[C320-list] Trouble starting Yanmar 3GM

Daniel Kolean dkolean60 at gmail.com
Mon Jul 8 10:44:41 PDT 2024


Exactly as you stated, try it and let me know.
Dan 
ENRICH Holland MI # 498
Sent from my iPhone

> On Jul 7, 2024, at 8:14 PM, Wandering Star via C320-list <c320-list at lists.catalina320.com> wrote:
> 
> Louis,
> Jack is right.  Nigel’s book is the best and my first go-to.  I also recommend Clymer’s Guide to your Yanmar model. Super helpful.  But more importantly, I started with ZERO knowledge about diesel's and if I can learn how to do all this, through the help of this blog site, so can you!!
> 
> Sara
> Wandering Star
> Seattle
> 2000/#707
> 
>> On Jul 7, 2024, at 4:48 PM, Jack Brennan via C320-list <c320-list at lists.catalina320.com> wrote:
>> 
>> Hi Louis:
>> 
>> Just don't ignore it for too long. Small problems can develop into big ones when you neglect them.
>> 
>> It sounds like you might be new to diesels. Don't get too intimidated about doing your own repairs. Everything I described can be done with a screwdriver and a wrench, with a hand drill for mounting a new Racor filter. The trickiest part is bleeding air from the line, which is not really tricky on a Yanmar.
>> 
>> A good way to prepare yourself is to buy Nigel Calder's book on diesel engines.
>> 
>> Jack Brennan
>> Sonas, 1998 Catalina 320
>> Tierra Verde, Fl.
>> ________________________________
>> From: C320-list <c320-list-bounces at lists.catalina320.com> on behalf of Louis Friedman via C320-list <c320-list at lists.catalina320.com>
>> Sent: Sunday, July 7, 2024 6:52 PM
>> To: C320-List at catalina320.com <C320-List at catalina320.com>
>> Cc: Louis Friedman <loualfr at gmail.com>
>> Subject: Re: [C320-list] Trouble starting Yanmar 3GM
>> 
>> Jack,
>> 
>> That may be more than I have time or the ability to do, might have to wait
>> for fall to have the yard take another look.  thanks.
>> Dan - just to clarify, you open the throttle before you crank the engine?
>> and crank the engine with the throttle at 3/4 to half open?
>> 
>>> On Sun, Jul 7, 2024 at 5:04 PM Daniel Kolean via C320-list <
>>> c320-list at lists.catalina320.com> wrote:
>>> 
>>> I had trouble cold starting too. Hull #498, same Yanmar. What works for me
>>> is slowly open the throttle, pull it down, then put it back up to 1/2 to
>>> 3/4 throttle, then crank and bring throttle down when it fires.
>>> 
>>> Dan Kolean
>>> ENRICH #498
>>> Sent from my iPhone
>>> 
>>>> On Jul 7, 2024, at 1:45 PM, r. scott via C320-list <
>>> c320-list at lists.catalina320.com> wrote:
>>>> 
>>>> i had the exact same problem on hull 615. had a very slow leak on line
>>> to
>>>> fuel pump. one drop a week. racor pump primes   very well if fuel pump
>>> is
>>>> on wrong position on the cam
>>>> 
>>>>> On Sun, Jul 7, 2024 at 1:17 PM Louis Friedman via C320-list <
>>>>> c320-list at lists.catalina320.com> wrote:
>>>>> 
>>>>> Hi all,
>>>>> 
>>>>> We have a 1999 320, previous owner had told me that the Yanmar when cold
>>>>> would not start unless it was primed with the manuel fuel pump. He had
>>>>> thought there might be a fuel leak.  I had our marina check it out(they
>>> are
>>>>> certified for Yanmar engines) - they could not find any leaks and
>>> thought
>>>>> it was fine. If the engine has been run within a day, it's fine. But
>>> more
>>>>> than that and it needs priming to get fuel in the line - any other
>>> thoughts
>>>>> on why this would be. Anyone have a similar issue?
>>>>> 
>>>>> Lou Friedman
>>>>> s/v Miss Adventure
>>>>> Hull #623
>>>>> 
>>> 
>> 
>> 
>> --
>> Louis Friedman, DO, FACP
>> Woodbridge Medical Associates
>> www.woodbridgemed.com<http://www.woodbridgemed.com>
>> 732-634-0036
> 


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