Odayssea
New Member
This question pertains to the engine synchronization gauge, not to an automaitc (maste/slave) synchronizer. Most of the time - 80% or so - the syncheonizer gauge centers when both engines are running at the same RPM. There are times however when the synchronizer gauge is way off even thought the RPM's are the same, or conversely, the gauge shows perfectly centered even though the tachometers are different. The difference may be small (within <100 RPM) but sometimes it shows the engines are synchronized even there is a difference of 200 or 300 RPM (e.g. 3,300 starboard and 3,000 port). When this happens I tend to ignore the synchronizer and keep the engines at the same RPM. and note the sound also settles into the same pitch when the RPMs match, but then the gauge insists they are imbalnaced.
Is it correct to maintain the same engine RPMs even when the synchronization gauge shows they are off or should the synchronization gauge be paid more attentions or preferred over the tachometer readings? What are possible causes of the difference?
Is it correct to maintain the same engine RPMs even when the synchronization gauge shows they are off or should the synchronization gauge be paid more attentions or preferred over the tachometer readings? What are possible causes of the difference?