engine doesn't shut off

[marcot]

yesterday my volvo d3 110 started as usual (key not button) , but it didn't shut off simply by turning the key . I used the emergency shut of button on the engine.
I changed the key and its mechanism but no success.

any idea?
marc

hr 48 kaskelot

 

[lustyd]

I don't know the answer to this but will pose another question which may be important.

On "normal" installations the key doesn't switch off the engine and in this case it's important to never switch the key off before pulling the engine kill switch to avoid killing diodes in the electrical system.

I am assuming therefore that this situation is then effectively the same since the engine off part of the system is broken. How, if that is the case, can it be tested without causing damage? Of course I may be taking too great a leap in my assumption of how it works!
Cheers
Dave

 

[Tranona]

The Stop will be operated by a solenoid that works when the key is turned off. That has probably failed - you will see it connected to a lever on the fuel pump.

 

[marko99]

yesterday my volvo d3 110 started as usual (key not button) , but it didn't shut off simply by turning the key . I used the emergency shut of button on the engine.
I changed the key and its mechanism but no success.

any idea?
marc

hr 48 kaskelot

I suggest that you check the connections to your stop solenoid - it may be something as simple as the wire having come off the spade connector either behind your ignition switch or at the solenoid itself. If your engine normally stops by using the key only, I presume you need to turn the key to a particular setting first to stop the engine rather than just turning it off (maybe back past the normal "off" position) ?

 

[KellysEye]

I agree about the solenoid. One other reason, that we had, was the battey was flat so no power for it.

 

[marcot]

I don't have any engine kill switch onboard: I simply turn the key as on a car.

no specific position of the key to turn the engine off.

 

[Heckler]

yesterday my volvo d3 110 started as usual (key not button) , but it didn't shut off simply by turning the key . I used the emergency shut of button on the engine.
I changed the key and its mechanism but no success.

any idea?
marc

hr 48 kaskelot

On mY MD22 there is a threaded insert on the pump, the solenoid is inside that, when this fails the engine wont switch off and you have to push the stop lever on the pump.
Probably the same on yours, genuine part for mine 250 euros, VW golf one, buttons!
Hmmm see here, http://www.marinepartseurope.com/en/volvo-penta-explodedview-7744550-23-6605.aspx if this is it your tough out of luck! 331 euros!
Stu

 

[Playtime]

I don't have any engine kill switch onboard: I simply turn the key as on a car.

no specific position of the key to turn the engine off.

When you say "no specific position of the key to turn the engine off" does this mean you just return the key to the vertical position (as you would with a car)?

If the answer is yes then you probably have what is termed an 'energize to run' system. This means that the stop solenoid is held inoperative by applying power when the key is turned on. When the key is turned off (returned to the vertical), power is removed from the stop solenoid, the solenoid returns to its 'off' position and the engine stops. If this is indeed how your system works then one possible cause is that the solenoid is sticking i.e. not returning to the off position. Another (less likely, I hope) cause could be that the keyswitch is not disconnecting the solenoid when in the off position.

If the answer to my first question is no (i.e. you have to turn the key to the left to turn the engine off) then you have an 'energize to stop' system. In this case the solenoid works the opposite way and is energised when the key is turned to the left to stop the engine. I have this system on my MD22L and it sometimes fails to stop the engine. I have determined that the fault lies in the keyswitch failing to make proper contact when the key is turned to the left. Since the keyswitch is sealed and costs over £150 to replace from Volvo (and I can't find a suitable replacement elsewhere) I am living with the problem. Usually, a bit of fiddling with the key gets the desired result. Occasionally, though, I have to nip below and use the mechanical stop mechanism on the engine, which can be annoying.

A simple long term solution (which I plan to do over the winter) is to fit a push to stop button next to the keyswitch and use this to energise the stop solenoid.

 

[VicS]

I don't have any engine kill switch onboard: I simply turn the key as on a car.

no specific position of the key to turn the engine off.

That is correct and it can be confirmed by reading the owners manual ( See Volvo Penta's website)

Remainder of post deleted as cannot find enough info about the system on this engine to give accurate advice

 

[KenMcCulloch]

On "normal" installations the key doesn't switch off the engine and in this case it's important to never switch the key off before pulling the engine kill switch to avoid killing diodes in the electrical system.

