yanmarrob
New Member
Hi. We are trouble shooting on a Yanmar 4JH2-DTE. There is no diesel on the injectors. No air lock, good filter, priming pump ok, stop solenoid ok, confirmed pump cam turning. What have i forgot to check here?
No diesel from HP pump Yanmar
- Thread starter yanmarrob
- Start date
Bilgediver
Well-Known Member
You do not mention bleeding the injector pump. Although injector pumps usually self bleed , sometimes theycdo nor and need a little help.. There us a bleed screw on the pump for this purpose.Once the fuel pump is free of air, slack of all the injector HP pipe connections to prime through to the injectors .
Might also be worth checking that the pump rack moves when the speed lever at the helmets moved .
You did not make it clear if you were slackening the injector to pipe connection to carry out bleeding, however if you miss this then your problems could be expected.
Might also be worth checking that the pump rack moves when the speed lever at the helmets moved .
You did not make it clear if you were slackening the injector to pipe connection to carry out bleeding, however if you miss this then your problems could be expected.
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