swellraiser
New member
"Okay, here we go...
Starboardside engine knocks. 1986 Mercruiser 260 Alpha 1
Cold starts no problem, knocking get louder as engine warms up , then goes away. Rev the engine t0 2,500 knocking got louder.
Thinking (praying) fuel/sparkplug ping. I then added Seafoam 1/3 into the carb, no change then 1/3 into crank case. Knocking got quiet, then disappeared at Idle. Rev the engine to 2,500 still no knock, idle down and knock appears and then disapears.
Engine does not over heat and maintains a good tempature. No power loss. Engine sounds great otherwise.
One thing to note - my oil readings are different from one another - different sending units? What should the pressure gauge be reading?
I was told to baby the engine, more frequent oil changes and additives etc, If I replace an old Item with new items I may create more broken parts.
okay - clues, suggestions. And no I am not sure where exactly the knocking is coming from. I just don't like knocking engines - thanks for your helps."
Starboardside engine knocks. 1986 Mercruiser 260 Alpha 1
Cold starts no problem, knocking get louder as engine warms up , then goes away. Rev the engine t0 2,500 knocking got louder.
Thinking (praying) fuel/sparkplug ping. I then added Seafoam 1/3 into the carb, no change then 1/3 into crank case. Knocking got quiet, then disappeared at Idle. Rev the engine to 2,500 still no knock, idle down and knock appears and then disapears.
Engine does not over heat and maintains a good tempature. No power loss. Engine sounds great otherwise.
One thing to note - my oil readings are different from one another - different sending units? What should the pressure gauge be reading?
I was told to baby the engine, more frequent oil changes and additives etc, If I replace an old Item with new items I may create more broken parts.
okay - clues, suggestions. And no I am not sure where exactly the knocking is coming from. I just don't like knocking engines - thanks for your helps."