Wellcraft V20 Community

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Wellcraft V20 Community (https://forums.wmpdevserver1.com/community/index.php)

- Performance (https://forums.wmpdevserver1.com/community/forumdisplay.php?f=15)

- - VRO (https://forums.wmpdevserver1.com/community/showthread.php?t=7344)

randlemanboater

01-23-2007 01:29 AM

VRO

I have noticed that some people dont use the VRO on their OMC's, why is that?

I had VRO on my 1989 Evinrude 200's and it seemed to work well.

macojoe

01-23-2007 01:39 AM

Re: VRO

Then you were one of the lucky ones!!

There is no signal or anything to tell you that it stopped pumping oil, and when you have figured it out it is because the motor just blew!

Been there done that with my Yamaha! I will always if possible disconnect any oil injection for now on!

Skools Out

01-23-2007 01:48 AM

Re: VRO

the grey tach wire runs the VRO pump and if the rectifier stops sending the tach signal for a sec the oil stops so best to remove them.

THEFERMANATOR

01-23-2007 02:02 AM

Re: VRO

Quote:

Originally Posted by macojoe

Then you were one of the lucky ones!! *

There is no signal or anything to tell you that it stopped pumping oil, and when you have figured it out it is because the motor just blew!

Been there done that with my Yamaha! I will always if possible disconnect any oil injection for now on!

What he said, they had a flow sensor in them but it only went off it the pump piston wasn't moving. Many times the whole thing quit and wouldn't set off the alarm. On a carb'd 2 stroke or most low pressure EFI(NOT a DFI) you can disconnect it and then you know it gets the oil.

I got a 250 YAMAHA at the house that is a prime example of what a failed oil injection system can do. But I ran the oil injection system on all of my 25HP SUZUKI's with ZERO problems.

reelapeelin

01-23-2007 09:18 AM

Re: VRO

Mixing oil/ gas is not as much PIA as dealing w/ blown powerhead ... MJ's right about your luck ;) ... when I first got my boat, it had an '86 Rude ...FIRST thing I did was have carbs rebuilt and auuto-oiler(VRO) DISCONNECTED ... they have a history and it ain't pleasant ... too many things to go wrong ... :P ...

randlemanboater

01-23-2007 10:33 AM

Re: VRO

Sounds like a good reason to run a 4 stroke.

THEFERMANATOR

01-23-2007 04:13 PM

Re: VRO

Quote:

Originally Posted by randlemanboater

Sounds like a good reason to run a 4 stroke.

Some of us still like our outboards to growl at us though ;D.

randlemanboater

01-23-2007 04:20 PM

Re: VRO

I've got 3 kids, they make plenty of noise.

macojoe

01-23-2007 08:57 PM

Re: VRO

Keep the 4 stroke!! I like a nice powerful 2 stroker!!

Skools Out

01-24-2007 12:25 AM

Re: VRO

i'll keep my 2 stroke's

bradford

01-24-2007 01:07 AM

Re: VRO

Ahhhh! I love the smell of two stoke exhaust in the morning!!! 8)

THEFERMANATOR

01-24-2007 02:40 AM

Re: VRO

Aint nothin like smoke on the water ;).

reelapeelin

01-24-2007 06:11 AM

Re: VRO

Don't get me wrong guys...no Merc dealer here, so no Opti...E-Tec wasn't out w/ this size motor when I got the 4-stroker ...I got no probs w/ 2-stroke ... ;) ...

randlemanboater

01-24-2007 11:56 AM

Re: VRO

My ex-brother in law (my wife's sisters second of four so far) could tell you what brand of oil you were running from the smell of the exhaust, a true machine head.

I like both, but since I have a nice 4stroke, that is my preference.

bassarama

01-26-2007 10:58 AM

Re: VRO

I don’t know how to do it, but I’ve decided to disconnect my VRO. Is there a special part to be applied on the motor or something to be removed other then the tank, hose etc?

