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disconnecting oil inj.
nauset-heir	#1  Posted on 05/24/10 - 3:09 PM
Member Posts: 46 Comments: 0 Joined: 07/15/09	I have seen a few ads for Whalers where the seller states that the oil injection system has been DC'd and the oil is mixed with the gas in the tank. Is this better? Easier, More convenient? Why is this done and is it a selling point? Chris K
Joe Kriz	#2  Posted on 05/24/10 - 3:17 PM
Site Owner Personal Page Personal Album Photo Albums Project Albums Posts: 11447 Comments: 452 Joined: 03/18/05	Many people disconnect it because they don't want to spend the money to fix it properly. Others think they have to disconnect it because they think it might create a problem and burn up the motor. The VRO (Variable Ratio Oiler) which is now called OMS (Oil Metering System) is a great system. If you like adding oil to your fuel, possibly getting the mixture too lean or too rich, then go for it. Otherwise, it is recommended to stay with the VRO/OMS as your engine will burn less oil which also helps to keep the plugs from fouling as opposed to mixing oil by hand and adding too much oil which can foul plugs. I personally would never disconnect any VRO/OMS system. I hate pre-mixing..... Those are caveman days....
John Fyke	#3  Posted on 05/24/10 - 3:31 PM
Member Personal Page Posts: 1307 Comments: 0 Joined: 09/06/06	Joe Kriz wrote: I personally would never disconnect any VRO/OMS system. I hate pre-mixing..... Those are caveman days.... Too funny Joe. I haven't pre-mixed gas since I had a 9.9 Johnson on a 12' semi-vee 20 years ago and don't want to. John Fyke Re-Fit or Reef It 1979 15' Sport with Super Sport conversion and 70hp mercury.
Joe Kriz	#4  Posted on 05/24/10 - 3:39 PM
Site Owner Personal Page Personal Album Photo Albums Project Albums Posts: 11447 Comments: 452 Joined: 03/18/05	It's been about 30 years for me. In those days we had too because VRO wasn't invented yet.
MW	#5  Posted on 05/24/10 - 4:57 PM
Member Personal Page Posts: 1827 Comments: 10 Joined: 01/08/06	I mixed it yesterday, I'm "Old School", I paid extra for the dealer to disconnect it when I bought the engine new. It's only a 6 gallon tank. Like I said, I'm "old school", I still go back to the old neighborhood that I grew up in because, I think that the pizza tastes better from there. Matt
ioptfm	#6  Posted on 05/24/10 - 6:19 PM
Member Personal Page Posts: 1533 Comments: 3 Joined: 10/28/06	I'm not sure what the purpose would be in disconnecting it "if it ain't broke" Seems like one is only adding unnecessary hassels Tom 1979 Sport 15'
joninnj	#7  Posted on 05/24/10 - 6:46 PM
Member Personal Page Posts: 408 Comments: 3 Joined: 06/07/07	People are very head strong about outboard oil injection at times... Outboard oil injection systems has been around since 1984 when Yamaha enter the US, maybe earlier in the EMEA or AsiaPac markets. Mercury introduced it the same year and OMC shortly after... 25 years now in use on outboards in the North America... Oil injection technology has been in use since the 60's on motorcycles (maybe earlier). This is a very tried and tested technology regardless of who makes it (or should I say did make it...its already almost obsolete) Many Mercs and Yamaha's had very similar systems on many models, even used the same pump... I can't comment on the DFI's. My brother has an Evinrude, 1991/92 (I think a 140 HP) with a VRO, it works... My opinion is, the weakest point of these systems are the hoses which should be replaced periodically (5/7 years) anyway... This is not written in the manuals...but believe me the hoses need to be inspected an replaced. If they are maintained they will work a long time. My 2 cents Chris, I am sorry I went off the topic.. NO I would not consider this outboard... But at the right price the package may a worth while. We need more details on the boat, year model etc... "I have seen a few ads for Whalers where the seller states that the oil injection system has been DC'd and the oil is mixed with the gas in the tank. Is this better? Easier, More convenient? Why is this done and is it a selling point? Chris K" Edited by joninnj on 05/24/10 - 7:13 PM Jon in NJ Many other boats and outboards in my boating history The Whaler is the one I like the best!!!
edmaude	#8  Posted on 05/24/10 - 8:02 PM
Member Posts: 117 Comments: 0 Joined: 07/02/08	I had a working VRO pump on my boat when I purchased it a 2 summers ago. It was a newer unit and worked great..... Then It went south, but thankfully I had replaced my warning horn that alerted me that I was getting air in the oil line. If not for the horn working I could have kissed my engine goodbye since I would have had no clue that the system was not working correctly.....[color=#ff0000]Many thanks to Joe Kriz for this tip[/color] I replaced all the lines and OMC hose clamps to the VRO system and it still tripped the alarm. I then removed the VRO system completely and replaced it with a standard OMC fuel pump that was about 60 bucks new on Boats.net. Not more worries, but I do miss the VRO especially for the the less smoke while running at idle speeds You can run the VRO pumps with the oil side disconnected, but for a few bucks I would replace it with a standard straight fuel version. On the 90/100/115 OMC motors you can use the pump for the SPL 88 motor Hope I didn't ramble too much
John Fyke	#9  Posted on 05/24/10 - 8:41 PM
Member Personal Page Posts: 1307 Comments: 0 Joined: 09/06/06	Fuel pumps on a Yamaha are big bucks. John Fyke Re-Fit or Reef It 1979 15' Sport with Super Sport conversion and 70hp mercury.
nauset-heir	#10  Posted on 05/25/10 - 7:23 AM
Member Posts: 46 Comments: 0 Joined: 07/15/09	Thanks everyone for all the responses. I think this is why I keep coming back here. A broad range of opinions and a lot of experience and knowledge, and passionate arguments. I bought this boat at a great price. It is a high,dry 64 Nauset with original top and bottom paint and the VRO being used. I will continue to use it. The 100 hp commercial Johnson is going on my restored 68 (with all new hoses,cables,wiring) and when I finish the 68's restore I will power it with what seems to be the ultimate engine according to what I percieve as the general opinion here: 9o E-tec. So thanks again to all and I look forward to starting more of these ummm..stimulating threads. Chris
CES	#11  Posted on 05/25/10 - 8:24 AM
Member Personal Page Photo Albums Project Albums Posts: 2681 Comments: 7 Joined: 04/27/07	Even with the early VROs failing as they have, the replacement parts are of much better quality than the earlier models. If you had to replace a VRO in the past, chances are that the new VRO is of much better quality than the original. There's no reason to disconnect the VRO any longer. Edited by CES on 05/25/10 - 9:34 AM Cliff 1966 13' Sport with a 1993 40hp Yamaha 2 Smoker