Well it's been a while since I started rebuilding this motor, but I'm getting near the end. Putting the garage to good use during this cold spell. Enjoy.




I just saw on the other board, guess it's an M42 eh? You have another toy you aren't telling us about? You upgrade any of the specs or is it a stock rebuild?What car is it for, I don't see any 4-cyl BMWs on your list. Looks purdy though.
I just saw on the other board, guess it's an M42 eh? You have another toy you aren't telling us about? You upgrade any of the specs or is it a stock rebuild?
What a cute little engine! Where's the other half of it?
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What a cute little engine! Where's the other half of it?
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Well, my E30 Cylinder head finally got here. While my garage is not as nice as that by far and I plan on doing the head and freshening with the engine in the car, I'm looking forward to it. Did you replace everything on the engine? That darn plastic water pipe cracked on mine when I was driving it home form work last year. The coolant dumped out, pegged the temp, warped the headgasket and cracked the head.
I wish my build would end up looking that nice. What did you use to get the cosmoline off? Hot tank it? Any tips on the profile gasket?
I loved the way it ran and the way the car handled though.
Yea, it's a 4 banger. It's all about FUEL ECONOMY, man. Not something a Cobra driver would really know about, eh?![]()

^ ^ ^ bmw did say it was a stocker. How about this?...I live my car life by three credos:
2. Life's too short to lack torque.
3. If it's not cammed, blown or stroked, you're wasting my time.

Yea, it's a 4 banger. It's all about FUEL ECONOMY, man. Not something a Cobra driver would really know about, eh?![]()

Yea, I'm replacing a LOT of stuff, all the timing chain setup and guides, VAC rebuilt head, etc....new water pipe, too.
I cleaned the parts somewhat and then took them to a powdercoating place. They clean and prepped everything and then coated the parts. I just couldn't stand putting the parts back on in the condition they were in. Hopefully it will be a testiment to my work when it goes up for sale.
That profile gasket is not a big deal, just follow the torque specs and install instructions online. If you need links to manuals, let me know.
I'm thinking since I now have a ton of time to do this job I just might go the cheap route and either clean and paint each metal part with either high temp enamel silver or black (but it won't show oil leaks so maybe no-go) or just scrub everything real good with brass bristle wheels.
I have a few links to some manual sites but when I have questions I'll hit up some folks.
Did you have any trouble with the front crank timing gear bolt? I'll probbaly get into that soon.
NICE bimmerpwr! I recently came over to the dark side after decades of ignoring the roundel cars, and bought a 135i for my spouse to celebrate her liberation from minivan purgatory. Hoping to get some track tires and borrow it once Thunderbolt opens this summer! 135 is built and enroute to US, should take delivery march 31.