You should have an oil pressure safety switch installed into the block (or is
it oil pan .... can’t recall) just behind the fuel pump (assuming yours is not
bulkhead mounted). Wired between the coil and the fuel pump (with an inline
fuse – 5 amp I believe). The safety switch won’t send power to the fuel pump
until the oil pressure rises to about 6 psi when the engine is cranked over.
This ensures if your engine dies while running or you leave the ignition in on
that you don’t continuously pump gas into the carb. Of course these switches
fail (mine came to me bypassed, apparently by a ‘professional’ mechanic as the
previous owner didn’t do any maintenance on the boat himself) so you should
have some means handy to bypass the switch in case it dies at an inopportune
time .... a wire with a couple alligator clips would work.
I don’t have a key ... I have an ignition (pull-out knob) and a start button.
My Ignition is my ‘stop’.
I’ve also added low oil pressure, high temperature and zero coolant flow
alarms, with a buzzer and warning light on the instrument panel.
My gear shift is fairly easy to move. I have to hold the pedestal-mounted gear
shift up to keep it in reverse. Neutral is very vague and forward has a
definite ‘clunk’ to it. Getting the Atomic 4 tranny adjusted so that you
actually get a ‘neutral’, without any slippage in forward was an issue with
mine when the engine was rebuilt. I think it needs some more adjustment now.
Using an oil that is rated for wet clutches (i.e. some motorcycle oil) is also
recommended by many.
Moyer is a fantastic resource and parts source. I picked up their split shaft
coupling, oil dipstick extension, some water pump parts and the alternator
tensioner recently.
Peter Fell
Sidney, BC
Cygnet
C&C 27 MkIII
From: Danny Haughey via CnC-List
Sent: Monday, July 07, 2014 7:55 AM
To: bstrat...@falconnect.com ; cnc-list@cnc-list.com
Subject: Re: Stus-List Gear shift
Hi,
I have a Viking 33 with an Atomic 4. I can only comment from my experience
with this one boat and Atomic 4 (well 2 as I replaced the original)
Comments below in bold type
<![if !supportLists]>1. <![endif]>Is there generally an “off” or kill
switch other than the ignition key? I have read in other posts about an off
switch that is used before turning off the ignition key
Mine just uses the keyed ignition as a kill switch.
<![if !supportLists]>2. <![endif]>This motor has an electric fuel pump
upgrade and there is no documentation on it. Should I assume it will turn on
with the ignition circuit or is there another switch I can’t seem to find?
Mine is powered by the ignition and is wired to the coil.
<![if !supportLists]>3. <![endif]> My previous experience with inboard
boat transmissions (older power boats) is that they are easy to operate when
the motor is not running. Mine is VERY difficult to move. The cable looks like
it is not damaged. I will probably end up disconnecting it from the
transmission to verify free operation but just curious about these reduction
gearing systems.
Mine is the same whether the engine is running or not. It kind of slips
into reverse with no clunking into gear. Forward is far more noticeable.
Reverse has a 2:1 ratio I believe and the forward it 1:1 direct drive
New oil in both engine and reduction gearcase. New fuel. New fuel filters. New
spark plugs. Compression check very good (~85lbs with very little variance). I
have not started it yet but that is my next step.
85lbs is not bad. A perfect or freshly rebuilt typically runs over 100lbs I
believe.
Now before someone asks why these items were not dealt with during the survey
or sea trial…. Those services would have cost almost as much as the boat. I
paid very little for the boat and was willing to take the risk. I know the
previous owner. He has been and still is at my marina. I have seen the boat in
the water and underway. I am an optimist at heart.
Head over to the moyer marine forums. You get loads of great info over there!
I got the Moyer exchange engine for my boat a couple of years ago. Most people
advised a diesel conversion but, I could not justify the cost and time
consideration when the A4 pushes my boat along just fine and it wasd drop in
replacement. There are still 20,000 of them out there running nicely and moyer
makes it a far more viable engine and perfectly serviceable.
Danny
Lolita
1973 Viking 33
Westport Point, MA
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