Danny,
In my mind, you have already eliminated the carb as being the primary source of
the problem (you have had the same problem with both carbs). my next effort
would be to use a 5 gallon OB tank with new plumbing (don't use any of the
existing fuel lines or filters) and a clean carb. I'm thinking that the problem
is related to gunk in the tank or a problem with the pickup tube. If that
doesn't solve the issue then it has to be electrical/ignition.
James
Delaney
1976 C&C 38
Oriental, NC
----- Original Message -----
From: Danny Haughey via CnC-List
To: robertabb...@eastlink.ca ; cnc-list@cnc-list.com
Cc: cnc-list@cnc-list.com
Sent: Thursday, August 14, 2014 9:36 AM
Subject: Re: Stus-List more atomic 4 issues..
Okay,
Given all the discussion, I've decided the next step, as it is really the
only thing I did not replace, is to buy a 5 gal outboard engine gas can and run
the engine with a brand new gas can and brand new gas. My gut is leading me
back to the tank and the pickup tube.
I think this will eliminate the entire existing gas system and either show me
the light or eliminate it from the investigation. Of course, I won't be able
to test it all out until Saturday.
If the Gas can does not do the trick, I'll swap the carburetor again... I'll
go home and clean that up tonight so I have it at the ready. So, should I, if
the gas can does not prove to be the issue, continue on the 5 gal OB tank and
swap the carb or go back to the existing tank before swapping out the
carburetor?
Danny
---------- Original Message ----------
From: Robert Abbott via CnC-List <cnc-list@cnc-list.com>
To: cnc-list@cnc-list.com
Subject: Stus-List more atomic 4 issues..
Date: Thu, 14 Aug 2014 10:20:41 -0300
Danny:
While not A4 specific, these examples might help solve your engine problem.
A fellow C&C lister had a C&C 24 with an inboard Volvo Penta gas
engine......the engine simply would not start, or stay started, with anything
but Volvo Penta spark plugs. He can chime in and tell you the story.
I have an old (est. 50 years) Lawn Boy lawn mower.....for years, it started
the first pull but after it ran for a while and you shut it off, it would not
restart. Replaced the coil, problem solved.
Keep working at it, you will find the problem.
Rob Abbott
AZURA
C&C 32 - 84
Halifax, N.S.
----------------------------------------------------------------------------
From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Danny
Haughey via CnC-List
Sent: August 13, 2014 12:33 PM
To: cnc-list@cnc-list.com
Subject: Re: Stus-List Ok more atomic 4 issues...dammit!
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!
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