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How Rough Will it Run

B

Buddy AB

Guest
"Hi there,
Just wondering how


"Hi there,
Just wondering how rough should a 3.0l Merc run during spring commissioning? I tried starting it yesterday and it was shaking quite a bit so I shut it off. Is this normal? I assume it will get smoother once it reaches normal operating temperature? It is a 2005 model with about 50hrs on it."
 
"winter fogging will make it r

"winter fogging will make it run rough until it burs off, too much choke does the same thing"
 
"winter fogging will make it r

"winter fogging will make it run rough until it burns off, too much choke does the same thing"
 
"Fouled plugs soaked in foggon

"Fouled plugs soaked in foggong oil per BT Dr. won't fire at all. It should smooth out at 1500 RPM w/in 2 minutes and smoke a little longer. Clean the plugs, regap if not platinum plugs and reinstall."
 
"Right. As long as you have oi

"Right. As long as you have oil pressure, you should run it and figure out the issue. Suspect you have a miss on one cylinder. If you still have a miss after cleaning/replacing the plugs, we can help diagnose from there. Cheers."
 
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