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Yamaha Outboard
- Thread starter JJinSC
- Start date
JJinSC
Well-Known Member
Ok, So when I tackle this I want to soak it in something like PB blaster for 24 hours before I just try to break it loose.
I really don't want to leave fuel in the tank that long to become old. SHould I pump it out or will it hurt anything to just burn the gas out of the tank as long as I don't try and it any high RPMs?
I really don't want to leave fuel in the tank that long to become old. SHould I pump it out or will it hurt anything to just burn the gas out of the tank as long as I don't try and it any high RPMs?
JJinSC
Well-Known Member
Ok, so I'll try and soak it with PB blaster for at least 24 hours before I break it loose.
I really don't want to leave fuel in the tank that long (fall or winter project) to become old so should I pump it out or will it hurt anything to continue to run the motor off of the hull tank as long as I don't try and hit high RPMs?
I really don't want to leave fuel in the tank that long (fall or winter project) to become old so should I pump it out or will it hurt anything to continue to run the motor off of the hull tank as long as I don't try and hit high RPMs?
JJinSC
Well-Known Member
Well, I wanted to repost in case someone did not see my question about pbblaster harming the poly tank.
Also,. today, I decided to open up the portal under the center console again and clean some of that corrosion up and to start spraying some penetrating lube on that pickup so that I can try and replace it. I started wiggling the hose (barely) to see how far the fuel line was actually pushed up on the barb at the tank. When I did I heard a click and pressure start relieving from the tank. So I pulled on the hose and here is what happened...
So this has definitely been my fuel delivery issue.
I think it was only a wake or two from stranding us. Good thing I found it now and keep an external tank in. I have been running the hull tank when going slow trying to burn all of the fuel I can out of the tank. So, I take a piece of fuel line and use the old spark plug trick to plug up the tank to keep fumes from gathering in the hull until I get this fixed. I sprayed penetrating lube and I am letting it soak. I will probably do this for a couple weeks before trying to break the pickup elbow loose.
Meanwhile, I went to to disconnect the hull tank hose from the engine so I could plug up the external tank to take a ride with the wife and this happened.
Should this come apart like this? I did the best I could to put the little o-ring back where it should be, reassemble and push back in and it clicked in when I did. I cranked the motor and went on about an hour ride and all was well. Do you think this is alright? Should it have come apart like that?
Also,. today, I decided to open up the portal under the center console again and clean some of that corrosion up and to start spraying some penetrating lube on that pickup so that I can try and replace it. I started wiggling the hose (barely) to see how far the fuel line was actually pushed up on the barb at the tank. When I did I heard a click and pressure start relieving from the tank. So I pulled on the hose and here is what happened...
So this has definitely been my fuel delivery issue.
I think it was only a wake or two from stranding us. Good thing I found it now and keep an external tank in. I have been running the hull tank when going slow trying to burn all of the fuel I can out of the tank. So, I take a piece of fuel line and use the old spark plug trick to plug up the tank to keep fumes from gathering in the hull until I get this fixed. I sprayed penetrating lube and I am letting it soak. I will probably do this for a couple weeks before trying to break the pickup elbow loose.
Meanwhile, I went to to disconnect the hull tank hose from the engine so I could plug up the external tank to take a ride with the wife and this happened.
Should this come apart like this? I did the best I could to put the little o-ring back where it should be, reassemble and push back in and it clicked in when I did. I cranked the motor and went on about an hour ride and all was well. Do you think this is alright? Should it have come apart like that?
JJinSC
Well-Known Member
Update: I replaced the check valve on the front of the motor where the fuel line attaches. I replaced the fuel line from the rear water separator/filter. New fuel line from the back slide right in place as I pulled it through the conduit with the old hose. Received the part (replacement pickup) today and removed the old one....
Here is the old pickup with the broken anti-syphon valve/barb...
Then I used some permatex sealant on the threads and turned it down to what felt good and snug and lined it up with where it was before. Used about the same amount of threads that I unthreaded the old one. Used two new stainless clamps in opposing directions....
I'm ready to put her back in the water tomorrow if the rain will hold off long enough.
Here is the old pickup with the broken anti-syphon valve/barb...
Then I used some permatex sealant on the threads and turned it down to what felt good and snug and lined it up with where it was before. Used about the same amount of threads that I unthreaded the old one. Used two new stainless clamps in opposing directions....
I'm ready to put her back in the water tomorrow if the rain will hold off long enough.
JJinSC
Well-Known Member
Ok, Calling all logical thinkers out there. I have a mystery that has completely baffled me. After completing the project described above, I now have an issue filling my 31 gallon hull tank in my Keywest 1720CC boat. I have never had any issues filling before and the last time I filled it before this project, it took the fuel wide open from the fuel pump at the marina. Now after this project, and I do not know why because nothing I did during this project should be anyway related to fuel filling, I cannot pour fuel into my tank very fast. It takes me 20 minutes to put 6 gallons in. Now before everyone says, "your vent is clogged" let me tell you what I have done.
I have removed the vent cap from the vent to make sure it was not clogged. It was clean and clear. I removed the vent hose from the tank itself and tried pouring fuel in while the hose vent hose was off. Same thing. Just to be sure, I blew air through the vent hose while it was loose from the tank. It was wide open and clear. The vent hose and the fill hose is molded into the hull of the boat (with foam) and it only sits loose on top of the tank. Therefore, I cannot see this as being a crimp or bow/sag in the hose. This leaves a problem with the inside of the fill hose. Maybe an obstruction, but from what?? I cannot for the life of me figure what could be causing this. Anyone have any ideas on this???
I have removed the vent cap from the vent to make sure it was not clogged. It was clean and clear. I removed the vent hose from the tank itself and tried pouring fuel in while the hose vent hose was off. Same thing. Just to be sure, I blew air through the vent hose while it was loose from the tank. It was wide open and clear. The vent hose and the fill hose is molded into the hull of the boat (with foam) and it only sits loose on top of the tank. Therefore, I cannot see this as being a crimp or bow/sag in the hose. This leaves a problem with the inside of the fill hose. Maybe an obstruction, but from what?? I cannot for the life of me figure what could be causing this. Anyone have any ideas on this???
Dr Honda
Well-Known Member
If someone else really topped of their tank, before you got there... the recovery hose could have been full of fuel, and you just got the shit end of the deal. I wouldn't worry until it happens a second time.
Did you try to re-position the fill nozzle? I know with one of my toys, I have to turn the pump nozzle upsides-down to get it to fill. (fuel tries to come up the fill tube)
Did you try to re-position the fill nozzle? I know with one of my toys, I have to turn the pump nozzle upsides-down to get it to fill. (fuel tries to come up the fill tube)
JJinSC
Well-Known Member
Yes, unfortunately, it happened twice this weekend at the same marina. But, I had already noticed it when trying to fill from my 6 gallon containers which is the way I mostly fill the boat.
I called Keywest boats and one of their technicians says that they have seen a few issues with the ethanol causing the inside of the fill hoses to separate and blister which causes obvious obstructions. I just find it fascinating that if this is the cause that it happened so coincidentally when I worked this project and during this project I found no obvious ethanol damage to either the fuel supply line to the engine (which I replaced anyways) and the vent hose. Plus as far down as I can see with a flashlight from the fill cap is clean as a whistle. Can anyone think of what to try next or how I can see if this is actually the problem? Changing that fill hose is going to be a major job which will probably call for removing the console and cutting the floor.
