Cruisers & Sailing Forums - View Single Post - How to make your Diesel last a long time.

ssullivan · 21-09-2006, 19:17

Also, speaking to redlines, I have an ancidotal comment:

I was once told that the proper RPM for a diesel engine is also where it is in harmony. You can find these sweet spots by feeling the vibration your engine makes. No matter if you are trying for 3/4 of redline, 1/2 of redline, or 1/4 of redline, your engine will have a few very special spots where the vibration and chatter will abate completely. The engine will "hum" rather than rev and rattle. I was taught that these RPMs are also ideal for long-term motoring since you wont rattle anything loose, and the components are all in a sort of vibrating harmony, vibrating at the same frequency.

21-09-2006, 19:17	#7
ssullivan Senior Cruiser Join Date: Nov 2004 Posts: 4,530	Also, speaking to redlines, I have an ancidotal comment: I was once told that the proper RPM for a diesel engine is also where it is in harmony. You can find these sweet spots by feeling the vibration your engine makes. No matter if you are trying for 3/4 of redline, 1/2 of redline, or 1/4 of redline, your engine will have a few very special spots where the vibration and chatter will abate completely. The engine will "hum" rather than rev and rattle. I was taught that these RPMs are also ideal for long-term motoring since you wont rattle anything loose, and the components are all in a sort of vibrating harmony, vibrating at the same frequency.