Quote:
Originally Posted by strelnik
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I changed the fuel filters following the purge.
Black smoke and a tapping noise coming from the top of the engine.
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Where is the black smoke coming from? Leaky exhaust? Plugged exhaust? Did you try a stethoscope to isolate the tapping noise?
Do you have a clear return to tank line i.e. a clear cigar hose? If you have bubbles there. fix it.