Dave,
First of all this location looks challenging at best.  The problem with
these fittings is that there are 2 stacked in series.  The lower one holds
the pump pistons and spring in place.  It is sealed with a copper washer
and the tiniest movement in the counter clockwise direction will allow fuel
to leak out the threads.  This will usually occur unwittingly while trying
to loosen the top fitting.  It is hard to know which fitting is leaking.
The top fitting can simply be tightened but if the  bottom is loose then
the two of them turn together, often times twisting the fuel pipe.  The
best way is to hold the bottom while loosening the top.  This allows you to
then tighten the bottom fitting without twisting the fuel line.  Once tight
go ahead and retighten the top fitting. There is probably a torque spec
which I might be able to find for you.

The saving grace in your case is that it is not the inside port (#2).  That
one usually requires you to remove the first (#1) so that you can access it
properly.

I can probably find pictures and torque specs if you need them.  Just let
me know.

Josh Muckley
S/V Sea Hawk
1989 C&C 37+
1989 Yanmar 3HM35F
Solomons, MD




On Sun, Jul 28, 2019, 3:09 PM Dave S via CnC-List <cnc-list@cnc-list.com>
wrote:

>
> Used ye olde baby powder trick and can see that the leak is at the base of
> the forward high pressure outlet.
>
> Would appreciate any thoughts on cause and remedy.  Thanks!
>
> Posted a pic.
>
> Greetings all.
> This is getting harder to ignore....
> windstar’s engine is seeping in the area of the high pressure fuel pump.
> Diesel collects around the serial number shown in the photo (link below)
> and slowly migrates down the starboard side of the engine.
>
>
> https://cncwindstar.blogspot.com/2019/07/yanmar-2gm20f-fuel-seepage.html?m=1
>
> Any suggestions as to source and remedy?
>
> Many thanks!
>
> Dave Syer
> VP Westburne Canada
>
>
> Sent from my iPhone
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