisów. Czekam na ciąg dalszy. Pozdrawiam

Nice to see someone else playing with on of these engines! You can do quite a lot with these. There is a guy in Queensland Australia running an engine at about 300bhp naturally aspirated. I'm not going quite so far. The first bit of advice I can give you is you might come across BDS in the UK, stay away from them. The guy who runs it is an absolute lunatic and if you have any trouble with him he'll harass you to no end. Everything he does is based on old forum posts anyway (plus a little snake oil) so it's easy to do yourself if you're mechanically inclined which you obviously are. Since you're tearing it down, an M47D20 crankshaft can be fitted (with a little modification) and will stroke the engine out. If you get some new rods/pistons, you can get the compression up to 11.5:1 without interfering with the vales and deck height. Head work isn't really necessary until you've gone cams and bottom end, but while it is apart there is a guy in Sydney Australia who will do a CNC port and larger valves. You should check out the RHD intake kits as well. Anyway, feel free to reach out, I'd be happy to point you in the right direction. I'm currently stroking my motor now.

Super robota, powodzenia.

How you do that with the crankshaft screw ??? 😱😱😱

Hi when are you putting it together again. I need to see the timing settings. Thanks ☺️

Everything on these motors is stout besides the water pump profile gasket if not previously done and the lower chain socket and the guides , mine developed a slight rattle within a week, drove it for a week and a bit not much mainlylots of idling , ordered and installed a new tensioner decompressed not compressed which I’ve read could possibly be my issue. The engine made a change sounding quieter for the first Few min but it’s just becoming more consistent throughout the week and now rattling while idling even worse , bloody annoying knowing its probably too late for the guides

supercharge it with an AMR500 or even a kompressor from the mercedes 230 kompressor

How many kilometers were on it?

A może kompresor 🤔