AIDY
Well-Known Member
Anyone know how the fuel tank solenoid works on my boat ?
The engine is a Volvo Penta 2040
TIA
The engine is a Volvo Penta 2040
TIA
Fuel Tank Solinoid (Volvo Penta)
- Thread starter AIDY
- Start date
AIDY
Well-Known Member
Bump ! /forums/images/graemlins/grin.gif
VicS
Well-Known Member
There is no mention of a fuel tank solenoid in the engine workshop manual.
What is it? A solenoid operated valve on the fuel draw off from the tank?
Basically a solenoid is just a coil. When the coil is energised the device on which the coil is fitted operates. If that is a valve then the valve opens, but closes again when the coil is de-energised.
If that's what you've got and power is fed to it via the keyswitch then it automatically turns the fuel supply on and off when you turn the keyswitch on and off. Alternatively you have a separate switch somewhere for it. Switching it off would cut the fuel supply and stop the engine
In the absence of any info that's my best and only guess. Any help? Why are you asking?
What is it? A solenoid operated valve on the fuel draw off from the tank?
Basically a solenoid is just a coil. When the coil is energised the device on which the coil is fitted operates. If that is a valve then the valve opens, but closes again when the coil is de-energised.
If that's what you've got and power is fed to it via the keyswitch then it automatically turns the fuel supply on and off when you turn the keyswitch on and off. Alternatively you have a separate switch somewhere for it. Switching it off would cut the fuel supply and stop the engine
In the absence of any info that's my best and only guess. Any help? Why are you asking?
earlybird
Well-Known Member
This post has me puzzled. Might it be referring to the fuel <u> shut off</u> solenoid? If it does, then its function is to stop the engine.
duncanmack
Well-Known Member
Aidy,
Is this fuel solenoid perchance screwed into the injector pump?
Is this fuel solenoid perchance screwed into the injector pump?
VicS
Well-Known Member
[ QUOTE ]
Is this fuel solenoid perchance screwed into the injector pump
[/ QUOTE ] I can see no mention of that in the Workshop manual
I therefore assumed it has a mechanical stop mechanism although I see cannot see any reference to that either! I have not looked at the owners manual, I'll leave Aidy to do that.
Always possible that a solenoid valve has been added at sometime or another. It seems a reasonable idea to have a remotely (and automatically) operated shutoff valve on the tank outlet in addition to a mechanical stop system.
Is this fuel solenoid perchance screwed into the injector pump
[/ QUOTE ] I can see no mention of that in the Workshop manual
I therefore assumed it has a mechanical stop mechanism although I see cannot see any reference to that either! I have not looked at the owners manual, I'll leave Aidy to do that.
Always possible that a solenoid valve has been added at sometime or another. It seems a reasonable idea to have a remotely (and automatically) operated shutoff valve on the tank outlet in addition to a mechanical stop system.
AIDY
Well-Known Member
Thanks for the replies. it's a little black box connected to the fuel tank, nowhere near the engine. There is no mention in the VP manual but the owners manual states it's a fuel shut off valve.
The reason i ask is after some winter maintenance of changing filters etc..... and the removing of the timing gear housing to change a warn seal. I have been having problems to prime the fuel system (as usual). I reverted to try and suck some fuel up from the diesel tank which obviosly by passes this solinoid (black box). I did'nt manage to suck any fuel through. hence the question about the function of this black box and how should i check it's working or not.
The reason i ask is after some winter maintenance of changing filters etc..... and the removing of the timing gear housing to change a warn seal. I have been having problems to prime the fuel system (as usual). I reverted to try and suck some fuel up from the diesel tank which obviosly by passes this solinoid (black box). I did'nt manage to suck any fuel through. hence the question about the function of this black box and how should i check it's working or not.
VicS
Well-Known Member
[ QUOTE ]
which obviosly by passes this solinoid (black box)
[/ QUOTE ] I dont understand you there.
If it is what I and one or two others think, namely a solenoid operated valve in the fuel line, it will be, well, in the fuel line. It will be obvious that it is an electrical gubbins because it will have a pair if wires going to it (Although I suppose it is possible for the negative connection to be via the tank or the pipework, but I hope not) and it will not be possible to suck anything through it unless it is energised! Not a question of anything bypassing anything else.
If the manual says it's a fuel shut off valve then that is what it is and before you can prime and bleed the system you will have to energise it. That I guess will mean turning the "Ignition" keyswitch on.
which obviosly by passes this solinoid (black box)
[/ QUOTE ] I dont understand you there.
If it is what I and one or two others think, namely a solenoid operated valve in the fuel line, it will be, well, in the fuel line. It will be obvious that it is an electrical gubbins because it will have a pair if wires going to it (Although I suppose it is possible for the negative connection to be via the tank or the pipework, but I hope not) and it will not be possible to suck anything through it unless it is energised! Not a question of anything bypassing anything else.
If the manual says it's a fuel shut off valve then that is what it is and before you can prime and bleed the system you will have to energise it. That I guess will mean turning the "Ignition" keyswitch on.
earlybird
Well-Known Member
How does sucking up fuel from the diesel tank obviously by-pass this solenoid? I presume this black box has wires to it. It will require power (12v.) to open it, and keep it open, presumably by switching on the engine "ignition" or similar. When you do this can you hear/feel a click from the black box? this gives some indication that it might be working (long arms or an assistant may be required!) If it is not opening, fuel will not flow, is this why your sucking might have failed?
AIDY
Well-Known Member
Ooops sorry typing error there... i mean passes not by passes.
