Need Some VRO Guidance Please!

[Krisian74]

Hi my name is Ian,
I have a 1997 Evinrude V4 115hp outboard. I recently deleted the Oil from the VRO but like many others the VRO pump was already pooched because it will not work as a pump and do not get any fuel pressure.
Anyway, I purchased a regular OEM fuel pump( Inlet, outlet and pulse) but I have no idea how to hook it up. Seems pretty easy on a 80’s motor but on the 97 motor I can’t pull the VRO because it is tied in via a hard 90 outlet from the pump to the Vapour separator components. Is there any way to leave the existing VRO in place and install the new fuel pump? and if so how does that affect the Vapour sep? As I said there is an outlet off the top of the VRO…will it affect functionality with out any feed from the VRO?

Recap of question: Can I add a Fuel Pump and bypass the VRO without removing it and affecting and ancillary components?

Parts list

FUEL BRACKET & COMPONENTS - 1997 Outboard 90 BE90SXEUA | Crowley Marine

View parts diagrams and shop online for FUEL BRACKET & COMPONENTS parts, 1997 Outboard 90 BE90SXEUA. Offering discount prices on OEM parts for over 50 years. FAST $4.95 shipping available.

www.crowleymarine.com

Thanks for the help,
Ian

 

[dingbat]

Hi my name is Ian,
I have a 1997 Evinrude V4 115hp outboard. I recently deleted the Oil from the VRO but like many others the VRO pump was already pooched because it will not work as a pump and do not get any fuel pressure.
Anyway, I purchased a regular OEM fuel pump( Inlet, outlet and pulse) but I have no idea how to hook it up. Seems pretty easy on a 80’s motor but on the 97 motor I can’t pull the VRO because it is tied in via a hard 90 outlet from the pump to the Vapour separator components. Is there any way to leave the existing VRO in place and install the new fuel pump? and if so how does that affect the Vapour sep? As I said there is an outlet off the top of the VRO…will it affect functionality with out any feed from the VRO?

Recap of question: Can I add a Fuel Pump and bypass the VRO without removing it and affecting and ancillary

One would think if the "OEM fuel pump" was a viable alternative or substitute for this particular motor, the part would be referenced as such in the parts listing.

Would be earlier to rebuild the existing OMS and kept the convenience and functionality of the OMS system.

 

[flyingscott]

That is a looper motor I believe you need to keep the VRO. Look at OMCs premix style VRO. Or if you don't t pay the price or have the oil injection, there are cheap chineseum vro pumps available

 

[Krisian74]

One would think if the "OEM fuel pump" was a viable alternative or substitute for this particular motor, the part would be referenced as such in the parts listing.

Would be earlier to rebuild the existing OMS and kept the convenience and functionality of the OMS system.

Yeah, I think I will have to try and get a cheap Charlie and rebuild the one I have…just trying not to spend $500…thanks

 

[Krisian74]

That is a looper motor I believe you need to keep the VRO. Look at OMCs premix style VRO. Or if you don't t pay the price or have the oil injection, there are cheap chineseum vro pumps available

…that is what I was worried about . Thanks for taking the time to respond.

Cheers

 

[racerone]

Take the VRO pump apart.---See what is wrong.----Repair as needed.----The VRO is driven by CRANKCASE pressure pulses.---So check that.,----A cylinder compression test may offer clues.