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Forum: Engines and Propulsion Systems 24-07-2017, 03:06
Replies: 20
Views: 5,132
Posted By Kenomac
Re: Throttle lag on Hylas 54 Yanmar 4JH3-DTE

It sounds like your turbo is loaded up with carbon, we had the same issue. One more thought.... is this a new issue? We also had a problem with our prop having the incorrect blade pitch which...
Forum: Engines and Propulsion Systems 23-07-2017, 21:15
Replies: 20
Views: 5,132
Posted By Kenomac
Re: Throttle lag on Hylas 54 Yanmar 4JH3-DTE

Have you been revving the engine every hour per Yanmar owners manual?
Forum: Engines and Propulsion Systems 07-07-2017, 08:40
Replies: 20
Views: 5,132
Posted By Kenomac
Re: Throttle lag on Hylas 54 Yanmar 4JH3-DTE

Good, then my bet is on a dirty turbo. Have you been revving it once every hour per Yanmar instructions in order to blow out the carbon produced by running at lower revvs?
Forum: Engines and Propulsion Systems 07-07-2017, 07:19
Replies: 20
Views: 5,132
Posted By Kenomac
Re: Throttle lag on Hylas 54 Yanmar 4JH3-DTE

Especially at slow speed and starting out. Which is why growth is the first thing I check, growth is the second thing I check, then third I check fuel. It doesn't take much growth to make a...
Forum: Engines and Propulsion Systems 07-07-2017, 07:11
Replies: 20
Views: 5,132
Posted By Kenomac
Re: Throttle lag on Hylas 54 Yanmar 4JH3-DTE

One more thought, is your prop completely free of growth? As in totally free and scraped clean? What does the bottom look like? Is it clean?
Forum: Engines and Propulsion Systems 07-07-2017, 06:14
Replies: 20
Views: 5,132
Posted By Kenomac
Re: Throttle lag on Hylas 54 Yanmar 4JH3-DTE

This is what I was going to write.
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