Update - a straightforward (though awkward) replacement of two rubber o-rings eliminated the seepage. Will post pics to blog shortly. Thanks! Dave
Sent from my iPhone > On Jul 29, 2019, at 1:28 PM, Dave S <[email protected]> wrote: > > Thanks Josh - I did try tightening and no joy. Did a little more research > and have ordered the o ring (likely a crush washer) that seals the seat, will > then dis and reassemble. > > And yes, very tight area in which to work... > Dave > > Sent from my iPhone > >> On Jul 28, 2019, at 5:17 PM, Josh Muckley <[email protected]> wrote: >> >> 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 <[email protected]> >>> 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 >>> _______________________________________________ >>> >>> Thanks everyone for supporting this list with your contributions. Each and >>> every one is greatly appreciated. If you want to support the list - use >>> PayPal to send contribution -- https://www.paypal.me/stumurray >>>
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