vro compadibility

[Shubobo72315]

Will a vro pump from a 1990 40 hp fit a 1990 60hp?

 

[tashasdaddy]

Re: vro compadibility

looks like it wiil work, why would you want to put a used VRO2 pump on a motor, i would either go premix, or use a new OMS pump.

 

[Shubobo72315]

Re: vro compadibility

what is a OMS pump?

 

[Brew2]

Re: vro compadibility

OMS pumps replaced VRO pumps in the late 90s I believe. I think OMS stands for "Oil Metering System" or something similar. You can do a search on OMS and probably spend the night reading posts.

I agree with tashasdaddy.....why put a 20 year old fuel/oil pump on a motor? Sounds like a breakdown waiting to happen. I'd spend the $$ on a new pump and save the potential paddle home.

 

[tashasdaddy]

Re: vro compadibility

personally i would send $60.00 on a premix fuel pump, and just premix my fuel. there is a conventional mount point for a convention fuel pump on your motor.

http://www.iboats.com/Sierra_18_735...z.36857--**********.747822932--view_id.174141

 

[kenmyfam]

Re: vro compadibility

Don't risk frying your motor to save a few bucks. I have never regretted going to a premix pump with mine.

 

[Shubobo72315]

Re: vro compadibility

I can still run my vro pump and just premix my gas right? Don't they make a vro style pump that is strickly premix to keep the stock appearence?

 

[kenmyfam]

Re: vro compadibility

I can still run my vro pump and just premix my gas right? Don't they make a vro style pump that is strickly premix to keep the stock appearence?

You can run your VRO pump with premix through the fuel side of it as long as it works. I believe that this side of the pump is rebuildable.
The stock appearance would be the last thing on my mind though. Not ruining the motor would be my first priority.

 

[Shubobo72315]

Re: vro compadibility

where can you mount one of the premix pumps at?

 

[kenmyfam]

Re: vro compadibility

Right where the VRO pump was. You may need to make an adapter plate. Nothing to it. I used an old cookie sheet when I had nothing else to use on vacation.

 

[tashasdaddy]

Re: vro compadibility

you can use the existing pump, as long as the fuel side is still good.

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 the 3 or 4 wire harness, going to the Vro pump. cut and cap the oil line going into the motor. add oil to fuel tank, mix well, then remove fuel line at top carb, catching gas in a container, pump the fuel line bulb until you get premixed gas to the carb. you can tell as it will change color. put line back on carb, and go boating.


the new premix pump that looks like the VRO/OMS pump, is just as expensive and a new OMS pump, $400.00. #5007422