Thanks

Joe

Blue_Runner

01-26-2007 12:29 PM

Re: VRO

Pretty sure its 2 things, the electrical plug and capping off the oil intake line.

I did it one time, but I'd rather let someone else tell you than for me to tell you wrong ;)

THEFERMANATOR

01-26-2007 02:53 PM

Re: VRO

If it's a JOHNNY-RUDE, then you unplug the harness from the VRO pump and cap off the oil line(the small inlet on the small side of the pump). Many people just put a bolt in the hose to block it off, or you can go to a dealer and they sell a special heavy rubber boot to cap it off. And make certain to pre-mix your oil from then on. I also like to make sure that the pre-mix is what's in the bowls as well before starting. If you disconnect it and put pre-mix in the tank, you could still have plain gas in your lines and filter. So I would drain your bowls and filters and pump tyhe pre-mix through those as well.

Skools Out

01-26-2007 11:30 PM

Re: VRO

here's a link to old *disconnect with pics

http://www.wellcraftv20.com/cgi-bin/...00;start=16#16

Quote:

Originally Posted by Skools Out

ok here are several different motors pumps i have, not sure which pump you have a new 4 wire replacement or the older 3 wire style.

This is the later style with 4 wires on my 92 Johnson 225
http://i8.photobucket.com/albums/a46...ROPUMP-002.jpg

Here's a 1987 like yours with the oil line still hooked up on the stand.
http://i8.photobucket.com/albums/a46...ROPUMP-003.jpg

This is the plug you unplg to turn off the oil pump if your alarm will let you on some models the buzzer will go off if so just leave it hooked up and cap it off anyway.
http://i8.photobucket.com/albums/a46...ROPUMP-004.jpg

here's the oil line going into your oil pump seen here on my 1987 Johnson 225
http://i8.photobucket.com/albums/a46...ROPUMP-005.jpg

Here's the oil line capped on the oil pump of a 3 wire pump on my 1990 Evinrude 140
http://i8.photobucket.com/albums/a46...ROPUMP-006.jpg

Pointing to the fuel and oil line nipples see oil one is capped. must be done or it will suck some air and run lean. Can just cut short piece of hose and push a bolt in to it and run a tie wrap around it to stop air too.
http://i8.photobucket.com/albums/a46...ROPUMP-007.jpg

Then just take out the oil tank and the lines. Sell it on ebay for some other un expecting person to use lol.

randlemanboater

01-27-2007 12:37 AM

Re: VRO

There are people out there who pay good money for this kind of technical support and only get half as good of info as we get here.

macojoe

01-27-2007 02:49 AM

Re: VRO

I know mine isn't working, but I think the hose is still conected?? I am going to have to look again!

Just have to cap off the suck side of the pump?

This is a new to me motor, I know the wires are disconnected, but I am sure I saw that little filter when I was in there.

Thanks Skools!!

Skools Out

01-27-2007 02:55 AM

Re: VRO

yeah cap the oil inlet so it can't suck air and lean out which will lead to bad motor

reelapeelin

01-27-2007 09:54 AM

Re: VRO

Bad motor?...MJ's had enough of those ... :P ...

macojoe

01-27-2007 07:47 PM

Re: VRO

You can say that again!!

reelapeelin

01-27-2007 09:25 PM

Re: VRO

Bad motor?...MJ's had enough of those... :P ...

bassarama

01-29-2007 10:14 AM

Re: VRO

Great help guys!

You're the best ;)

Thank you.

Joe

spareparts

01-29-2007 10:58 AM

Re: VRO

i tried to cap off the oil side of the pump on my 120 looper, but thefuel side started acting up, it would start clicking and leaking fuewl out of the oil flow sensor, rather than screw with it any more, i found an old 235 fuel pump adn taped the block pressure hole for a pipe nipple and installed it to replace the fuelpump/oil pump set up i had, if nothing else, it cleaned up that side of the engine.

