I have the exact same engine. Did you solve your leakage? Is your engine hard to start? Mine takes maybe 15 spins.
I replaced 6 coil packs with new ones. What else would cause a weak spark. I am still concerned about the 19V & 7V reading I had on the fuel pump
Sorry about that The engine is a VOLVO PENTA 5.0 GXI 2007
without identifying the engine in question, all you get is a best guess... no power and popping suggest a lean condition...check fuel pressure
https://maxrules.com/models/Merc_model_files/15-25.php The above link should help you out
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Re: Mercury Carburetors Leaking
I have the exact same engine. Did you solve your leakage?
Bob in Tennessee Today, 01:22 PMIs your engine hard to start? Mine takes maybe 15 spins.