The old faithful vro

[nelly]

My mechanic told me that a vro unit should be replaced every 10 years. Here is my history. 1995 60 hp evinrude vro, bought it used in 2003 with 150 -151 psi in every cylinder., burned maybe 6 tanks of gas though the engine at 65 liters each to present. ( no more than 90 gallons of gas). I know that age does have a factor on the decay so is this true ? Should I invest in the purchase of a new vro and install it, or keep on going. I have checked for bad fuel lines and connections , am considering changing carb and oil lines as well all fuel lines to motor. I would rather look ahead than say I should have. All work has been done to motor as carbs rebuilt and cleaned in 2008, impeller changed in 2007, and engine religiously fogged, full fuel stabilizer , bottom end oil change every year. PS> I do not have a problem with the VRO.
Thank-you in advance. Greg

 

[nvr-enuf]

Re: The old faithful vro

I have VRO on my early 90's 70 hp johnson. If you want to eliminate oil injection and simply mix your oil / fuel you can simply remove the VRO and never worry or have the unit fail to cause you even more issues. Below is a summary of how to remove the VRO that I received from forum members. You may want to do this just to ensure that the engine always has oil when running.


(VRO Pump Conversion To Straight Fuel Pump)
(J. Reeves)

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 (and fuel restriction warning if so equipped) by doing the following:

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.

2 - Trace the two wires from the oil tank to the engine, disconnect those two wires, then remove them and the oil tank.

3 - Mix the 50/1 oil in the proper amount with whatever quantity 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.

 

[dingbat]

Re: The old faithful vro

I have a 97 200 HP. Has more hours on it than May West.

Changed out off the fuel, oil and vacuum lines last summer for good luck. We?ve gone to E10 fuel so I wanted to make sure that the hoses where in good shape and compatible with the 10% alcohol in the fuel. Most of the hoses where showing their age so it was time one way or another.

VRO wise I?m on my second one. The first one developed a leak shortly after we changed over to E-10. Coincidence, who knows.

 

[Dhadley]

Re: The old faithful vro

Just an FYI - neither the 95 60hp nor the 97 200 had VRO pumps from the factory. They were the OMS pump. Sounds like your mechanic doesn't know or understand the difference. They are very good pumps and have more warning circuits than the old VRO pump. Disconnecting the pump will disable those alarms that you're much better off with than without.

 

[chubcobear]

Re: The old faithful vro

Thanks for that info Mr. DHadley. I am trying to get my brother-in-law to keep his OMS on his motor. His Mechanic is giving him the same bozo info. I think it best if he keeps the OMS.

 

[Dhadley]

Re: The old faithful vro

Absolutely keep it! I've seen many more motors with damage from incorrect or no oil in the fuel than from a bad oil pump. And there is no alarm if you forget to add oil to the fuel.

 

[kenmyfam]

Re: The old faithful vro

And there is no alarm if you forget to add oil to the fuel.[/QUOTE]

The only alarm is your bank balance !!!