Blowing Out the Turbos

[Passages]

Most my cruising is at hull speed.

My boat has 8-92's with a design WOT of 2300. I know the turbos need to be spooled up every so often, but nowhere is it written how often, to what RPM and for how long.

My last long trip (30 hours at 1300 rpm), I ended with a run up to 1700 RPM for 15 minutes. I really don't know if this was enough.

Suggestions?

[Boatsb]

Should be if it's done daily. It's to burn off excess fuel and oil deposits.

[Passages]

Should be if it's done daily. It's to burn off excess fuel and oil deposits.

Yes but to what RPM and for how long?

[Boatsb]

1700 should be fine. It's not like you have a rocket sled there. Just getting them up to full temp for 15 minutes should be fine.

[dottieshusband]

I read somewhere, perhaps in the DD operators manual, to avoid long low power operation and to run it up for at least 20 minutes every 4 hours of operation.

[doc g]

I would guess 1700 rpm would be just about starting to get on plane (high boost and EGT) and putting a lot of stress on the engines you'd be better running up WOT and backing it back to 2000 .....Pat