My QM15 has a compression release pull cable, but in the 25 years I have owned it, shutting the throttle all the way down shuts off the fuel and it quits. After a diesel is running, the only way to stop it is to block air, fuel, or compression, the electronics are no longer in use, thus the fuel seems to be the most logical.
Gary, QM15, 1980. From: CnC-List <cnc-list-boun...@cnc-list.com> On Behalf Of Josh Muckley via CnC-List Sent: Wednesday, May 1, 2019 10:57 AM To: C&C List <cnc-list@cnc-list.com> Cc: Josh Muckley <muckl...@gmail.com> Subject: Re: Stus-List Yanmar SB8 shut off I am very familiar with the gm/hm/ym/qm series engines... Not so much with the SB8 series. That being said, whatever actuation method is employed, it is best for the fuel to be shut off to kill the engine. If there is a fuel solenoid - fine. If there is a throttle actuator that goes below idle - fine. Ultimately you want the engine to be starved of diesel fuel. What you don't want is to regularly kill the engine by obstructing the air or eliminating the compression. These methods allow fuel to collect and linger on the cylinders after shutdown. Check your engine to see what is being activated to shut it down. If it is fuel related then you're probably fine leaving it as is. Josh Muckley S/V Sea Hawk 1989 C&C 37+ Solomons, MD On Wed, May 1, 2019, 10:43 AM Chris Graham via CnC-List <cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com> > wrote: Hi Listers! Probably a dumb question but in my research I have encountered a variety of opinions about shutting down the SB8. The previous owner had disconnected the kill switch and just used the ignition to shut the engine down. I have always used the kill switch on all my diesels and this concerned me. Any opinions out there on this subject? Should I reconnect the cable or is it fine to just use the ignition to turn the engine off? Any concerns about doing damage to the engine or electronics using this method? Thanks so much! Approaching launch date but still some projects to complete! Chris Graham 1978 C&C 26' Papillon _______________________________________________ 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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