Doug,
If you have an electric pump that has the oil pressure safety switch,
between the (+) on the coil and the elec. fuel pump, I would recommend
you install an bypass switch around the safety switch. I just resolved
that I had an intermittent failure mode in the safety switch that would
I’ll chime in with an oddball problem, missed by two local diesel mechanics.
Universal diesel, would rev with no load but would not rev with any sort of
load. This had been a problem for the owner (and his frightened wife) for
several years. I worked for about three weeks on this one - After
Sent from my iPhoneOn Jun 12, 2023, at 2:28 PM, David Risch via CnC-List wrote:
If you re-powered, or just have a good running engine, and did not thoroughly clean the tank and tank pick-up. Your playing Russian roulette. Especially in rough weather when all that gunk gets stirred
First problem - electrical in ignition.
Second - gas engines race when they lean out, then die. This was a great
feature in little pit bikes with centrifugal clutches - an unexpected launch
before running out of fuel.
Could be a fuel supply issue.
Sent from my iPhone
> On Jun 13, 2023,
Atomic 4 are really reliable and need very little to run ( good spark,
compression and almost any gas ).A sudden stop will typically have one of two
causes, water in fuel or ignition coil ( overheating or short-circuit ).
For water try adding 8 ounces of gas line antifreeze ( methyl hydrate
My old Catalina had an A4. We had a similar issue to the stalling issue, the problem turned out to be a small crack in the distributor rotor. As it would heat up, the rotor would deform and no longer make good contact with the points. I was happy to move to diesel when I upgraded to my C!Jim
Karl- I agree with Neil that it sounds like transmission, but I have not had
that problem so no personal experience.
As long as we are onto other engine strangeness, my M4-30 dies routinely when
shifting from neutral to reverse at minimum throttle unless I kick the rpm up a
bit. I suspect
AT4's are known to be susceptible to internal shorts in the ignition coil.
If it sits for 15 minutes or so then restarts, that may be one culprit.
--
Dennis C.
Touche' 35-1 #83
Mandeville, LA
On Tue, Jun 13, 2023 at 12:42 AM Karl Kuzis via CnC-List <
cnc-list@cnc-list.com> wrote:
> Since we are
I have had two similar issues with A4:
1. Coil overheats: shuts engine down after running heavily for hour or
so, then restarts normally after sitting for half hour. Moved the coil
off the engine, has never happened since.
2. Sudden and complete shut down while running normally: found
Karl, check your whole ignition system, points, distributor, coil, and plug
wires for any looseness damage or wear. Your problem definitely sounds
electrical.
Douglas Mountjoy
1988 C LF 39
Mexico at large
1984 Sabre 34
Port Orchard, WA
On Mon, Jun 12, 2023, 22:42 Karl Kuzis via CnC-List
wrote:
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