Runs rough - spark plug doctors? |
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Runs rough - spark plug doctors? |
torakki |
Apr 17 2021, 07:31 PM
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#1
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Newbie Group: Members Posts: 43 Joined: 5-October 18 From: Nor Cal Member No.: 22,545 Region Association: Northern California |
On my '74 2.0, I can't get it to run right. It's gone through a restoration and put aside for 2 years. Now, back on it and it's almost done but[b] number 1 and 4 spark plugs are clean/wet and 2 and 3 are black, (after 10 seconds of running). What I've done so far: Rebuilt MPS, gapped points, static timing, set fuel pressure at around 27 lbs. Compession between 90 and 110. Plugs are sparking. All injectors spray (not sure of pattern). I believe plugs were new 2 years ago. They look new. It runs really rough, white smoke out exhaust and some mild popping. I though, maybe injector triggers but all are working from my, spray in the cup, test. Dizzy backwards? Any ideas to what's going on??
Thanks for any suggestions. |
torakki |
Apr 21 2021, 05:21 PM
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#2
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Newbie Group: Members Posts: 43 Joined: 5-October 18 From: Nor Cal Member No.: 22,545 Region Association: Northern California |
Another Update:
I put in new plugs and still runs rough but "all" plugs black with carbon now. I then, leaned out the fuel pressure regulator all the way, so the adjusting screw is almost falling out. The car runs much better but plugs still black. I set the timing at between 2500 and 3000, on the red line. I was doing it alone so, holding the timing light with crossed arms, holding the throttle open, setting the light down, move dizzy, picking up light so it's "close". I checked the cold start injector for leaking. Bone dry. Did I forget anything? I think it will run perfect if I could just get it leaned out more. Maybe, bad fuel pressure regulator? Wrong fuel pump? Anyway, that's were I'm at. Any thoughts? Thanks for reading.... |
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