Years ago when I had A4 in first boat it would run for a while then die. An old time sailor told me to try to put my hand on the coil. If it was too hot to touch the coil had an internal short. This could result in a lower voltage spark, hence your fouled plugs.
I installed the Indigo electronic ignition and coil. Never had issues again. Dennis C. Touché 35-1 #83 Mandeville, LA Sent from my iPhone > On Aug 13, 2014, at 10:33 AM, Danny Haughey via CnC-List > <cnc-list@cnc-list.com> wrote: > > Alright, the saga continues. > > We went for a sea trial Sunday after the changes, i.e. Vent line cleared, > filters changed, clamps tightened. The engine ran great all the way to > Cuttyhunk. I probably ran it about 3 hours. Two of those hours I ran it a > little harder than I normally do after having read Don M's reasons for having > black sooty spark plugs. I thought my problems were solved. > > On our way home from cuttyhunk, We motored out the harbor and decided that, > because the wind was a little light, we would motor home to run the engine > some more. 50 minutes into our ride home, the same thing, only a bit slower. > the whole, slow, stall happened over maybe a minute or two. Some sputter, > then run normal, a little more sputter, then normal and then a slow stall. > > We then sailed home and into the mooring field. This is actually a benefit of > the engine troubles, I've been a bit intimidated about sailing onto the mouth > of the river due to the current and very tight channel flanked by shoals and > some pretty ominous looking rocks. I've now had to sail into the harbor twice > over this last weekend. At one point we were probably doing 4 or 4.5knts > through the water but only 1 to 1.5knts over the ground fighting that > current. On one side of the boat it a big, rocky cliff and the other shoal. > it was a little adrenalin pumping! Anyway, the approach to our mooring was > dead, head to wind, along with the current in the same direction, I lost > forward motion under sail and started the engine. She started right up and we > motored onto the mooring without incident. > > So, safely moored, I pulled the vent tube, it was clear. I then went below > and pulled a spark plug and it was all black and sooty again after maybe 4 > hours running time. > > I used the Moyer rebuild kit on the carb that is on there now. I'm not sure > but, I think I changed the main jet to the moyer recomended one at that time. > I think it came with the rebuild kit. > > My earlier idling issues seemed to have been solved by swapping out the carb > that came with the exchange engine for the one I rebuilt off the original > engine and had just sitting around as a spare. I think what I would like to > do now is, clean up the carb that came with the exchange engine. and swap > them back out. I'll then replace the plugs and run it some more. Unless you > guys think I should maybe try another path forward. > > Danny > > > > P.S. Cuttyhunk was Amazing! > > > > <mime-attachment> > _______________________________________________ > This List is provided by the C&C Photo Album > > Email address: > CnC-List@cnc-list.com > To change your list preferences, including unsubscribing -- go bottom of page > at: > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com > _______________________________________________ This List is provided by the C&C Photo Album Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
