1991 johnson 40 hp running with tone sounds

[MudLake]

My rebuilt 40 hp in running perfectly.

I wish to mix my oil ang gas for the life of this engine.
I am mixing 25 to 1 for break in purposes since it was just rebuilt.

How do I disable the tone for no oil. I have routed the out of the vro fuel side into the oil side of the vro strictly for lubrication of the oil side of the vro.

My vro has a 4 wire system.

When I first turned the key i had a loud tone.
after the engine run for a while it went to a lesser tone, I think.

Is there a wire i can connect or disconnect to disable the NO OIL tone???

cheers

doug

 

[Daviet]

Re: 1991 johnson 40 hp running with tone sounds

Did you unplug the 4 wire connector?
Usually you just plug the oil line and disconnect the wire harness.
I don't quite under stand the rerouting of the lines for lube purposes??

 

[MudLake]

Re: 1991 johnson 40 hp running with tone sounds

I just routed fuel into the oil side of the vro for lube purposes.

I did unplug the 4 wire connector and still have continues sound.

 

[Daviet]

Re: 1991 johnson 40 hp running with tone sounds

Take a look at this post, maybe it will help.http://forums.iboats.com/showthread.php?t=388154

 

[MudLake]

Re: 1991 johnson 40 hp running with tone sounds

I am still using the vro as a fuel pump.

I may try the solution of filling the oil side of the vro with dark colored oil and see if the solid tone stops.

 

[Daviet]

Re: 1991 johnson 40 hp running with tone sounds

Just reread you post, if it is a constant tone might be the temp sender. Disconnect the temp sender and turn on the key and see if the tone stops.

 

[MudLake]

Re: 1991 johnson 40 hp running with tone sounds

That was done.

key off. pulled sensor wire and still got continuous tone after key on.

 

[Daviet]

Re: 1991 johnson 40 hp running with tone sounds

I am ntt positive but I thought that the VRO system use an intermintent horn and the cooling system used a constant horn. With the wiring harness unplugged to the VRO, I don't know what would turn the horn on.
I am sure someone with experience with your system will come along and offer some advice.

 

[d.boat]

Re: 1991 johnson 40 hp running with tone sounds

Ok, this is confusing to me re: tones you're getting, how you disconnected the oiling system, etc.

First, the alarm tones. Can you specify which of the following you're getting?

Constant beep: this indicates overheat. (in V6 and V8 engines it can also be fuel restriction, but your 40 hp does not have that)

slow intermittent beep, beeps every 30-40 seconds: indicates "Low oil". This signal comes from the oil tank float switch (via the two wire cable coming from the tank).

rapid intermittent beep, beeps every second: indicates "No Oil". This signal comes from the VRO/OMS fuel/oil pump (via the 4 wire cable).

Which alarm is it??

Second, go back and follow the very simple proper disconnection procedure. Do not do the following things you've done or are thinking of doing such as "routing the out of the vro fuel side into the oil side of the vro strictly for lubrication of the oil side of the vro" or "filling the oil side of the vro with dark colored oil and see if the solid tone stops".

Simply do the following:

1. Disconnect two wire cable that runs from the engine to the oil tank. This will be two separate wires or a two prong plug. Disconnect this inside the engine compartment. Tape and secure the wires or two prong rubber plug that remains inside the engine compartment. This will eliminate any false "low oil" alarms.

2. Cut the oil line an inch or two from the VRO/OMS pump. Plug with a bolt and clamp with a hose clamp. Alternatively. simply remove the oil line from the pump and cap and clamp. Either way, make sure it's air tight.

3. Remove oil tank.

4. Unplug the 4 wire harness from the VRO/OMS pump. Tape and secure the corresponding plug that remains inside the engine compartment. This will prevent any false "no oil" alarms.

This is all you have to do! It will completely disable the oil mixing and oil-related alarms without affecting any other function. My guess is that your problems come from the fact that you've not followed the above procedure.

 

[MudLake]

Re: 1991 johnson 40 hp running with spark issues UPDATE

Re: 1991 johnson 40 hp running with spark issues UPDATE

Tones sometime go away. thats good

Took boat out on water and had carb or spark failure.

Came home and soaked carb in lacquer thinner the remove more varnish deposits. started it up in a barrel.

Maybe not a carb problem.
Hard to determine if spark or carb issue. However today i started it up and concluded it has a weak or Intermittent spark on bottom cylinder.

Interchanged the plugs no difference.
interchanged plug wires no difference.

Pulled top spark plug wire off while running motor stalled.
Pulled bottom spark plug wire of while running and motor kept running on one cylinder.
Bottom spark does not jump as far as top stark and is also intermittent.

Conclusion: bad spark circuit for bottom

Where do I go from here??
What to check or even change first?

cheers