THEFERMANATOR

01-29-2007 01:27 PM

Re: VRO

Quote:

Originally Posted by spareparts

This is a LOOPER NO NO!!! The looper engines don't produce the crankcase pressure that cross-flows do and they WILL lean out under WOT runs. The cross-flow pumps put out around 4 psi whereas the looper pumps(the VRO pumps) put out 6 psi. I tried this with my 140 looper one time just to see, and ANYTHING over 1/2 throttle dropped the fuel pressure below 2 psi. If it's been working for you, you are way beyond lucky. The 120 doesn't use the fuel that a 140 does, but it will eventually lean it out if you run it long enough.

spareparts

01-29-2007 05:13 PM

Re: VRO

i was worried about lean out so i ran a pressure guage before I finished the install, never got below 2.5 psi at wot, and I held it there for a long time.

THEFERMANATOR

01-29-2007 09:19 PM

Re: VRO

Quote:

Originally Posted by spareparts

i was worried about lean out so i ran a pressure guage before I finished the install, never got below 2.5 psi at wot, and I held it there for a long time.

According to my manual, minumum pressure is 4. The 120's must not use no where near as much fuel as the 140's, mine lumitted with an old style pump. I know at 2 mine started surging. My VRO pump won't go under 4 psi and that is at slow speeds, at load it holds 5-6.

Skools Out

01-29-2007 10:06 PM

Re: VRO

the VRO pumps are all alike the loopers all use same part number. the v8 loopers use 2 of the VRO pumps.

The first were PN. 174566 for all loopers 1987 & 1988

Then 1989 new VRO2 came out PN. 174879 all loopers 1989 & 1990

Then new revised VRO2 in late 1991 PN. 175109 for all loopers 1991 to 1993

Then 1994 the newest VRO Pro PN. 435953

The newest Part number will fit all the VRO2 will fit all as well. the VRO 2 are the better VRO pumps.

Airslot

01-29-2007 10:17 PM

Re: VRO

Thats what I'm talk'in 'bout. Give me a motor that needs 2 fuel pumps. Yeah baby :o

Now where did I leave that gas card ;D

Airslot

reelapeelin

01-30-2007 04:24 PM

Re: VRO

Quote:

Originally Posted by Airslot

Now where did I leave that gas card ;D

Look in the pump back at the gas station... ;) ...

Airslot

01-30-2007 09:12 PM

Re: VRO

Hey REEL, you know your living large when they deliver the gas to your boat. ;D

Airslot

reelapeelin

01-31-2007 02:11 AM

Re: VRO

Quote:

Originally Posted by Airslot

Hey REEL, you know your living large when they deliver the gas to your boat. ;D

Airslot

Yeah, I had to put a ''turn-around" out here for the 18-wheel tankers 8) ...Fill & Bill :o ...

Airslot

01-31-2007 04:24 PM

Re: VRO

This summer at the White Marlin Open we were at Sunset Marina one night and watched them empty 11 tanker trucks, while were there. Don't know how many came and went before and after us....

Airslot

kamikaze

01-31-2007 08:55 PM

Re: VRO

Skools:

Why do you believe the VRO2 pumps are better than the newer VRO Pro Pumps?

Kamikaze

Skools Out

01-31-2007 09:41 PM

Re: VRO

they were more reliable alot of the VRO2 and VRO Pro had 4 wires but still work with 3 wire system. the VRO2 were also rebuildable.

randlemanboater

01-31-2007 09:46 PM

Re: VRO

What years did the "pro" and "2" start?

Skools Out

02-01-2007 12:05 AM

Re: VRO

Quote:

Originally Posted by randlemanboater

What years did the "pro" and "2" start?

reelapeelin

02-01-2007 01:10 AM

Re: VRO

That rascal's got all this stuff printed on his wall up there ;D ...OMC SPECS freakin' WALLPAPER 8) ...

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