VRO fail... I think we have a problem...

[Piece715]

Ok... I went out and tried to test fire the motor yesterday. When pumping the primer bulb i noticed that there is a gas leak in the engine. The leak is at the seam of the housing of the VRO pump We had the motor running for about 10 sec before it died.. Started again and prob 5-8 sec run and can't get it started again. The primer bulb doesn't stay hard so I'm guessing where that leak is happening is putting too much air into the system and the motor is starving itself. Take a look at the vid and see if this is something i can fix.

I have posted this in my restore thread and in a thread I have on a mystery wire I had spliced into the hot horn sensor wire (tan) coming from red throttle plug

I have a found a good link to VRO history: The VRO Story


My motor 1985 Evinrude 50hp long shaft (E50BELCOB) has been switched to premixed fuel (50:1) prior to me owning her. In the picture below you can see the green plug where the oil inlet has been plugged. Also notice in the picture that the housing of the VRO pump doesn't line up. Is this typical? or did the shop that worked on my motor last mess it up... (like the other things i have come to find out i was charged for and never performed)



I have read that the oil side of these pumps cannot be rebuilt but the fuel side can be. The main problem with rebuilding the pump is that it usually stems from the housing being warped but to me it looks as if its just flat out missing the gasket between the two housings. Does anyone have any experience with this and can help me out... Thanks in advance! Right now this is the only thing from keeping me from my initial splash after 3 years worth of work!

 

[seahorse5]

Re: VRO fail... I think we have a problem...

That is the old original pump that normally self destructed from alcohol in the fuel. Either install a new "VRO" and all the required updates and wiring, or refit an older pulse pump and premix the fuel.

 

[AEROCOOK]

Re: VRO fail... I think we have a problem...

That is the old original pump that normally self destructed from alcohol in the fuel. Either install a new "VRO" and all the required updates and wiring, or refit an older pulse pump and premix the fuel.

X2 on the pulse pump and premix idea. Cheaper, safer and easier.

 

[Piece715]

Re: VRO fail... I think we have a problem...

Thanks for the advice! While I shop around for a pulse pump would it work as a temp fix to use liquid gasket to seal the pump and use the motor? Any suggestions on best place to pick up a pulse pump for my motor evinrude e50belcob?

 

[Daviet]

Re: VRO fail... I think we have a problem...

I don't think I would take a chance on sealing the old pump, could fail and cause major damage.
Below is a site with the part numbers for what you will need to convert to a premix pump, use the numbers and see if you can find the parts you need, maybe at a cheaper price.
http://www.ishopmarine.com/ishop/js...CatFilter=BRP&eCatSupFldr=supplier-100-005-EJ

 

[Piece715]

Re: VRO fail... I think we have a problem...

I don't think I would take a chance on sealing the old pump, could fail and cause major damage.
Below is a site with the part numbers for what you will need to convert to a premix pump, use the numbers and see if you can find the parts you need, maybe at a cheaper price.
http://www.ishopmarine.com/ishop/js...CatFilter=BRP&eCatSupFldr=supplier-100-005-EJ

Thanks a bunch! Think I'll need new hoses or should the old ones work fine? Will it be oriented the same?

 

[Piece715]

Re: VRO fail... I think we have a problem...

Just ordered the fuel pump assembly; Evinrude part # 0395713. It was $82 with shipping. Not too shabby... Anyone have an idea on the hoses?

 

[Daviet]

Re: VRO fail... I think we have a problem...

By the model number you listed, the site in post #5 shows the pump for that engine along with the hoses.

 

[mark1961]

Re: VRO fail... I think we have a problem...

Just ordered the fuel pump assembly; Evinrude part # 0395713. It was $82 with shipping. Not too shabby... Anyone have an idea on the hoses?

Wish i'd known this was all you wanted to do earlier.....could have had you on the water by now.

 

[Piece715]

Re: VRO fail... I think we have a problem...

Wish i'd known this was all you wanted to do earlier.....could have had you on the water by now.

Its all good Mark... I wasn't exactly sure what i needed to do... Just didn't want to spend 400 on a new VRO when i dont even use the oil side. I was hoping for a temp fix but definitely don't want a major failure so replacing the fuel pump/pulse pump seems like the cheapest and most reliable way.

 

[Piece715]

Re: VRO fail... I think we have a problem...

By the model number you listed, the site in post #5 shows the pump for that engine along with the hoses.

I was just curious about whether or not the current hoses on the motor will work with the new fuel pump. Thank you very much for the link much appreciated. I ended up ordering form **********. They seem to be the cheapest for the old parts. That's where i ordered my replacement bolt for trim tab, inner exhaust gasket, and retaining trunnion for the throttle cables from this thread 1985 E50BELCOB Outboard 50 hp - Unidentified wire and found retaining Trunnion

EDIT: The order for the the fuel assembly was canceled... needed to order more parts and would have to piece it together but tryin to find the full pump... see next post

 

[Piece715]

Re: VRO fail... I think we have a problem...

Can someone follow me here. I think I may know what part I may need just need confirmation. The part i need is BRP 0395713 but i want to replace the whole pump just not the assembly. Well that part was replaced by BRP-0438556 which I feel is just the fuel pump assembly as well. According to what I can find the Sierra 18-7352 is an aftermarket replacement for BRP-0438556. All the pictures i found of it are of the whole pump.... Is this correct or is this just gonna be just the assembly as well? Will this fit my motor?

