New here. E21.

[mk3f.t.w.]

picked up some goodies today

[mk3f.t.w.]

We did work today. Pretty much did tear down, cleaning, degreasing, paint, and rebuilt the e30 m10 with all the seals and timing components today

[MPLFoster]

i like this.

solid work, man. keep it up.

[mk3f.t.w.]

i like this.

solid work, man. keep it up.

thanks. I appreciate it. Your epsilons really make your car.

[mk3f.t.w.]

Refreshed e30 m10 going in


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[mr2peak]

Nice. You gonna be rolling by next weekend?

[mk3f.t.w.]

I sure hope it at least turns over this weekend. I need to make an air box mount, wire the engine up, drill a larger hole in the firewall for the harness, make a ecu mount etc. It might be a little bit more maintenance the following weekend as well. Need to do a brake drum wheel cylinder in the rear, drive shaft support bearing, valve adjust, timing adjust etc


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[mk3f.t.w.]

https://vimeo.com/120434043

Finally got to drive the car after the swap. It's not fast but it feels much more solid than my worn out old motor with 330xxx miles. And I have efi now!


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[IzzY_325is]

This thing is looking great. I love e21's.

[blue plates]

Loving this build, I put my e21 up for sale last week :(

[E30NJ]

Haven't seen this thread in a while. Looks fantastic!

[mk3f.t.w.]

Thanks guys. I will post engine bay shots later. It pretty much looks like a stock e21 bay, except with e30 m10b18 bits, but I'm happy it runs much better and is refreshed.


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[mk3f.t.w.]

The stupid e21 is quite challenging hhaha. The car cuts power off idle sporadically and it is annoying. I opened up the AFM and cleaned the resistor contacts. I now have the specs to measure out the resistors so I might go back in since the car still has drivability issues.



And I had spare parts from the e30, so I swapped the coil, cap, wires, ignition control module, and gapped the plugs

I had previously extended the wires to the ignition control module, but they were bothering me, so I cut out the extension and soldered the wires short again and shrink wrapped it.
Still drives the same oh and i checked the fuel pressure regulator.

[mk3f.t.w.]

and i finally figured out the issues with the e21 so i can drive it hooray!

[mk3f.t.w.]

So the issue was that the distributor shaft had to much play on my e30 distributor. The rpm signal for my car comes from the distributor. A metal wheel passes by the sensor. Because the shaft had too much play when i would rev the motor the metal ring would move around and put out a poor signal. My car not only based spark off this, but also injector pulse. This is why my car would completely cut power. No fuel or spark randomly and judder and then catch.

I sold my old motor to a guy in Reno, and he was nice enough to ship back my old distributor for free. Put that in and car is fixed

https://vimeo.com/125119141