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What is this Cooling part on a 2000 BF130A

J

JustCasting

Member
2000 Honda BF 130A.

On the back of my Fuel Pump I was surprised to find water cooling hoses attached. A hose comes from engine to black box on fuel pump and then to a tee that goes to pea stream port and back of engine.

the plastic nub the hose hooks to broke off.

Here is a Link to a Photo:
http://i762.photobucket.com/albums/xx266/JustCasting/IMG_0612.gif


Is this a part a Honda Dealer can order or do I need a whole new fuel pump as it comes on it?


Anybody know why Cooling hoses are on the back of a Fuel Pump?
Would this Cause the Alarm to sound on the engine for Over Heat?


Troy
 
Last edited:
So I sent the Photo to the Honda Dealer and he identified the part as the VSP Fuel Water Jacket.
He ordered me a new one should get it Friday.

He said the VS Used Water to cool the Fuel.

Hopefully fixing this cracked house will restore water pressure to my cooling system.
 
I am not so sure that it will fix your overheat problem.

Check your thermostat housing and see if your thermostat is stuck closed or clogged with corrosion, etc.

Also, it is possible that the bypass is not opening due to corrosion. It dumps out more water at high speed to keep the engine at temperature. See parts 1 and 5 http://www.boats.net/parts/search/Honda/Outboard Engine/2000/BF130AY LA/THERMOSTAT/parts.html
Part 1 is just a piece of plastic that is held into #5 grommet by the spring until the water pressure increases during high rpms.

Of course, make sure you have a good impeller/water pump installed.

Mike
 
Thank You HondaDude,

As Part of m Spring Tune-up I just replaced on Both Engines:


Oil & Filter
Plugs
Thermostat

Cleaned What ever the Plug/Spring that is attached to the Flush Hose(Shown in Photo)
http://i762.photobucket.com/albums/xx266/JustCasting/SideofEngine.jpg

Replaced all Lower Unit Seals
Replaced Water Pump Full Kits

I was testing the engine after all this when the Alarm Sounded after about 5 mins running at 2.5K RPM.
I had the Engine Lower Unit in a Very Large Garbage Can with the water intake covered by 3 FT of Water and 2 Water Hoses running into it.
Water was over Flowing the top of the Can the whole time.

Engine was not Peeing so I was trying to unclog the tube with wire when the alarm sounded an about 30 seconds later the engine stalled.

What I have done to Debug:
I took the Thermostat Out and started the motor with the Therm Cover off for 10 Seconds and Water Shot Up strong so Water Pump is sending water to Engine. I re-installed Thermostat and cover.

Started Engine and still not Peeing so disconnected hose and noticed the water coming from behind the VSP/Fuel Pump shut engine to research more and found Cracked hose and stopped figuring I found the issue.

I double checked the Oil when the engine stalled and it was fine and not over filled.

I am going to run the Hose on the Flush Port today for say 30 Mins.

Is there any other Hose or Ports I should look at and Unclog?
 
Re: What is this Cooling part on a 2000 BF130A - More Photos

Yes, the Full Kit with Housing, Impeller, and all Rubber Gaskets on the Water Pump and Lower Unit Seals also.

I took some photos and a Video of the Key, Lights, and Gauges while running.

Photo of Lower unit in Garbage can with Water
http://i762.photobucket.com/albums/xx266/JustCasting/FullGarbageCan.jpg
Both the intakes and Impeller are full Submerged

Test of the Water Pump. Based on Water Pressure on all these I think we can rule out the water pump.

Photo of Water Pressure from Impeller at 2000 RPM out of Thermostat Port - Uncovered
http://i762.photobucket.com/albums/xx266/JustCasting/WaterPresureTopofHead.jpg

Photo of Water Pressure at Port where Water Pressure Hose Hooks Up
http://i762.photobucket.com/albums/xx266/JustCasting/WaterPressureHose.jpg

Photo of Water Pressure Gauge at 2500 RPM
http://i762.photobucket.com/albums/xx266/JustCasting/WaterPresureGauge.jpg


Video of Key, Lights, and Alarm at Startup.
http://vid762.photobucket.com/albums/xx266/JustCasting/VideoOfLightsGagues.mp4

Seams like all Lights Cycle Thru properly.
Also seams like Oil Pressure is Fine, a little over 3/4 on Dip Stick.

