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Showing results for tags 'misfire'.
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Engine Sputter & System Charging; Engine runs fine & no charge.
Noah posted a topic in P15-D24 Forum
Hey all, I've got an issue I can't seem to figure out. Seems pretty odd to me and I can't even make sense of why it would happen. Motor is a 218CI Flathead six out of a '49 plymouth. It's installed in a '57 Dodge D100 pickup. The engine started running a bit rough, a bit of a sputter, when accelerating. Also, it did not want to start hot, wait 15-20 minutes and starts. The ammeter was broken and the battery died so I went ahead and replaced the ammeter, battery, generator (yes, I polarized it) , voltage regulator, coil, fuel pump, added a couple ground straps, reset the breaker points. I fired it up and it ran fine for about two miles, then almost instantly it started sputtering. When it was running fine it did not show a charge so I thought maybe I received a bunk ammeter. When it started sputtering, simultaneously it also started showing a nice charge. I thought it was a coincidence. I took it back to the shop and checked all the grounds, wiring resistance and connections and routing. All looked good. I took it out again and seemed to be running fine so I drove for about 20 minutes putting it through the paces, with no issues, EXCEPT, it's not showing a charge now, showing a slight draw. Finally got on the highway and at top end picked up a slight sputter. While limping back home the sputter got a bit worse. Also, need to mention simultaneously with the sputter returning, the ammeter now shows a charge. I can't place the relationship, anyone have any thoughts? Could it be the distributor? Points? I'm fairly certain it's an electrical issue due to the simultaneous misfires/sputtering aligned with the charge showing on the ammeter. Thanks in advance for taking the time to read this and respond. Located in North San Diego if anyone nearby wants to check it out. -
Hi Everybody, I have a misfiring problem on my D22. When the engine is on higher rpms i have a misfire so the car wouldn't go faster than 45 to 50 miles. It also has not full power on full accelaration. First I thought it was the braker, so I installed a new on, including finger, distributor cap, wires and spark plugs, but it didn't solve the problem. Then I tried an electronic ignition but it won't be better. Then I thought it may be a fuel problem and rebuilt the carburator but nothing happened. By the time I installed a new carburator, new fuel pump, new rebulilt distributor, new fuel filter and checked vaccum and all that stuff. Now I run out of ideas. When I check timing it seems to be everything ok but the marks jump a little bit. Then I remenbered a post, that I didn't find anymore saying it may be a problem of a worn timing chain that could affect the timing in higher rpms. I'm not sure if this could affect the misfiring in higher rpms. Did anyone heard about that or have another idea? Thanks a lot Kai