110hp evinrude VRO question

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flaxterra

Seaman Apprentice
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Apr 15, 2008
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I have a 89 110hp evinrude with vro. I found how to convert it to pre mix. Everything went well, ran good. the other night i noticed the fuel pump side of the vro pump was leaking fuel when trying to prime it. It looks like someone tried to epoxy it. The guy i bought it from told me it had a fuel leak. When i checked it out all i noticed was that fuel was coming out of the carbs. Stuck floats. I've been using it with no problem. Wasnt until last night i noticed when priming it that it had a leak. My question is, i read on here that you could convert it to a non vro style fuel pump. I looked at my motor and it has the screw holes and a hole for the pulse that is plugged off. Someone told me that if i looked up my motor and it offered a regular fuel pump that, that was the one i should use. I guess some commercial grade ones didnt come with vro. I am having trouble finding the right part numbers. Does anyone know how to do this or what pump i should use. Where the lines would run?? thanks for any info.
 
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TombigbeeMan

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Dec 16, 2010
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Re: 110hp evinrude VRO question

I got the same engine, same problem happened just a couple of months ago. I done the same thing you are talking about, took all of the VRO pump off, got it all out of the way. I replaced it with the one manual pump. It cost right around $100. I could have used a cheaper aftermarket one but my local dealership had this one in stock. I've heard of people saying something about using two inline, but I didn't understand how they were doing it and why..... But I just done this recently and have stored my boat. I did take it on a test run and run a half tank of fuel through it. I idled a good bit, played around and run it wide open for about 10 miles comming back to the landing. I shut it down several times to fish and it fired up fine, kept a good prime the entire time.....so I really don't see a need for 2 pumps on our engines......As far as running the fuel lines I changed all mine out from the tank out, put a new connector on the engine also, it's pretty self explanitory, you have a supply line going into the pump and an exit line from the pump to the carbs, just have to get alittle creative routing the lines, but not a problem. The pump bolts right up to the bolt holes that you were talking about just take the plug out for the pulse and bolt it up...make sure you get the gasket also, I think it's sold sepratly from the pump.......another note...everyone told me to be sure to use the see through paper fuel filter...well i'm cheatn I recon, I have a spin on water separator filter comming from my tank, then the fuel pump itself has a very fine metal screen the fuel must pass through,,,I didn't use the see through filter...hopefully when it warms up some more I'll get more running time, but it ran great the day I test run it, burned around 6-8 gallons and run approximatly 20 miles or more giving it hell.
btw, i'll post the part numbers in a min...
Bill
Fuel Pump OEM Part#438556
Gasket OEM Part# 303615
These are genuine Evinrude/Johnson Bombardia parts from dealership.
 
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levi_tsk

Ensign
Joined
Dec 26, 2010
Messages
907
Re: 110hp evinrude VRO question

why would you need 2 pumps sparkie??

my '81 140 burns 14 gph wide open and mine has that same pump the newer 110 will burn about 11 gph WOT -maybe less because its newer
why would one not be enough?
 
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flaxterra

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Apr 15, 2008
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46
Re: 110hp evinrude VRO question

GREAT INFO!!! This is exactly what i was looking for. I looked up the pump and they do offer a aftermarket one a little cheeper. Im going to get one and try it. I think the pump is for a smaller outboard but i know they use the same pump for many differant size motors. besides, anything is better then what is going on now. The question about the line was for the vacuum line going to the vro pump. its coming out of the block a little lower then where the manual pump will mount. it looks like a pcv valve on a car. do i just block it off. the manual pump has two ports. one for inlet and outlet. the old vro pump looks like it got pulse from this line coming out of the block. thanks agian guys!!
 
