Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 21-02-2016, 13:43   #1
Registered User

Join Date: Dec 2010
Posts: 48
Yanmar 4 jhe 4 year 2009 problem

Nit sure about the model name, but its a 54 hp, 4 cyl Yanmar from 2009. My problem is, that it starts fine and then runs fir 2-3 sec, then stops. Sometimes it does this 3-4 times before it keeps running. I have tried to preheat it more, up to 20 sec, and i have tried to give it a little trohttle. Without results. My best guess is that air is coming into the fuelline, but where? And why isnt there any problems when the engine runs. The only problem is starting it.


Sent from my iPad using Cruisers Sailing Forum
__________________
jesperht is offline   Reply With Quote
Old 24-02-2016, 13:20   #2
Registered User

Join Date: Dec 2010
Posts: 48
Re: Yanmar 4 jhe 4 year 2009 problem

Solved by bleeding the fuel line!


Sent from my iPad using Cruisers Sailing Forum
__________________
jesperht is offline   Reply With Quote
Old 25-02-2016, 19:31   #3
Registered User

Join Date: Apr 2012
Location: Ashore in Jacksonville, FL
Posts: 175
Re: Yanmar 4 jhe 4 year 2009 problem

Sure sounds like air in the fuel line. Have your ever replaced or rebuilt the fuel list pump? You did not mention the engine hours, but since it is a 2009 engine, the fuel lift pump is suspect. It is simple to rebuild if you are mechanically inclined. I can email an article I wrote some time back about rebuilding the pump. Two common air leaks: around the top of your Racor filter and around the valve stem(s) of any valves in your fuel system (shut off valve, tank selector valve, etc.) A quick check on valve stems is to coat the valve stem with grease (on the outside, of course). A distant problem: do you have a strainer on the fuel tank pickup tube? It may be clogged. If you have one, get rid of it. Your primary fuel filter and secondary (the one on the side of the Yanmar engine) make this troublesome strainer unnecessary.
Harry
__________________
SailorHarry is offline   Reply With Quote
Reply

Tags
yanmar

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Yanmar 4-JHE RPM's PuttingDoctor Monohull Sailboats 19 26-12-2015 08:53
Yanmar 4-JHE Thermostat a64pilot Engines and Propulsion Systems 5 17-12-2015 10:04
Yanmar JHE oil change dearmstr Engines and Propulsion Systems 3 12-04-2015 15:32
For Sale: Tube stack for Yanmar 4 JHE dianacay Classifieds Archive 0 30-12-2014 11:00
Yanmar 4 JHE laskihand Engines and Propulsion Systems 8 05-09-2010 10:22



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 23:15.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.