[C320-list] Battery Jump Starter

[Graeme Clark]

Its the same for Westerbeke. It's a fuel shut off not a decompressor. 
Graeme

Sent from mobile: please excuse typos etc.!


> On 29 Sep 2015, at 21:47, Jeff Hare <Catalina at thehares.com> wrote:
> 
> I believe Scott is correct for the 3GM30F anyway.  The service manual for
> this engine, says:
> 
> "5. Engine Stop Lever 
>  5-1 Construction 
> With this device, governor lever 2 is moved by the Cam Of 
> the engine stop lever shaft, regardless of the position of the 
> regulator lever, so as to adjust the fuel control rack and 
> reduce the supply of fuel. 
> 
> This device can be remote-controlled.
> "
> 
> So, at least for this engine, the shutoff is via fuel.
> 
> -Jeff
> -----Original Message-----
> From: C320-list [mailto:c320-list-bounces at lists.catalina320.com] On Behalf
> Of Scott Thompson
> Sent: Tuesday, September 29, 2015 3:21 PM
> To: C320-List at Catalina320.com
> Subject: Re: [C320-list] Battery Jump Starter
> 
> I don't think that is what the T- handle does. It simply cuts off the fuel
> supply, at least on the Yanmar engines. 
> 
> I'm no expert but I've been told to never close the decompression levers
> while cranking the engine for fear of damaging the valves. I would adopt
> that approach for starting only as a last resort.
> 
> Scott Thompson 
> Surprise 653
> 
> 
> 
>> On Sep 29, 2015, at 1:28 PM, Doug Treff <doug at treff.us> wrote:
>> 
>> 
>> 
>> Jim, 
>> 
>> Someone will correct me if I'm wrong but I believe that the engine
>> shut-off "T-handle" on the instrument panel will activate the
>> decompression mechanism on all cylinders. Therefore you should be able
>> to lift the T-handle, push the start button, get the engine spinning and
>> then push the handle back down while continuing to hold the start button
>> in. This would eliminate the need for a helper to push the start button
>> while you're manning the decompression levers on the top of the engine. 
>> 
>> I've not tried this but I could see how it might work if your battery is
>> only marginally discharged but just doesn't have the oomph to get past
>> the first compression stroke. If you've really killed the battery, it
>> may not work. This could also work if a jump pack is too weak to
>> overcome that first compression stroke. 
>> 
>> Obviously you want to be careful about cranking too long, as all the
>> warning labels mention, otherwise you could flood your engine with sea
>> water. 
>> 
>> ---
>> Doug Treff
>> Catalina 320 - 1996 - September Song - #350
>> http://savvysailor.blogspot.com/
>> doug at treff.us
>> 
>>> On 2015-09-29 08:02, jim brown wrote: 
>>> 
>>> Just a curiosity question while on the subject of dead batteries. Has
> anyone had success using the decompressing levers on the Yanmars when the
> battery is just groaning and almost dead?
>>> Jim Brown
>