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Original Message
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| I had the same thing happen... |
| By Will - 05/02/2001 11:57:03 PM; IP 24.162.190.117 |
It's really pretty simple. You're losing gas or spark. There's plenty of gas in the fuel bowls to run for more than a few seconds, so I doubt it has anything to do with the fuel pump.
If the rockers were misadjusted, you'd probably hear some clatter or popping out of the carb, so I doubt that's your problem.
Here's what happened to me.
I had 2 distributors. One was a factory dual point with a Pertronix conversion and no vacuum advance. The other was a Mallory electronic with vacuum advance. I didn't like either of them. They worked fine, but their advance curve was too fast. I had to retard the initial timing to keep it from pinging, and it would idle like crap with the timing retarded so far.
Then, I got a recurved distributor from Faron R. He put a Pertronix conversion in it too. I installed that distributor along with a Pertronix coil and it worked fine. Then I figured I ought to hook up my Mallory Hi-Fire IV and Mallory coil. I got the same symptoms you have. It would run for about 3 seconds, then it would die. I pulled the plugs and they were wet so I knew it wasn't a fuel problem. I cranked the engine with a plug pulled and I had spark, so I thought it wasn't a spark problem. I was stumped.
I figured it was the last thing I changed, so I unhooked the Hi-Fire IV and the Mallory coil, and it ran like a charm.
I don't know what the deal was. I had run the Mallory parts with the dual point + Pertronix so I don't think there's a mismatch there.
So, the first thing I'd try is to unhook the MSD altogether. Maybe it's bad. Maybe it's not hooked up right. Who knows.
BTW, I also tried gapping the plugs at .050 and it ran like crap.
Another thing: On the Pantera list, someone tried to start their Pantera after an engine change and they accidentally wired their coil with the "starter-on" wire instead of the "key-on" wire. As soon as they let go of the key, the engine would die. Funny -hunh? You could test that by running a wire from your battery (+) to your coil (+), then trying to start it. If that doesn't work, try substituting your coil for a known good coil. I'd do that w/out the MSD, though. You don't want to be monkeying around with that wiring.
Just some ideas. (it's late - sorry for the rambling) |
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