 

[64osby]

Re: VRO fail... I think we have a problem...

http://www.iboats.com/Fuel-Pump-Sierra/dm/view_id.174141?cm_mmc=Google+Shopping-_-Engine%20Parts-_-Sierra-_-NA

Looks right.

 

[Piece715]

Re: VRO fail... I think we have a problem...

http://www.iboats.com/Fuel-Pump-Sierra/dm/view_id.174141?cm_mmc=Google+Shopping-_-Engine%20Parts-_-Sierra-_-NA

Looks right.

Ok thanks... so this would be the whole pump? and also it states for non VRO but my motor has a VRO. So when installing am I completely ridding the motor of the VRO and just replacing with this pump?

 

[busted-bayliner]

Re: VRO fail... I think we have a problem...

Ok thanks... so this would be the whole pump? and also it states for non VRO but my motor has a VRO. So when installing am I completely ridding the motor of the VRO and just replacing with this pump?

yes you are an then its up to you to pre mix

 

[Piece715]

Re: VRO fail... I think we have a problem...

Well guys i tried... found the part i need but all the next day shipping states the estimated delivery date the earliest to be Tuesday... hell amazon says next day shipping wont get here till next Thursday. Even iboats wont get here till Tuesday and thats overnight air for $46... so lets shoot for next weekend i guess

 

[Piece715]

Re: VRO fail... I think we have a problem...

Imuss did some work last night and posted some info in my restore thread.

Piece, I've been through all this with my old VRO 90. The easiest pump to use is an OMC 0385784, which may well be the same as the pump you have found. These 3 hose pumps were used on a LOT of OMC pre VRO engines. The pump assembly in the description is the entire pump, sells for around $80 which is cheaper than the VRO rebuild kit, or the fuel side only VRO rebuild kit that is available. You hook the pulse hose to one fitting, the line from the tank to another and the line to the carb to the output.

The key to all this is that you get the 3 hose pump, pulse line to one hose, fuel line from tank to another, fuel line from pump to carb on another.

The pump I listed is the stock number for a 1972 50 hp. You have to go back to before they mounted them on the block. Find a dealer or call Sierra and tell them what you need. The pump has adequate output for OMC motors from 20 to 140 HP. I am running this pump on my 1976 55 Johnny and it works fine. I had one on my 1985 90 when I sold it.

I'm gonna run the numbers you put up through another site and see what they look like.

Piece, if you have to use the pulse hose the sierra you list will not work, it is designed to screw to the side of the block. If you can bolt it to the block it will be OK. I ran the number I gave and it is superceded about 4 times to a new number.

0385784
Part replaced by 0395712
Unavailable
0395712
Part replaced by 0398385
Unavailable
0398385
Part replaced by 0433390
Unavailable
0433390
Part replaced by 0438559

I will stop and look at the current Sierra catalog and get the current number for you tomorrow, sorry I didn't see this sooner. If you have a boat guy around you can stop and see if he has the three hose housing and buy a rebuild kit for it, they are all the same as the regular pump that bolts to the block, they just have holes in different places. I'm sorry bro, what is the model and hp of your motor, I forget.

http://forums.iboats.com/showthread.php?t=405585

I found this old thread with a response from tashasdaddy (RIP), be assured that he knew of what he spoke.

Pulse hose use the BRP 0438559 number, block mount your sierra is good.

I will still check on the sierra number tomorrow, I'd really like to see a pic of the BRP pump, I could tell you if it will work.


Edit:
I went to the boats . net sight and entered the 559 number then clicked on one of the motors it is used on and there is the blow up. Look at the lower illustration. This is a 3 hose pump and would be a plug and play replacement for your VRO pump. Iboats won't allow a link to that sight (I don't blame them) or I'd post the link. The pump assembly is the entire pump. Since this pump was used well into the 90's a Johnny/Rude dealer would probably have one $$$$$$$$$$$$$ if you have to get on the water this weekend.


Second edit: I am sure you are premixing already but you will have to forever after you install this pump. I also looked all over here at iboats and can't find the 559 pump in that or any of it's previous numbers. I guess they don't carry it ??? which doesn't seem right considering all the motors it is used on.

Wow! You did some work Imuss! So its sounding like i need to go with the BRP 438559 pump. Sounds like the easiest application; just remove the VRO and attach the new pump. Ill call around today to see if anyone stocks that pump. It'd be great to be on the water this weekend. Im willing to eat the extra 20-30 bucks if it means fun in the sun on memorial day!

EDIT: Oh and my motor is 1985 Evinrude 50 model E50BLECOB

 

[Piece715]

Re: VRO fail... I think we have a problem...

Went and picked up the fuel pump at lunch... $125 with tax not too shabby for a dealer and hopefully to be on water this holiday weekend... I explained to the guy that was helping me what I was doing and he stated this should work fine for that... Although he didn't know the motor but anyways... I'm gonna give it a best effort but here is the pics of the pump



The pump came with no instructions... I'm guessing the black nipple is the inlet and then the two brass are the outlets. One to crankcase and then the other split going to each carb... That sound right?