(Apologies for thread drift) This is a common myth. It's disconnecting the batteries from the alternator output while the engine is running that does for the diodes. Turning of the key with the engine running on a conventional diesel just disables the alarms, so is not that good an idea but does no actual harm.

 

[VicS]

When you say "no specific position of the key to turn the engine off" does this mean you just return the key to the vertical position (as you would with a car)?

If the answer is yes then you probably have what is termed an 'energize to run' system. This means that the stop solenoid is held inoperative by applying power when the key is turned on. When the key is turned off (returned to the vertical), power is removed from the stop solenoid, the solenoid returns to its 'off' position and the engine stops. If this is indeed how your system works then one possible cause is that the solenoid is sticking i.e. not returning to the off position. Another (less likely, I hope) cause could be that the keyswitch is not disconnecting the solenoid when in the off position.

If the answer to my first question is no (i.e. you have to turn the key to the left to turn the engine off) then you have an 'energize to stop' system. In this case the solenoid works the opposite way and is energised when the key is turned to the left to stop the engine. I have this system on my MD22L and it sometimes fails to stop the engine. I have determined that the fault lies in the keyswitch failing to make proper contact when the key is turned to the left. Since the keyswitch is sealed and costs over £150 to replace from Volvo (and I can't find a suitable replacement elsewhere) I am living with the problem. Usually, a bit of fiddling with the key gets the desired result. Occasionally, though, I have to nip below and use the mechanical stop mechanism on the engine, which can be annoying.

A simple long term solution (which I plan to do over the winter) is to fit a push to stop button next to the keyswitch and use this to energise the stop solenoid.

Why not go to the VP website and read the owners manual..... you will then be in a much better position to offer advice as you will then know how the system is supposed to work!

 

[lustyd]

(Apologies for thread drift) This is a common myth. It's disconnecting the batteries from the alternator output while the engine is running that does for the diodes. Turning of the key with the engine running on a conventional diesel just disables the alarms, so is not that good an idea but does no actual harm.

Thanks for clearing that up. I was always told the batteries were connected via that circuit which was what caused the problem. That certainly explains the lack of threads about blown diodes though!

 

[Playtime]

Why not go to the VP website and read the owners manual..... you will then be in a much better position to offer advice as you will then know how the system is supposed to work!

Why try and be smart, Vic? You discourage others from bothering to try and help.

I gave a simple explanation of the 2 types of system that can be used for an engine stop system, based on experience. Nothing I said was incorrect and others, without the time or inclination to dig into Owners Manuals right now, may learn something.

 

[VicS]

Why try and be smart, Vic

Because by taking a few moments to do a bit of research one can often give a succinct reply which is totally relevant to the question that has been asked.

 

[Playtime]

Because by taking a few moments to do a bit of research one can often give a succinct reply which is totally relevant to the question that has been asked.

Good for you but don't spoil it by having a pop at others who are also trying to help.

 

[RichardS]

Why not go to the VP website and read the owners manual..... you will then be in a much better position to offer advice as you will then know how the system is supposed to work!

I could understand this criticism being levelled at the OP but why level it at someone who is simply trying to help?

Richard

 

[NormanS]

I could understand this criticism being levelled at the OP but why level it at someone who is simply trying to help?

Richard

Bad hair day.

 

[NormanS]

(Apologies for thread drift) This is a common myth. It's disconnecting the batteries from the alternator output while the engine is running that does for the diodes. Turning of the key with the engine running on a conventional diesel just disables the alarms, so is not that good an idea but does no actual harm.

Mine is stopped by turning the key beyond the stop position, and I've always wondered about that. Thanks for clearing that up.

 

[VicS]

I could understand this criticism being levelled at the OP but why level it at someone who is simply trying to help?

Richard

Because although the first half was in fact correct the second half of the post was an irrelevant explanation about how the stop system worked on an MD22

Got a problem with a D3-110 you wnat to know about how the system works on a D3-110 not how it works on MD22

There is no criticism that can be levelled at the OP.
He knows he just switches it off to stop it.
In fact he is to be commended for having read the manual knowing about the emergency stop button!

 

[marko99]

Why not go to the VP website and read the owners manual..... you will then be in a much better position to offer advice as you will then know how the system is supposed to work!

DOH - I've suddenly remembered why I stopped checking in here every day. Bye everyone !!