Re: [Amel Yacht Owners] engine cruising RPM
It really doesn’t matter how you do it but you need to create internal engine heat to clean out the engine. This is done with a load on the engine. If in neutral, it will take longer to create a load and heat. In gear while underway will heat up the engine faster.
This is true for all diesel engines.
Where you run the RPM depends on the engine. Typically, 80% of max power will heat up the engine nicely without too much strain. This is also good for the turbocharger, if fitted with one.
How long? At least every couple of hours while underway, if not a little more frequently. We run ours up every hour for about five minutes. This works for us.
Keep in mind, this is not just the ship’s engine but also true for the genset. Running a genset without load will cause carbon buildup. Keep the genset loaded when charging batteries etc. We find it best to run a couple of AC units or do a load of laundry etc. The battery charger only puts load on the genset at the beginning of the charge cycle.
Hope this helps.
With best regards,
Sailing Vessel - Cream Puff - SM2K - #275
Currently cruising - Curacao
From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Saturday, July 7, 2018 11:35 AM
Subject: Re: [Amel Yacht Owners] engine cruising RPM
Ok. Bullshit aside.
I do have a few real questions, that I’ve had for a while.
It’s the same for all diesels. Yes?
Is “racing” out of gear best? I would think load would be required to increase fuel consumption and thus heat. Fuel burn>>heat dissipation 2/2 raw water flow.
Forget the rpm. Where is the throttle? 100% down? 80%?
And for how long?
Many thanks, as always to this great group.
Excuse the errors.
Sent from my IPhone