I have had similar starting problems. The biggest difference from what others are describing is the operation of the key.
On mine during a normal start sequence, I turn the key to on, low oil pressure alarm sounds, I press the start push button, engine starts, alarm stops. When the start sequence is going to fail, after turning the key to start no alarm sounds. I go down and jiggle the wiring harness until the alarm sounds. Then I go up and push the start push button and the engine starts. I believe this loose connection causes the equivalent of turning the key off. It can happen anytime regardless of the engine running or not. The problem being that turning the key off can blow the regulator or diodes in the alternator. Just 2 days ago I was investigating a low output voltage on the alternator and discovered a fuse in a wire bundle between the starter and the air filter housing. The fuse holder was green plastic and a clam shell design. Convieniently it holds a spare fuse. Inconveniently it was buried away in the engine. It was made to be held together with zip-ties but was only being held by electrical tape. Fuel and oil had weakend the adhesive on the tape and the clam shell had opened slightly. When I jiggled the wiring harness it would wiggle the fuse contacts inside the clam shell. Two zip-ties later and I doubt I will have any more problems. Josh Muckley S/V Sea Hawk 1989 C&C 37+ Yanmar 3HM35F Solomons, MD On Aug 15, 2014 12:55 AM, "Brad Crawford via CnC-List" < [email protected]> wrote: > I had a similar issue this last weekend. We motored from Elliott Bay to > Port Ludlow, set the hook, shut the engine off, about a half hour later I > decided to relocate the anchor. I depressed the starter switch and nothing > happened, tried a couple of times, no start. So we stayed put figuring I'd > tackle the problem in the morning. The next morning she started right up. > On the way back a few days later, we motored from Kingston back to Elliott > Bay Marina, we stopped at the fuel dock to empty the waste tank, when > finish I again depressed the start button to move on to our slip. Same > thing, no start, I checked around looking for something obvious that may > have caused the problem, found nothing, so we waited about 45 - 60 > minutes. After a cool down time I tried again depressing the start switch > and she started right up. I think my issue may be heat related but not > sure? Could it be the switch, fuse or fuse holder, solenoid, or starter? > Any ideas? Has anyone else experienced this? > > > > Thanks, > > > > Brad > > 81 C&C 36 > > Elliott Bay > > > > *From:* CnC-List [mailto:[email protected]] *On Behalf Of *Martin > DeYoung via CnC-List > *Sent:* Thursday, August 14, 2014 10:35 AM > *To:* Raymond Macklin; [email protected] > *Subject:* Re: Stus-List 2GM20F Engine will not start - Possible Fuse > Issue. > > > > I had a similar issue with a 1980 C&C 36's 3 cyl. Yanmar after a night > passage. The electrical load from the running lights and other nav > equipment caused a fuse located at the back of the engine to blow. The > fuse was in an in-line holder as part of the wire harness. This was > approx. 20 years ago so I don't recall which circuit it was part of but it > may have been the 12V supply for both the lights and the electric fuel lift > pump. > > > > Martin > > Calypso > > 1971 C&C 43 > > Seattle > > > [image: Description: Description: cid:D1BF9853-22F7-47FB-86F2-4115CE0BAF2F] > > > > *From:* CnC-List [mailto:[email protected]] *On Behalf Of *Raymond > Macklin via CnC-List > *Sent:* Thursday, August 14, 2014 5:08 AM > *To:* [email protected] > *Subject:* Stus-List 2GM20F Engine will not start - Possible Fuse Issue. > > > > Hello: > > I have a 1985 C&C 33-2 with a Yanmar, Diesel 2GM20F engine. I was sailing > last night and started the motor like normal to get out of harbor. > However, when I went to come back in to the harbor. I proceed to follow > my normal process. I put the transmission in Neutral and reached down to > turn the key and heard the whistle sound and press the start button. > NOTHING HAPPENED. Kept trying on different batteries and still nothing. I > also looked at the gauges with the motor would not start and my gas gauge > read empty and i know i have a full tank. > > We got back into the harbor and someone showed my how to jump the motor. > I started right up. He indicated it might be a fuse. > > Is anyone familiar with the location of the fuse between the key and the > motor and the type of fuse i may be needing to repair this. > > Thanks, > > Ray > > LakeHouse > > Libertyville, IL > > > > Diesel - Yanmar 2GM20F, fresh water cooled > > _______________________________________________ > This List is provided by the C&C Photo Album > > Email address: > [email protected] > To change your list preferences, including unsubscribing -- go bottom of > page at: > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com > > >
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