SparkieBoat

SparkieBoat

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Messages
3,643
Re: 110hp evinrude VRO question

you actually may be able to get away with one pump in a 115 or smaller..you need 2 pumps for sure with a V-6...you just want to make sure you are getting enough fuel at WOT or you could lean out and burn up your pistons..I am usually better safe than sorry..here is the part number for a 1976 115 fuel pump..0385784..or you could get one for a V-6 and be safer..part # 0387470..or use any aftermarket compatible..you can search part numbers here. http://www.boats.net/parts/search/BRP/EVINRUDE/1976/parts.html
 
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Dhadley

Supreme Mariner
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Feb 4, 2001
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16,978
Re: 110hp evinrude VRO question

None of the V4 crossflows need 2 pumps. The commercial V4 90* looper came with 2 old style pumps.
 
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TombigbeeMan

Cadet
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Dec 16, 2010
Messages
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Re: 110hp evinrude VRO question

Oh, I forgot about the old pulse limiter that was for the VRO,,,yep, just plug it off, I went to the local hardware store and got a small plug that fit perfectly. The worst part of the whole job was getting to the bolts that hold the little peice of square duct work to get it out of the way....easy job.
 
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flaxterra

Seaman Apprentice
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Apr 15, 2008
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Re: 110hp evinrude VRO question

Again great info. The pump just listed seems a little closer cause its for 85hp. The only thing is, it has 3 ports. The extra one must be for pulse. I do have a pulse line but i did notice that i have a place to mount a fuel pump on the side of the block with a pulse port capped off. The other pump suggested would mount in this spot and only has 2 ports so i could use the port that is plugged off for pulse. Not sure what to use but i dont want to get one that is to small and doesnt put out enough fuel. Everything i have read says that only V6 requires 2 pumps. Mine is a V4. Either way thanks again.
 
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Dhadley

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16,978
Re: 110hp evinrude VRO question

Again, your crossflow V4 only requires one old style fuel pump. You can use either the 2 or 3 line pump, they both will supply enough fuel with no problem. The best thing to do is look at any E/J parts schematic on line for a motor with your same airbox and intake and get the molded hoses. It's really pretty simple once you get all the right hoses.
 
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flaxterra

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Apr 15, 2008
Messages
46
Re: 110hp evinrude VRO question

Yeah, the fuel lines where not in question. The vacuum line going to the vro pump was. I think i got it figured out. Lots of great info thanks again. This site always comes through with the hard to find info thats not in a repair manual. I will let you guys know how it turns out.
 
fshrgy99

fshrgy99

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Jun 4, 2010
Messages
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Re: 110hp evinrude VRO question

I am troubleshooting the fuel side of my 89 140 vro. It has not run without choking since I disconnected the oil side of my vro. If the replacement fuel pump used to run premix only has an inlet and an outlet (and the vacuum line to pulse limiter is blocked off) what drives the fuel pump> Is it electric? Just want to make sure I get the right part. Thanks for 'splainin'
lucy
 
fshrgy99

fshrgy99

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Jun 4, 2010
Messages
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Re: 110hp evinrude VRO question

kennyfam, I want your story for my motor too! I am ready to order a pump and have seen some with input and output and a 3rd for pulse fitting from pulse limiter. Others recommend a pump that appears to have only an input and an output and they say to block the pulse line. How is that pump supposed to work? Have to order on net and don't want an unusable pump in the shed for the rest of my life
Thanks
.
 
kenmyfam

kenmyfam

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Aug 10, 2006
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Re: 110hp evinrude VRO question

fshrgy99 said:
kennyfam, I want your story for my motor too! I am ready to order a pump and have seen some with input and output and a 3rd for pulse fitting from pulse limiter. Others recommend a pump that appears to have only an input and an output and they say to block the pulse line. How is that pump supposed to work? Have to order on net and don't want an unusable pump in the shed for the rest of my life
Thanks
.
Click to expand...

Well I used the original pulse line. Simple as that. Didn't feel the urge to block off something that was sitting there and available for the purpose I needed.
With my motor being a looper I needed to check the pump output for volume before continuing on with a single pump. I am more than satisfied with the output I am getting from my pump but if I change it again the output will be the first thing checked before moving on.
 
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