When you turn the ignition off, does it activate a solenoid that shuts the fuel 
off?

 

Bill Coleman

C&C 39 Erie, PA

 

From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Josh Muckley 
via CnC-List
Sent: Wednesday, May 01, 2019 10:57 AM
To: C&C List
Cc: Josh Muckley
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> 
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

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