I’ll chime in with an oddball problem, missed by two local diesel mechanics. Universal diesel, would rev with no load but would not rev with any sort of load. This had been a problem for the owner (and his frightened wife) for several years. I worked for about three weeks on this one - After pulling apart and verifying everything from the filler cap to the injectors, only the governor remained . It turns out the spring was tired. This spring tries to force the high pressure pump slider open to add more and more fuel. The limit is set first by the throttle lever, and at wide open throttle by a centrifugal device (thr governor) which counters the force of the spring. With no load, the anemic spring applied just enough pressure to allow the engine to rev but with a load, the pump slider was not pulled far enough to provide adequate fuel. I clipped two coils off the spring, bent what was left to for a hook and voila! The owner was stunned, and I could only laugh having spent weeks ‘fixing’ everything else.
Dave Sent from my iPhone > On Jun 13, 2023, at 6:35 PM, Fred Hazzard via CnC-List > <cnc-list@cnc-list.com> wrote: > > > > > Sent from my iPhone > >>> On Jun 12, 2023, at 2:28 PM, David Risch via CnC-List >>> <cnc-list@cnc-list.com> wrote: >>> >> >> If you re-powered, or just have a good running engine, and did not >> thoroughly clean the tank and tank pick-up. Your playing Russian roulette. >> Especially in rough weather when all that gunk gets stirred up. >> >> From: Korbey Hunt via CnC-List <cnc-list@cnc-list.com> >> Sent: Sunday, June 11, 2023 9:42 AM >> To: Stus-List <cnc-list@cnc-list.com> >> Cc: Martin DeYoung <martin.deyo...@outlook.com>; Korbey Hunt >> <kampf2...@hotmail.com> >> Subject: Stus-List Re: Engine strangeness >> >> I have a 1980 34 C&C located in Ketchikan, AK. I only use it in the summer. >> It has a new Yanmar 30 hp engine with 300 hrs. Last year when returning >> from a long cruise at good speed and running well for many hours the engine >> suddenly slowed and died. We were in a channel and began drifting towards >> the beach. After a few minutes I restarted the motor and it ran fine. I >> suspect a fuel problem but never found the cause. I changed the engine >> filter but it did not look dirty. >> >> Get Outlook for Android >> From: Martin DeYoung via CnC-List <cnc-list@cnc-list.com> >> Sent: Saturday, June 10, 2023 10:24:48 PM >> To: Stus-List <cnc-list@cnc-list.com> >> Cc: Martin DeYoung <martin.deyo...@outlook.com> >> Subject: Stus-List Re: Engine strangeness >> >> Transitory engine issues can create drama quickly. Back in 1992 we had just >> taken possession of a 1981 C&C 36 and departed Seattle's Lake Union heading >> out to our saltwater moorage at Shilshole Bay Marina. This trip takes us >> west through the Lake Washington Ship Canal, under the Fremont and Ballard >> Bridges (needed to open them), and through the Ballard locks. The Ship Canal >> is narrow enough that it is rare to sail through it. It was also calm that >> day. The engine ran just fine through the transit to and into the locks >> (approx. first hour of ownership). It is common to shut down the engine >> while locking through as it can take enough time to expose a few people to >> the exhaust fumes. >> >> So, the lock gates open, the C&C 36's Yanmar 3-cylinder diesel fires up and >> aided by the outgoing current we departed the lock. Now it worth noting >> there is an opening single leafed Bascule train bridge with a clearance of >> +-48' at that moment's tide height a short distance west of the lock. Our >> 36's air draft was a little over 50'. >> Given how the gods watching over errant sailors enjoy a good laugh from time >> to time the engine chooses that moment to shut down. It shut down in that >> way that indicates a restart is unlikely. The train bridge is also down. The >> current coming out of the locks is relentlessly pushing us towards the >> closed bridge. I am suddenly very concerned for the top few feet of the mast. >> >> I immediately sounded the signal asking for an opening. I asked the boat's >> new co-owner to make ready to anchor. I hit the starter to see if the >> engine would restart. It sputtered and died again. I sounded for an opening >> again. Nothing promising was happening