My 3HM35F starts with minimum throttle and in the dead of winter but I still try to follow the manual. Fred, you might try priming the engine by pulling the decompression levers and turning over the starter for 10 to 20 seconds. Immediately reset the levers and attempt to start. You can even reset while still rolling the engine. If it changes the start symptoms then I would lean towards a problem with the fuel lines draining down during the idle times. Could be sticking needle valves in the injectors or sticking discharge check valves in the HP pump or weeping fuel line connections.
Josh On Thu, Dec 7, 2017, 7:01 AM John and Maryann Read via CnC-List < [email protected]> wrote: > Interesting. Our 35 year old 3GM starts immediately every time with > throttle on dead idle. About 10 years ago had starting issues and white > smoke. Replaced injectors and fuel pump – problem solved. Check the oil > level. If it is rising then fuel is getting into the oil which can cause > some spectacular results. In our case culprit was broken diaphragm in the > fuel pump which of course reduced fuel pressure and allowed leak into oil > sump. > > > > > > John and Maryann > > Legacy III > > 1982 C&C 34 > > Noank, CT > > > > *From:* CnC-List [mailto:[email protected]] *On Behalf Of *Josh > Muckley via CnC-List > *Sent:* Wednesday, December 06, 2017 11:53 PM > *To:* C&C List > *Cc:* Josh Muckley > > > *Subject:* Re: Stus-List Hard starting 3GM 30 > > > > As I recall the Yanmar manual says to start with mid-throttle. > > > > Josh > > > > On Dec 6, 2017 9:16 PM, "David Castor via CnC-List" <[email protected]> > wrote: > > FWIW, on my Westerbeke, the owner's manual recommends starting with > throttle wide open. Don't know about Yanmar. It helped a lot when I > started doing that. I guess it's good to read the manual sometimes. > > Dave Castor > > > > On Wed, Dec 6, 2017 at 11:49 AM, ALAN BERGEN via CnC-List < > [email protected]> wrote: > > Fred: > > My 3GMF (20hp) does the same thing. When I first start it I give it full > throttle, and it starts fine. After a race, it starts fine with no > advanced throttle. I just assume the fuel is flowing back in the line, and > it's taking a while to get to the engine. Some day I'll tighten all the > fuel line fittings. > > > Alan Bergen > > 35 Mk III Thirsty > > Rose City YC > > Portland, OR > > > > On Wed, Dec 6, 2017 at 10:52 AM, Fred Hazzard via CnC-List < > [email protected]> wrote: > > What causes it to start poorly? To start it we have to give it full > throttle. One more clue is that when it first fires some white smoke comes > out.. > > Fred Hazzard > S/V Fury > Portland Or > > > Sent from my iPhone > _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each > and every one is greatly appreciated. If you want to support the list - > use PayPal to send contribution -- > https://urldefense.proofpoint.com/v2/url?u=https-3A__www.paypal.me_stumurray&d=DwICAg&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=9w3G7Cf8YfQnrjmtuNxwDJYr3JMv9f1pAfgAJ9xXYQQ&m=gVh3DTSZS2-MlUPNb7VoKHqe9sPmYXbPu76ur9Se-C4&s=ThqPMjcPyL9_IFeUYVab3I9rB8sF-m8TXMvVAIeWX70&e= > > > > > _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each > and every one is greatly appreciated. If you want to support the list - > use PayPal to send contribution -- https://www.paypal.me/stumurray > > > > > _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each > and every one is greatly appreciated. If you want to support the list - > use PayPal to send contribution -- https://www.paypal.me/stumurray > > > _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each > and every one is greatly appreciated. If you want to support the list - > use PayPal to send contribution -- https://www.paypal.me/stumurray > >
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