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Forum: Engines and Propulsion Systems

02-10-2018, 16:26

Replies: 12

ENGINE CRUISING SPEED 3QM YANMAR

Views: 4,432

Posted By coopec43

Re: ENGINE CRUISING SPEED 3QM YANMAR

Mike I couldn't agree more.

When I ordered my prop the specialist asked.
1. The RPM for the diesel at the "continuous"
2. The HP at the continuous revs.
3. The gearbox ratio.
4. Maximum...

Forum: Engines and Propulsion Systems

02-10-2018, 05:44

Replies: 12

ENGINE CRUISING SPEED 3QM YANMAR

Views: 4,432

Posted By coopec43

Re: ENGINE CRUISING SPEED 3QM YANMAR

OMG! Sorry, I've got my wires crossed somewhere.:nonono:

But as a rule of thumb diesels should be run at around 70% of maximum rated output RPM. If they are run without a proper load problems...

Forum: Engines and Propulsion Systems

02-10-2018, 05:21

Replies: 12

ENGINE CRUISING SPEED 3QM YANMAR

Views: 4,432

Posted By coopec43

Re: ENGINE CRUISING SPEED 3QM YANMAR

YANMAR 3YM30 MARINE ENGINE

Now for the boring bit. The Yanmar 3YM30 develops 28.6hp at 3600rpm or 26.9hp continuous at 3490rpm from its 1115cc OHV engine with gear-driven pushrods and two valves...

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