115 HP v4 VRO Johnson what is VRO? - iboats Boating Forums
Apr 13, 2009 · Re: 115 HP v4 VRO Johnson what is VRO? Variable Ratio Oiling This engine should have an oil tank under the cover (some may use a remote tank). It monitors load and RPM and …
Vro pump, how to check - iboats Boating Forums
Jan 28, 2002 · Re: Vro pump, how to check The VRO is both a fuel pump and an oil pump - it is operated by an air motor which uses a diaphragm and rectifier valves to convert crankcase pressure …
To remove VRO or not to remove? - iboats Boating Forums
May 9, 2013 · Re: To remove VRO or not to remove? You obviously feel that your VRO pump is old and its reliability is in doubt. VRO pumps do fail, some much younger than yours. It is a calamity when …
How reliable is the VRO system? - iboats Boating Forums
Dec 18, 2003 · Re: How reliable is the VRO system? It would be best to install a new VRO with all it's improvements compared to the 10 year old unit that you have. At the same time, clean out the oil …
Why delete the VRO ? | Boating Forum - iboats Boating Forums
Dec 7, 2011 · The VRO consists of 2 pumps, one for oil and one for fuel. What controls the pump is the fuel back-pressure, and when that goes away, like when running out of fuel, the pumps starts …
new to me - 1997 Evinrude 150 "No Oil" alarm sounding (VRO is ...
Mar 6, 2013 · On this model, this signifies a VRO problem only. Previous owner bypassed the VRO system and was using pre-mix. I verified that both the oil level sensor and VRO sensor connections …
VRO Failure- What are the symtoms? Quick death or slow failure.
Jun 23, 2012 · Re: VRO Failure- What are the symtoms? Quick death or slow failure. my 150 vro seemed to quit immediatly,alarms worked. but I had just bought mine and there was silicone on as a …
How to remove VRO system? - iboats Boating Forums
Jan 15, 2010 · Re: How to remove VRO system? VRO conversion w/ pump still working if the fuel side on your Pump is still working it is very simple. unplug the 2 line harness going to the oil tank, unplug …
VRO (3 wire vs 4 wire) | Boating Forum - iboats Boating Forums
Jul 21, 2009 · Re: VRO (3 wire vs 4 wire) I've read that the 4th wire was introduced to provide 12V power for the alarm circuit board, since the previous 3 wire versions use rectified voltage from the …
Replacing VRO pump with NON VRO fuel Pump - iboats Boating Forums
Aug 6, 2007 · Re: Replacing VRO pump with NON VRO fuel Pump Basically, you will remove the air silencer and starter to gain access to the VRO pump. Then remove VRO pump wiring and fuel lines …