With Thermo Back In and Cold I noticed water coming out of Where the Flush Port is.
http://i762.photobucket.com/albums/xx266/JustCasting/Water Coming out Back.jpg
Is this Normal?
I am assuming that is due to thermo being closed.
I just never noticed this before.

Should get the replacement VSP water jacket tomorrow I will then try running the engine again longer and see if the Alarm Sounds.

Should the Engine Pee on this model even when cold and thermo is closed?

Troy
 
thermo2.jpgthermo.jpg
The whizzer on most engines indicates water is moving through the block.
The plug /spring is a pressure relief valve that lets excessive water out.
If you had much corrosion there??? Then the rest of the motor might be full of crud?
Any pics of the plug before it was cleaned?
Any crud in the hole?

Did any of the parts look like the pics I posted?
 
Hey Jerry,

I put over 200 Hrs one the Boat last year and the boat never ran hot.
The engines idle and accelerate smooth all year.

There was some crud on the Relive Valve but nowhere like that.

I am hoping the issue is just related to the Broken Water line fitting on the VSP See Photo: http://i762.photobucket.com/albums/xx266/JustCasting/BrokenPlasticHose.gif

I think after I fit the broken Water fitting tomorrow when the part comes in tomorrow, I am going to Flush the system with 3/4 Gallons of White Vinegar.

This will help Dissolve any Calcium and Salt and rust.

Hopefully this will clear up the alarm issue.

I was hoping to Fish this weekend.
 
Re: What is this Cooling part on a 2000 BF130A - More Photos

With Thermo Back In and Cold I noticed water coming out of Where the Flush Port is.
http://i762.photobucket.com/albums/x...out Back.jpg
Is this Normal?
I am assuming that is due to thermo being closed.
I just never noticed this before.

Water should not be coming out of the flush port and that is most likely your problem.
Part# 9 Flush Port Relief Valve is not shutting off and is dumping water http://www.boats.net/parts/search/H...000/BF130AY XA/CYLINDER HEAD COVER/parts.html

Bob
 
So looking at the diagram, I am assuming the spring should be closing the plastic valve when the water is being delivered by the water pump and only open when water is coming in thru the flush port.


I will take a better look at this tommorrow, maybe the housing needs cleaning or the spring is old and needs replacing. So if the thermo is closed where does the water go is there anouther pressure valve I should look at to ensure it is not clogged?
 
Water should not be coming out of the flush port. The small plastic piece is not seating correctly on the rubber grommet. Over time, the grommet gets hard and the plastic gets deformed. Either can mess up the seal.

You said you cleaned the relief valve. If the flush port valve the one you cleaned or did you remove the long narrow water passage jacket under the thermostat? It is a pain to remove and the bolts may not all come out. In fact the bottom one or two can not be removed all the way and have to stay with the cover as it is removed.

Before you do all that, there is one other thing to consider.

Running it in a tub is ok at lower speeds. However, when you increase the rpms, you are increasing the exhaust bubbles in the water and the impeller sucks in not only water but also the extra air bubbles. The higher the rpms the larger the bubbles. That means that there is less water in the cooling system and it has a lot of air....which does not have good cooling properties for that engine. Thus...it will overheat.

Have you checked for overheat, with it on the water? If not, I highly recommend it after you take care of the vapor separator cooler, the pisser and the flush port leakage.

You just may be chasing a non existent problem....

Mike
 
So after replacing the VSP water jacket the motor weezer looked strong.

i took the boat to the Hudson last nice and ran it for 2 HR straight and engines ran strong. Unfortunately a couple of new issues arouse so I am starting a new Thead.

thank you for help.
 
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