Starting my engine on a stand, issues arose |
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Starting my engine on a stand, issues arose |
malcolm2 |
Sep 29 2020, 06:16 AM
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#41
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Advanced Member Group: Members Posts: 2,747 Joined: 31-May 11 From: Nashville Member No.: 13,139 Region Association: South East States |
I have built a fresh 2.0 and borrowed a set of weber 40s to get her running, broken-in etc....
I bought a new single vacuum distributor with the flame thrower 3 module inside. Also bought the Petronix coil. I built up oil pressure, then connected the gas lines, fuel pump, and coil. Tach and timing light too. After a few tries, she started. As expected running very ruff. Back-firing thru the carbs. I loosened the distributor and tried to make some adjustments. That seemed to help the back-firing a bit, but not totally. I got the idle timing to what looks like 7 btdc, but it is tuff to work everything without a helper. I know next to nothing about these carbs, and about the same amount to tune them enough to bench run the engine, but I am looking into that. Any help would be appreciated on the carbs. I got it idling, again, very ruff. So I wanted to do the cam break in, so I rev'd it up to about 3000 and held there. Maybe a minute and the revs dropped and I had to putz with the accelerator to keep her going. Again up to 3000, same thing revs dropped. I have a note in to my distributor vendor about how this "rev limiter" on this module works. So three things here. She is still running ruff, back-firing etc...and there is the high rev cut-off. Lastly the carbs, any quick checks or adjustments there? Any thoughts or suggestions? |
malcolm2 |
Oct 11 2020, 12:06 PM
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#42
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Advanced Member Group: Members Posts: 2,747 Joined: 31-May 11 From: Nashville Member No.: 13,139 Region Association: South East States |
I love when a plan comes together..... Well almost.
Pulled and soaked and cleaned the carbs. Set the screws, removed the linkage, got new NON-metalic plug wires. BOOM. ran nice even before the carb balancing. Balanced the carbs with the linkage off... attempted to get the linkage right, but did not. Got close enough for the garage floor. Once that was done, I checked the timing. Also pretty good. Let her run for 20 minutes at about 2000 rpm. Love the throaty carb sound.... I assume I am gonna need to adjust all the nuts, etc.... on the linkage. I got the turn buckles the same length and that was a big mess. Then just got it "good enough" for break in. Man it sounds really good. |
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