2005 Bayliner 185 with 4.3 Mercruiser
After 30 minutes cruising the tach, oil pressure and temperature guages all begin to flick or flutter intermitantly. Very subtle at first but then gets worse. After one hour or more the engine will begin to hesitate, again intermitantly, still cruising at 28-30 MPH. After sitting an hour or more, guages will again be steady and engine smooth. Is the guage flicker and engine hesitation related? This has been happening for three seasons. Boat is not used often. Twice it has been to dealer mechanincs who have not been able to reproduce the symptoms. Their dynometer testing is always good. One suggested carburetor rebuild but the guage movements confuse me. Another weekend boater suggested a coil issue? Thanks for any advice.
After 30 minutes cruising the tach, oil pressure and temperature guages all begin to flick or flutter intermitantly. Very subtle at first but then gets worse. After one hour or more the engine will begin to hesitate, again intermitantly, still cruising at 28-30 MPH. After sitting an hour or more, guages will again be steady and engine smooth. Is the guage flicker and engine hesitation related? This has been happening for three seasons. Boat is not used often. Twice it has been to dealer mechanincs who have not been able to reproduce the symptoms. Their dynometer testing is always good. One suggested carburetor rebuild but the guage movements confuse me. Another weekend boater suggested a coil issue? Thanks for any advice.
