[C320-list] Fuel hose feed to injectors

[Graeme Clark]

Dennis

The 3GM service manual is available free online here https://www.jeanneau-owners.com/Manuals/3GM%20Engine%20Service%20Manual.pdf <https://www.jeanneau-owners.com/Manuals/3GM%20Engine%20Service%20Manual.pdf>

On page 1-28 you will see a  schematic of the pipe runs and the pipe between the filter and injector pump us shown as 6mm dia steel pipe.

Can you tale a wider angle shot of your pipe so we can see exactly where it sits in the engine - might help?

Graeme




> On 12 Aug 2020, at 08:48, Dennis Cookson <dennis at cooksons.net> wrote:
> 
> Thanks Tim, that’s interesting. I don’t want to pull the old hose off until I’m sure I have a new one ready to fit, as I expect it will crack and be unusable.  No other advice on this one as yet!
> 
> Regards,
> Dennis Cookson
> #577
> 
>> On 11 Aug 2020, at 19:23, Timothy Woods <woodstimothya at gmail.com> wrote:
>> 
>> Sorry if I'm late, been out sailing.
>> 
>> That's the first time I've seen a hose there. Mine is metal pipe.
>> 
>> Tim #375
>> 
>> On Sat, Aug 8, 2020, 10:00 AM Dennis Cookson <dennis at cooksons.net> wrote:
>> 
>>> I need to replace some of the rubber fuel hoses on our Yanmar 3GM30F which
>>> are showing signs of wear and are likely original.  One of these is the
>>> line from the secondary filter to the injectors. This hose, seen in this
>>> photo <
>>> https://c320.org/mediagallery/media.php?f=0&sort=0&s=2020080813461490>
>>> has quite a narrow diameter but the new hose I’ve bought is much fatter due
>>> to better reinforcement, with an approx 17mm diameter. It looks like the
>>> replacement would foul on the injector fixings. I’m wondering if anyone
>>> here happens to know the max. diameter I could fit.
>>> 
>>> My understanding is that the hose inside diameter needs to be 5/16” or 8mm.
>>> 
>>> Dennis Cookson
>>> #577.  1999
>>> 
>>> 
>>> 
>