marrypires12
29.05.2021 16:39:12
Re: Can I switch from VRO to regular fuel pump here
See full version: Can I switch from VRO to regular fuel pump
Re: Can I switch from VRO to regular fuel pump here
Re: Can I switch from VRO to regular fuel pump [links]
That person apparently didn't want to be bothered. The job of a fuel pump is to pump fuel. The float in the carb sets the fuel level so the pump has absolutely nothing to do with emissions. Besides, those engines had no emission certification anyway.. here
Re: Can I switch from VRO to regular fuel pump
The VRO was disabled when I bought the boat. I've heard they are unreliable, but I have no firsthand experience
Evinrude & Johnson Technical Service recommend that ANY TIME the VRO pump or hoses are serviced (or any time the oil tank is drained and refilled) that you run a couple of tanks premixed at 50:1 until you determine the pump is drawing oil. I usually only put 1 gallon of oil in the tank and mark the level with a magic marker or piece of tape. Once you see that the oil level in the tank is going own it is permissible to go to straight fuel. (I do know a couple of paranoid individuals who run an additional 100:1 premix all the time - If they're happy, I'm happy!)<br /><br />Have a safe and fun boating season.<br /><br />-John<br /><br />One item to add, as Mr. Philby noted: Make sure the alarm system works! [links]
I beg to differ. We check all of the VRO motors that come into our shop as described above and the majority of them have a cracked pump housing allowing fuel into the oil. These are generally bullet proof motors once the VRO is disconnected.
Thanks John and MrMerc. <br /><br />It sounds a bit complicated, and i am new to both this motor and the system, maybe i should take it to the shop. Is failing VRO and blownup engines a weakness at these motors ? Is this motor looper or crosflow, -did they change the model i 88 ?<br /><br />Will disconnecting VRO harm the system, or can it be connected again. How does the fuelpump function when the power cord i disconnected ? Och this is many questions - thanks for your patiense.
ok, i dont really know much about this topic, but i do know that i have a buddy that has disconnect that vro thingy and it is a 150 hp, johnson. he manually mix oil with gas. been running for past 6 months. no prob.<br /><br />i will let you know how he did it -- i'll ask when i see him. <br /><br />good luck. here
John thanks for all your advise.<br /><br />I was just wondering. What if i cleaned tank hoses and connectors, and used the system. Can i premix in 1:75 i exa. and use VRO in the same time and watch the oil consumption to check the system. I would of course have too rich oil mixture, but avoid to harm the motor, and by mesuring fuel and oil consumption, i will know the system works. Good or bad idea.
John from Illinois<br /><br />Great post.!<br /><br />I think the VRO has had a bum rap . My dealer here in England says he has never had one go yet !! Again he has had problems blamed on the VRO that have not been VRO related .<br /><br />I persevere with my VRO and in my case I am more likely to forget to pre mix than have the VRO fail .<br /><br />John , this is a most informative post. Plenty of information and sound advice. The water ingress into the oil resevoir is a good point. I've had it myself. I've said it before :<br /><br />1/ Fresh oil every season.<br />2/ make sure its primed.and oil is visible in the see through thingy.<br />3/ make sure the alarms are working.<br /><br />Not saying they never fail, but if you read Johns comments I think the odds are a bit better stacked than people would have you believe.
Where can I find a VRO replacement pump w/o the oil pump side? more
the answer is in your previous post. you will have to do a little moving of the fuel lines, and if the engine is not pre ported for the pumps, you will have to do it. other wise buy a vro pump.
http://forums.iboats.com/showthread.php?t=225336 [links]
You are asking for a great deal of trouble installing an electric fuel pump on a two stroke motor. The key issue is safety. Consider this. Your engine dies because a float, inlet needle, or seat is not functioning properly. Unless you turn the key off, that pump will fill the engine up with fuel and hydrolock it. Then there is the worse scenario where you have an accident or fire. There is no way to shut the pump off unless you remember to turn the key off. Electric pumps are used on four stroke and FI two strokes because they need higher pump pressures. On four strokes an oil pressure switch controls the pump. No oil pressure -- the fuel pump quits just like on your car. On a two stroke the computer shuts down the pump. A standard vacuum/pressure fuel pump minus the vro can be fitted to the engine to do what you want to do -- safely.
I want to remove the VRO pump from my 1986 200 Evinrude. Does anyone make the pump without the oil pump side just the fuel pump? here
The VROs first came out in 1984 and have been upgraded quite a few times. In my opinion, back around 1988, they had perfected them but I think that they were upgraded even more since then. As long as the warning system is operating as it should, I feel quite at ease with them.
(VRO Changeover Judgement Call)
(J. Reeves)
That's it. If you want to test the heat warning system to ease your mind, have the key in the on position, then ground out the tan heat sensor wire that you'll find protruding from the cylinder head. The warning horn should sound off. here
Meet the MasterTech!
(click picture)
Wondering
"Where-n-Ell"
to get great parts for your outboard?
This kit includes a 3-hose pump with 5/16" hose nipples and uses the original VRO pulse hose (or longer piece if necessary) when mounted in place per installation guide above and a barb fitting to replace the original pulse limiter on the block (supplies higher volume pulse to pump). here