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  • Yanmar compression release question

    From makenway@gmail.com@21:1/5 to Donald H. Palmer on Tue Nov 7 11:23:06 2017
    On Saturday, January 4, 1997 at 3:00:00 AM UTC-5, Donald H. Palmer wrote:
    Rob Peterson wrote:

    MY dad's new yanmar 3 cylinder, 24HP diesel he's installing in his
    boat has individual compression release levers. It has no means to
    hand crank the engine for manual start and the engine manual says use
    the fuel cut off to shut down the engine. So, what the heck are the compression releases for?
    Any clues appreciated.

    They would be used to help start the engine by hand. You would engage
    the
    compression levers on all cylinders, then you can get the engine
    spinning
    by hand, and then quickly dis-engage the compression release levers.

    Donald Palmer
    M/V 'The Energizer'
    Albin 25' w/ 36hp Volvo
    Cape Coral, Fl.

    I find myself troubleshooting a pair of "hard starting" 3JH3E's...can anyone tell me where I would find the decom-valves?? I have looked over the service manual and ops manual and can't seem to find any references. Could just be me but there you have
    it.
    Thanks,

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  • From Marc Auslander@21:1/5 to All on Tue Nov 7 15:37:07 2017
    To bleed the feeds to the injectors I release the compression, crank
    the engine while I loosen the nuts at the injectors until fuels drips
    and then close them.

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