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Islander 2001 240 M2
- Thread starter Ron ump
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Dr Honda
Well-Known Member
There are 3 filters on your engine.
1) The metal fitting under the lift pump is a filter. It's on the port side of the engine. It's a small cube shaped device, with a fuel line, and some wires. (you will see it)
2) There is a large, "Spin on" filter on the starboard side of the engine. (looks like a car oil filter)
3) There is a screen on the bottom of the high pressure fuel pump. It's not easy to get to... so we will leave that for last.
There could also be an electrical issue... but check # 1,2 first.
1) The metal fitting under the lift pump is a filter. It's on the port side of the engine. It's a small cube shaped device, with a fuel line, and some wires. (you will see it)
2) There is a large, "Spin on" filter on the starboard side of the engine. (looks like a car oil filter)
3) There is a screen on the bottom of the high pressure fuel pump. It's not easy to get to... so we will leave that for last.
There could also be an electrical issue... but check # 1,2 first.
Most screen filters are a Coalescer Filter.
A Coalescer Filter is designed to not pass water. I do not know if the screen on our boats is a Coalescer Filter but I would think it is.
If water gets up against the filter it will block it and the engine will simply shut off.
Spin on Coalescer Filter have an advantage as the water hits the filter and will run down it as gravity sucks. You have to practically fill the spin on filter up before it stops fuel flow. Socks or screens seem to collapse when the tank has water and fail considerably faster than spin on filters.
My point is, check for water in your tank. And, if we could find out if the screen filters are Coalescer Filters it would be good to know.
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A Coalescer Filter is designed to not pass water. I do not know if the screen on our boats is a Coalescer Filter but I would think it is.
If water gets up against the filter it will block it and the engine will simply shut off.
Spin on Coalescer Filter have an advantage as the water hits the filter and will run down it as gravity sucks. You have to practically fill the spin on filter up before it stops fuel flow. Socks or screens seem to collapse when the tank has water and fail considerably faster than spin on filters.
My point is, check for water in your tank. And, if we could find out if the screen filters are Coalescer Filters it would be good to know.
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I do not have gage yet when I turn the key I get gas out of the fittings should there be about 34to36 psi
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Dr Honda
Well-Known Member
You need to check it running. Then... watch the gauge when it shuts down. If the engine stalls, and the fuel pressure stays up... then we have to look for electrical issues.
If the pressure drops, and the engine stalls... then the pump could be going bad... the regulator is going bad... or there is junk in the vapor tank.
It is a separate box in the console area. Not the neutral switch.
The good Dr can tell you about that little box. When it is working all is well. When it is not, it can cause havoc.
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The good Dr can tell you about that little box. When it is working all is well. When it is not, it can cause havoc.
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Dr Honda
Well-Known Member
Yep to what he said.
The Guardian isn't on the wiring diagram. But... it's a small black box in the helm. It's hooked to the key or lanyard via a black/yellow wire. Cut it loose... and see if that takes care of the problem. If it does... you are done. The guardian just keeps the RPM's lower in neutral and reverse.
The Guardian isn't on the wiring diagram. But... it's a small black box in the helm. It's hooked to the key or lanyard via a black/yellow wire. Cut it loose... and see if that takes care of the problem. If it does... you are done. The guardian just keeps the RPM's lower in neutral and reverse.
Thanks Doc. I couldn't recall the name of it.
Dr Honda
Well-Known Member
Great... glad to hear it.
When I did my rebuild... I removed the Throttle Guardian from my boat because that can become problematic. FYI... you can now get full throttle in reverse. It's good to have more power for maneuvering... but it's hard on the pump if you rev the engine too hard with the reverse bucket down. I normally try to keep it below 3500 RPM.
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