Boat
I am thinking of replacing the vro pump on my 200hp evinrude with a non oiling style pump. I have already orderd another
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Customer: I am thinking of replacing the vro pump on my 200hp evinrude with a non oiling style pump . I have already orderd another pump for a boat with a 120 hp evinrude looper outboard. would the same pump be the correct replacement for both outboards as the 120 looper uses a higher volume pump ?
Answered by oldnewenglandmarine in 15 mins 7 years ago
oldnewenglandmarine
Auto Mechanic
34,336 satisfied customers
Specialities include: Marine mechanic, Diesel Engine Repairs, Boat Body Repairs, Boat and Watercraft Repairs
Customer
I should add both outboards originally came with vro pumps.
Hello my name is ***** ***** am I speaking with?
Are your VRO pumps dead. Do they not pump at all?
Are your VRO pumps dead. Do they not pump at all?
Customer
my name is ***** ***** vro on the 200hp seems to not be able to keep up at full throttle . the engine is a 1985 model with original vro pump. after running for about 2 mins at full throttle rpms fall off slowly to around 3000 rpms and surges as if starving for fuel.
That doesn't sounds like a pump issue. If it was pump issue you would not get 2 minutes of full throttle. Have you tried running it on another fuel tank to rule out a tank issue?
Customer
first 2 mins the engine performs flawlessly . seems like the pump cant keep up with volume and as the carb bowl run low the engine falls off . have run on separate tank with new fuel lines . same results . pretty sure its the pump. I subed in the 120 looper fuel pump and couldn't maintain full power but could hold steady at 4300 rpms with no surging.
Customer
the pump that was subbed in was also a vro pump that was known to be good but off the smaller engine.
Gotcha. What you actually are going to want is 1 pump number(###) ###-####and 1(###) ###-####
Click this link - http://www.boats.net/parts/search/BRP/JOHNSON/1980/J200TXCSF/FUEL%20PUMP/parts.html On the V6 engines they used 2 low pressure pumps in tandem. These pumps are sized for V6 engines, where as the 120 pump is sized for a V4. Does that make sense?
Customer
so does that mean that the vro on the 1985 200 hp was not oem ?
Customer
the parts break down that you sent looks noting like what I have. is that the alternate or is that what I should see on my engine ?
Technically speaking there is no 1985 200. In 85 they made a 185hp and then a 235hp, but no 200. Do you have the actual model number on your engine, i'll run it and tell you what year it is.
Customer
one sec . can get the number
It's alternate. When you have a VRO engine, and you want to go to the pulse style fuel pumps, all you do is pick the same horsepower and just go back in model year to a pre-VRO engine. So if you have a 150, you go to an early 80's 150. If you have a 200, you go to an early 80's 200. If you have a 250.... You go and use the same pumps an early 80's 250 would use. Does that make sense?
Customer
200cxesm. data plate is a little worn. cant tell if there is a number before the 2.
Customer
yes makes sense .
That would be a 1990 motor, not an 85. (which is good news) But on the fuel pumps, thats all you need to do, is go back and use the same style that a 200 without a VRO would use. And they will deliver the proper amount of fuel. Did you have any further questions on the issue?
Customer
no . other than from what I described do you think I might be on the right track or should I start looking else where for problems?
If you have already used another pump and the shows an improvement that would confirm the pump. It's just weird the way you described it, as the way you described it does not sound like a pump issue. When you were running with the VRO installed, did you happen to try pumping the primer bulb to force fuel through it. Or to see if the primer was sucking flat?
Customer
thank you for the information . its been very helpful.
Customer
Yes I pumped the primer bulb. Every time I squeezed it rims increased
. Pretty sure problem is solved. Awaiting parts now. Thanks for the help
. Pretty sure problem is solved. Awaiting parts now. Thanks for the help
Customer
Rpm's
You are very welcome.
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