no oil alarm on vro disconect

cpoynter84

Seaman Apprentice
Joined
Dec 18, 2009
Messages
31
I disconnected the vro yesterday on my 96 johnson 150 and now the no oil alarm keeps going off. I already mixed. The oil in the tank. Please help!
 

d.boat

Chief Petty Officer
Joined
Sep 19, 2008
Messages
520
Re: no oil alarm on vro disconect

Did you disconnect the wiring harness that comes out of the fuel/oil pump? It is a three or four wire wire cable with a rubber connection plug. Just disconnect it and secure it so it does't flop around in there.

I'll assume that you removed the oil tank and disconnected the two wire connection that it had?
 

cpoynter84

Seaman Apprentice
Joined
Dec 18, 2009
Messages
31
Re: no oil alarm on vro disconect

I took out the tank and disconnected the wire that runs from the tank to the motor. It had a plug that I disconnected. Is that the only wire? Could the hose that I plugged with a bolt be sucking some air in? Would that cause that?
 

mikesea

Lieutenant Commander
Joined
Oct 1, 2006
Messages
1,830
Re: no oil alarm on vro disconect

you need to disconnect all harnesses at the vro
 

cpoynter84

Seaman Apprentice
Joined
Dec 18, 2009
Messages
31
Re: no oil alarm on vro disconect

I will take another look at it. Thanks for the help.
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
28,074
Re: no oil alarm on vro disconect

Just as a data point, did the OMS pump fail? Is that why you went to premix?
 

cpoynter84

Seaman Apprentice
Joined
Dec 18, 2009
Messages
31
Re: no oil alarm on vro disconect

No it didn't fail. I just don't trust it. I just got the boat and I don't like the idea of if it does fail its going to be to late to tell. I don't want a blown motor.
 

d.boat

Chief Petty Officer
Joined
Sep 19, 2008
Messages
520
Re: no oil alarm on vro disconect

No it didn't fail. I just don't trust it. I just got the boat and I don't like the idea of if it does fail its going to be to late to tell. I don't want a blown motor.

Yea, as I mentioned, there's also a wiring harness coming out of the pump itself.

That system has excellent alarms, so it will tell you if it's failing, not a "too late to tell" deal at all. That's actually what you're hearing - it's doing its job perfectly, telling you the pump isn't getting oil!

You should read this interesting article: http://continuouswave.com/whaler/reference/VRO.html
 

cpoynter84

Seaman Apprentice
Joined
Dec 18, 2009
Messages
31
Re: no oil alarm on vro disconect

Yea, as I mentioned, there's also a wiring harness coming out of the pump itself.

That system has excellent alarms, so it will tell you if it's failing, not a "too late to tell" deal at all. That's actually what you're hearing - it's doing its job perfectly, telling you the pump isn't getting oil!

You should read this interesting article: http://continuouswave.com/whaler/reference/VRO.html

So when the alarm goes off and says no oil or low oil and I'm 20 or 30 miles offshore and the vro isn't working what am I supposed to do? By taking the vro off and mixing myself I have one less thing to worry about.
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
28,074
Re: no oil alarm on vro disconect

I carry a gallon of oil with me, at all times. if the no oil alarm comes on, I dump the oil into the fuel tank(63 gal), agitate the boat a bit and away I go.....

That OMS system has a good reputation, and not mixing is real convenient.
 

d.boat

Chief Petty Officer
Joined
Sep 19, 2008
Messages
520
Re: no oil alarm on vro disconect

So when the alarm goes off and says no oil or low oil and I'm 20 or 30 miles offshore and the vro isn't working what am I supposed to do? By taking the vro off and mixing myself I have one less thing to worry about.

I'm not arguing with your logic at all. On the other hand, from my own personal experience pre-mixing for a lifetime, I know that I've made mistakes in pre-mixing in my built in tanks. Some I've caught and corrected, some I've been unsure of so added oil anyway (double oil probably), some I have no doubt I just didn't realize and probably ran a low ration oil from time to time. I doubt I ever forgot to add oil to a completely empty tank, but it's the partial tanks and normal distractions during filling/calculating, etc. that probably happened.

So pre-mixing is not infallible, and from everything I've read and been told by real experts, the up-to-date VRO/OMC mixing system is as reliable as any and likely more reliable, overall/statistically than fallible me.

Aaaaanyway, it's good either way and I don't mean to imply that what you're doing is unreasonable. Peace of mind is all that matters when you're out in the middle of nowhere and whatever gives you that - whether that be trusting your own reliability or that of your machine - is what you should follow. The balance tips to the machine when it comes to my personal reliability. It's just that there's a lot of urban legend about the unreliability of the VRO/OMS system that doesn't seem to exist with other brands for some reason.

As for your comment on what to do if the system should fail, it's very easy to deal with ....

What I plan to do, should I ever get a "no oil"alarm when I'm out in the middle of nowhere (which is 90% of my boating) is to just take the spare oil I always have on the boat and mix into the existing gas I have. Like you probably do, I always have a gallon or more on board so it's there when I'm at the gas station to fill up. Should I actually have no spare oil on the boat (not likely), I'll take my handy turkey baster (which I use to periodically test the condition of the oil at the bottom of the oil tank) and suck the oil out of the oil tank and transfer it into the gas tanks. I've totally emptied the ~2 gallon tank a couple of times and it only takes a couple of minutes per quart. Should I not have my turkey baster, I'll disconnect the oil line and use the primer bulb to do the same.

We all make our own decisions. For me, I've decided I'm less reliable than the properly maintained system with it's reliability and excellent alarms. Every well-respected local mechanic (independent and dealer) I talked to about this thought I was just crazy to go with pre-mix over a good condition VRO/OMS, so I stuck with it and so I'm liking it!
 
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