Repairing Evinrude VRO Pumps

[wippb]

When asked about a kit to repair a VRO pump my local dealer told me that I would have to replace the VRO pump, $350.00 cdn. I want to disconnect the oil pump circuit but would also like to change the gas side as part of the routine maintenace this spring. Can the "gas" side diaphram of a VRO pump be repaired / replaced as in regular fuel pump.

 

[MOTAS]

Re: Repairing Evinrude VRO Pumps

Go to: www.dfitechnologies.com and get a refurbished one for less$$$$.<br />If it works, why do you want to eliminate it? <br />Manually, after 10 or 20 gas refills no one can tell what oil/gas ratio you have in your tank.

 

[wippb]

Re: Repairing Evinrude VRO Pumps

Thanks Motas<br />My motor is now 12 years old. I don't want any problems dealing with a malfunctioning VRO (blown head). I carry the gas in jerry cans down to the boat dock now, mixing it is no big deal. I have looked at the site you mention and it is still $100.00 US. That's $160.00 CDN plus shipping. I was looking for a cheaper solution.

 

[wippb]

Re: Repairing Evinrude VRO Pumps

Bump<br />Any others?

 

[jegervais]

Re: Repairing Evinrude VRO Pumps

There are assorted re-build kits for some of the pumps. The fuel diphragm is one of the available kits, but if you're going to disassemble it, considering its age you should go thru the air motor diaphragm and consider replacing the intermediate housing too. The air motor "drives" the pump and the rectifier valves in the intermediate housing can eventually deteriorate. If you have a 3-cylinder or larger motor AND if you're going to disable the oil anyway (I don't advocate it, but if you're determined, you may as well know all your options), consider the "Pre-Mix Conversion Kit" p/n 438402 it's about $150 U.S. ITS ONLY FOR 3-CYLINDER AND LARGER MOTORS. By the time you get thru screwing around with rebuilding a pump, you can have this installed and be back on the water...<br /><br />The only cheaper solution is to sell the boat and fish from the bank. (LOL) Haven't you ever heard B.O.A.T. = Break Out Another Thousand.<br /><br />-John

 

[russthemuss]

Re: Repairing Evinrude VRO Pumps

Can tou replace it with a cheap electric fuel pump?

 

[wippb]

Re: Repairing Evinrude VRO Pumps

John<br />My motor is a rude 60hp 3 cylinder. I went through my OEM manual last night and the recommended repair is "Buy new VRO". Can you elaborate a little more on these kits that you are talking about. Exactly what is it? I have been told on another board that I could just buy a three port fuel pump from earlier models and install this. Have you heard of this before? <br />I tried the fishing from the bank thing for years, then I bought waders so I could walk out and cast further. The boat was the next logical step because there comes a point to were the water starts to come over the top, and you can't cast very well while wearing scuba.

 

[seahorse5]

Re: Repairing Evinrude VRO Pumps

Are you having problems with the pump, or do you just want to disconnect the oil injection?<br /><br />If you are not having problems, just use it as a fuel pump and plug off the oil intake and disconnect the alarm wire connector. The fuel pump side is very reliable and should not give any problems, unless the engine backfires a lot. You can use the diaphram from any of the late model pumps and be sure to install the late model "blue" pulse limiter in the block if you don't already have one there.

 

[jegervais]

Re: Repairing Evinrude VRO Pumps

Wipper-<br /><br />I have to agree w/Seahorse. If the pump still works and you just want to disable the oil injection, follow his directions. If the pump is not functioning, it needs to be tested to determine what isn't functioning. For example, if you replace the fuel diaphragm and the problem is the air motor, not only are you wasting your time, you'll have to remove the pump a second time to do the job over. The available kits are dependant upon what pump the motor has. A QUALIFIED dealer should be intelligent enough to identify the pump, and see what kits are available on the accessories micro-fiche.<br /><br />I have heard of using the "3-port" fuel pump as you called it. It's a little less cash, but there is much more involved. You'll need the pump, a couple of preformed hoses (you don't want to use a length of "bulk" hose, it won't make the required bends without kinking and can cause problems). You'll also need a different style fuel filter, mounting screws and hose clamps and may need to fabricate a mounting bracket. The 438402 pre-mix conversion is a much simpler install.<br /><br />-John

 

[wippb]

Re: Repairing Evinrude VRO Pumps

Thanks all <br />John and SH<br />At present everything is Aokay. Last summer I had a couple of warning alarms (overtemp)and at the time didn't know what it was. Had a mechanic look at it and he didn't even know what the alarm was. Got it fixed myself. It kinda spooked me so I still plan on disconnecting the oil side, premixing and using the gas pump as you both recommend. I just got looking in my manual and when it said to replace VRO if it(the gas pump)wasn't functioning, I thought it would be a good post...and it was. I learned somthing new today. LOL It's still going to cost me $240 bux cdn to change to a premix kit if it dies.<br /><br /> "B.O.A.T. = Break Out Another Thousand."