Is VRO system connected?

nightstalker

Chief Petty Officer
Joined
Dec 10, 2003
Messages
570
I bought a rig with a 1994 Johnson 225. I'm not sure if the VRO system is connected. The gas line and oil line from the oil holding tank both slip into a small square coupling with 4 nipples on it (2 on each side). The oil and gas line each go into the 2 nipples on the left of this connection but only the gas line is attached to one of the nipples on the other side. The nipple where I think the oil line to the engine would connect has a rubber fitting slid over it with a hole at the end. When I squeeze the bulb from the oil tank, oil shoots out of the end of the nipple. The oil tank is one half full. I'm afraid to run it without knowing if the system is working. Can anyone help me?<br />Stalker
 

nightstalker

Chief Petty Officer
Joined
Dec 10, 2003
Messages
570
Re: Is VRO system connected?

Thanks Rick:<br />When the VRO was connected, was there an oil tube going from the nipple with the rubber cap that went to the oil side of the VRO? Can I take out the oil tank even though it's half full, or will the low oil warning horn go off?<br />Stalker
 

rickdb1boat

Supreme Mariner
Joined
Jan 23, 2002
Messages
11,195
Re: Is VRO system connected?

Yes and Yes. You can remove the oil tank and associated lines. Asuuming the VRO electrical connector is still in place at the VRO, diconnect it or you will low oil alarms going off. It's a rubber looking plug with a spring retainer by the vro on the powerhead. Just remove the spring(if it's still there) and pull it loose. Tape it up with electrical tape. It will not affect the overheat horn in any way! Also, make sure the rubber cap on the nipple has some sort of clamp on it, so it does not come off and let contaminents into the fuel pump side of the pump. A zip tie will do. I'm betting that's why it was left half full in order to stop the low oil alarm from coming on. Apparently, he did not know the proper procedure for disconnecting the VRO. This is what I was told when I asked how to disable my VRO some time ago by a very sharp member:<br /><br />
I know these engines pretty well and can finish up for you. Find the wiring harness that comes off the back of the VRO. Depending on the age of the pump it may have three or four wires, black, grey, tan and if it's a 4-wire, purple. The wires run to a round black rubber plug about 2" long & 3/4" in diameter. remove the spring-clip from it and un-plug it (it WILL be left disconnected or you will get false alarm signals). Next, find the 2 wires that run from the oil tank to the motor. Find the connectors and unplug them, pull the wires out of the cowl and remove the oil tank from the boat. Remember to premix at 50:1 and you're done.<br /><br />BTW - It's very important to inspect the capped oil fitting periodically. If the cap should fall off, it will allow contaminants to get into the pump and it will gum up and fail. If it ever does fail, there is a "premix conversion kit" for 3-cylinder & larger OMC motors (p/n 438402), that eliminates the oil pump section of the pump and cost about $100 less than a VRO.<br /><br />
 

Joe Reeves

Supreme Mariner
Joined
Feb 24, 2002
Messages
13,262
Re: Is VRO system connected?

NightStalker..... NO offense intended but it appears to me that neither you or the dealer you bought the boat/engine from has any working knowledge of the mechanical aspects of the engine.<br /><br />Due to the above, I strongly suggest that you have a mechanic that is experienced in the OMC outboard line inspect the engine. Failure to do so may result in what might appear to you a small oversight, but would actually cause the destruction of the engine. (It happens!)<br /><br />Pertaining to eliminating the automatic fuel/oil mixture setup, the following may be of interest to you.<br /><br />********************<br />(VRO Changeover Judgement Call) <br />(J. Reeves)<br /> <br /> The VROs first came out in 1984 and have been upgraded quite a few times. In my opinion, back around 1988, they had perfected them but I think that they were upgraded even more since then. As long as the warning system is operating as it should, I feel quite at ease with them.<br /><br />Some boaters have voiced their thoughts such as "What if that overpriced plastic horn should fail while I'm under way for some reason, and the VRO decides to fail five minutes later?" Obviously that would result in a big problem which really brings their fears into view.<br /><br />The word "ease" is the key word though. If one has the slightest feeling of being ill at ease with that setup, then they should take the route they feel more at ease with. A judgement call each individual would need to make on their own.<br /><br />********************<br />(VRO Pump Conversion To Straight Fuel Pump)<br />(J. Reeves)<br /><br />You can convert the VRO pump into a straight fuel pump, eliminating the oil tank and VRO pump warning system, but retain the overheat warning setup by doing the following:<br /><br />1 - Cut and plug the oil line at the engine so that the oil side of the VRO pump will not draw air into its system. Trace the wires from the back of the VRO to its rubber plug (electrical plug) and disconnect it.<br /><br />2 - Trace the two wires from the oil tank to the engine, disconnect those two wires, then remove them and the oil tank.<br /><br />3 - Mix the 50/1 oil in the proper amount with whatever quanity fuel you have. Disconnect the fuel line at the engine. Pump the fuel primer bulb until fuel exits that hose with the tint of whatever oil you used. Reconnect the fuel hose.<br /><br />That's it. If you want to test the heat warning system to ease your mind, have the key in the on position, then ground out the tan heat sensor wire that you'll find protruding from the cylinder head. The warning horn should sound off.
 

moderator1

Lieutenant Commander
Joined
Dec 5, 2002
Messages
1,668
Re: Is VRO system connected?

This topic has been combined with Ocean Pro.
 
Top