woodscavenger Posted September 28, 2009 Report Posted September 28, 2009 My truck was running great until yesterday. I pulled away from the intersection and the engine sounded rough and powerless with some clattering noise. I nursed it to the shop and parked. It starts relatively easy but seems to have lost about 200 RPMS at idle and is rough. At high rev it seems fine but at lower RPM U get a clatter type noise and almost a ping or a pop I can hear in the carb. Any ideas? Did I lose a valve or valve spring? This truck was running so well it makes me a bit ticked off at the ol' girl. Quote
Merle Coggins Posted September 28, 2009 Report Posted September 28, 2009 I think the first thing I would check is the timing and points setting. The noise part is a bit confussing, but timing and points dwell will definetly effect your power. If you had a bad valve RPM wouldn't make it better. You may also have a plugged idle jet so that it's not getting enough fuel at idle, but once the throttle is opened up it runs fine on the main jet. Merle Quote
grey beard Posted September 29, 2009 Report Posted September 29, 2009 Shane, Merle's got you on the right track. Next thing I'd do if it was in my shop - if you find nothing with his advice - is a compression test. That will tell you if there are any major engine or valve issues. Let us know what you find. Good Luck Quote
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