up on the bow in way of an anchor >> being deployed. I attempted another restart this time with the reduction >> gear in reverse to make use of any rotation of the prop. I get maybe 15 to >> 20 seconds of run time which slowed our progress slightly. The bridge >> operator made the horn signal indicating he was able to open the bridge, no >> trains were in route. I headed for the side of the bridge that opens first >> and hit the starter again hoping for another few seconds of reverse. >> >> Fortunately, the bridge opened just enough and our path close to the opening >> end of the bridge equaled just enough clearance the mast remained intact, >> and we avoided an embarrassing episode where we would have needed to "strike >> the burgee", obscure the boat's name, and wear bags over our heads to avoid >> being identified. >> >> The cause of all this entertainment was debris in the fuel tank blocking the >> fuel pick-up. We hired a fuel tank cleaner/polisher who cut a inspection >> port removed the debris, cleaned the tank, polished the fuel and voila, no >> more fuel pick up issues. >> >> Fast forward to 1999 and I am motoring our recently acquired C&C 43 along >> the same route. When the truck from Chicago arrived, we had her unloaded at >> a Lake Union boat yard. After 3 months of repair and upgrade work the boat >> was ready to leave but the mast was still in the paint shed so we motored >> off without a mast. Didn't need to open any bridges and was relaxed about >> restarting in the locks and heading west. (The anchoring gear was ready to >> go this time.) When we got to our Shilshole Bay Marina slip I contacted the >> fuel cleaning guy and had the tank thoroughly cleaned and the fuel polished >> to be ready for my next trip with the mast up and its 70' air draft. >> >> Martin DeYoung >> Calypso >> 1971 C&C 43 >> Port Ludlow/Seattle >> >> Greta >> 1956 Matthews 42 >> Port Ludlow >> From: David Knecht via CnC-List <cnc-list@cnc-list.com> >> Sent: Saturday, June 10, 2023 12:47 PM >> To: Stus-List <cnc-list@cnc-list.com> >> Cc: davidakne...@gmail.com <davidakne...@gmail.com> >> Subject: Stus-List Re: Engine strangeness >> >> So the problem has not recurred in several hours of motoring over a few days >> so i am going to write it off as launch day blues. No water in separator. >> Fuel pressure gauge normal. I cant see that i can do anything about it >> unless it keeps happening. Thanks for the ideas. Dave >> >> Sent from my iPhone >> >> >> On Jun 9, 2023, at 11:41 AM, Dreuge via CnC-List <cnc-list@cnc-list.com> >> wrote: >> >> I once had a similar engine issue. It would run fine one day (or half) and >> constant stall upon or shortly after restarts. It turned out that my Racor >> was not full tightened. Easy fix once found. >> >> - >> Paul E. >> 1981 C&C Landfall 38 >> S/V Johanna Rose >> Fort Walton Beach, FL >> >> http://svjohannarose.blogspot.com/ >> >> >> On Jun 9, 2023, at 11:27 AM, ALAN BERGEN via CnC-List >> <cnc-list@cnc-list.com> wrote: >> >> >> On Fri, Jun 9, 2023 at 7:22 AM David Knecht via CnC-List >> <cnc-list@cnc-list.com> wrote: >> I am out for the first time this season. Engine started right up. Motored >> out of harbor for two hours. Turned engine off for a while waiting for wind. >> Started back up. Ran for 15-30 sec and died. Started up and ran for a bit >> longer then died. Pulled bed to get access and fuel pressure and level in >> racor look fine. Started up and ran fine for 40 min. WTF? Dave >> >> Please show your appreciation for this list and the Photo Album site and >> help me pay the associated bills. Make a contribution at: >> https://www.paypal.me/stumurray >> Thanks for your help. >> Stu >> Please show your appreciation for this list and the Photo Album site and >> help me pay the associated bills. Make a contribution at: >> https://www.paypal.me/stumurray >> Thanks for your help. >> Stu > Please show your appreciation for this list and the Photo Album site and help > me pay the associated bills. Make a contribution at: > https://www.paypal.me/stumurray > Thanks for your help. > Stu
Please show your appreciation for this list and the Photo Album site and help me pay the associated bills. Make a contribution at: https://www.paypal.me/stumurray Thanks for your help. Stu
