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Author Topic: LPG - Multivalve stuck?  (Read 7196 times)

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philhoward

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LPG - Multivalve stuck?
« on: 03 August 2008, 21:12:21 »

My never ending saga of trying to run on LPG...

Some daft muppet (me) fitted his 3/4 full s/h tank effectively upside down and wondered why i couldn't get enough gas out.  Have now turned the tank the "right" way temporarily, but can't get a puff of gas out.  Solenoid is working (makes a lovely echo-y tick), but i suspect that the excess flow valve has been well upset by the upside down saga.

First question - how do you "reset" one that's (apparently) stuck shut?

Second one (in case there isn't a solution for the first question) - how do you get rid of about 60 litres of gas in order to change the multivalve if the outlet is shut?
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Lazydocker

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Re: LPG - Multivalve stuck?
« Reply #1 on: 03 August 2008, 21:46:56 »

just out of interest....... You have checked the manual shut off valve haven't you??? ::) ::) ::)

It'll most likely be a little wheel to turn...
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philhoward

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Re: LPG - Multivalve stuck?
« Reply #2 on: 03 August 2008, 21:54:13 »

Quote
just out of interest....... You have checked the manual shut off valve haven't you??? ::) ::) ::)

It'll most likely be a little wheel to turn...

That was the reason it didn't work the first time....when the tank was "upside down"...
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Lazydocker

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Re: LPG - Multivalve stuck?
« Reply #3 on: 03 August 2008, 21:56:18 »

Just a thought, because I made that mistake  ::) ::) :-[ :-[ ;) ;)

Just for peace of mind I'd try it the other way too :-? :-? :-?

You've nothing to lose by it and you may have turned it off instead of on :y :y :y
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Taxi_Driver

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Re: LPG - Multivalve stuck?
« Reply #4 on: 03 August 2008, 22:09:37 »

Quote
My never ending saga of trying to run on LPG...

Some daft muppet (me) fitted his 3/4 full s/h tank effectively upside down and wondered why i couldn't get enough gas out.  Have now turned the tank the "right" way temporarily, but can't get a puff of gas out.  Solenoid is working (makes a lovely echo-y tick), but i suspect that the excess flow valve has been well upset by the upside down saga.

First question - how do you "reset" one that's (apparently) stuck shut?

Second one (in case there isn't a solution for the first question) - how do you get rid of about 60 litres of gas in order to change the multivalve if the outlet is shut?

Easy wear gardening gloves and undo the valve and run  ;D It wont take long to empty itself  ;D

Actually i dont think there is an easy way to empty a tank apart from the above.......

I know when i had a tank leak......albeit a small one, the lpg installer told me to bring it back when i'd run out of lpg......coz he reckoned he'd only waste it and also wasn't legally allowed to 'loose' the lpg to the air.
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Re: LPG - Multivalve stuck?
« Reply #5 on: 03 August 2008, 22:11:48 »

Not supposed to vent LPG to atmosphere except in emergency!!! If you do... Usual safety precautions... Open space, not near drains/pits etc and NO NAKED FLAMES or sources of ignition!!!  ::) ::) ::)
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sassanach

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Re: LPG - Multivalve stuck?
« Reply #6 on: 03 August 2008, 22:20:47 »

never heard of an excess flow valve,what the eck is that?
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Re: LPG - Multivalve stuck?
« Reply #7 on: 03 August 2008, 22:22:00 »

Quote
never heard of an excess flow valve,what the eck is that?

It's a backup system for if the fuel lines got damaged.... I think!!!  :-/ :-/ :-/
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Kevin Wood

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Re: LPG - Multivalve stuck?
« Reply #8 on: 03 August 2008, 22:24:31 »

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Quote
never heard of an excess flow valve,what the eck is that?

It's a backup system for if the fuel lines got damaged.... I think!!!  :-/ :-/ :-/

Yep. If liquid flow from the tank exceeds a certain rate it shuts the service valve. It will flow enough liquid for the engine but will shut it off if the pipe is open due to damage, for example.

Kevin
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Lazydocker

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Re: LPG - Multivalve stuck?
« Reply #9 on: 03 August 2008, 22:26:04 »

Quote
Quote
Quote
never heard of an excess flow valve,what the eck is that?

It's a backup system for if the fuel lines got damaged.... I think!!!  :-/ :-/ :-/

Yep. If liquid flow from the tank exceeds a certain rate it shuts the service valve. It will flow enough liquid for the engine but will shut it off if the pipe is open due to damage, for example.

Kevin

Thanks Kevin... As I was typing I wasn't 100% sure  ::) ::) ::)
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philhoward

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Re: LPG - Multivalve stuck?
« Reply #10 on: 03 August 2008, 22:27:58 »

Quote
Quote
never heard of an excess flow valve,what the eck is that?

It's a backup system for if the fuel lines got damaged.... I think!!!  :-/ :-/ :-/
Excess flow/one way valve - basically if the valve sees too high a flow rate (i.e. a split pipe) it shuts off the flow from the tank.  Apparently they can cause problems on multivalve tanks (but not 4 hole tanks, from what I gather..?).  Trick in my case is getting the valve to re-open!

Lazydocker - have tried it open, shut, half way, solenoid on, solenoid off.  Even tried a gentle tap with a hammer in each of those configurations...
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sassanach

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Re: LPG - Multivalve stuck?
« Reply #11 on: 03 August 2008, 22:29:07 »

i have had the supply line out of a tank (4 hole )there is no valve underneath the solenoid, just a big hole.bit of a shock tho as i did'nt realise it had gas inside ;D
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Re: LPG - Multivalve stuck?
« Reply #12 on: 03 August 2008, 22:30:29 »

Quote
Quote
Quote
never heard of an excess flow valve,what the eck is that?

It's a backup system for if the fuel lines got damaged.... I think!!!  :-/ :-/ :-/
Excess flow/one way valve - basically if the valve sees too high a flow rate (i.e. a split pipe) it shuts off the flow from the tank.  Apparently they can cause problems on multivalve tanks (but not 4 hole tanks, from what I gather..?).  Trick in my case is getting the valve to re-open!

Lazydocker - have tried it open, shut, half way, solenoid on, solenoid off.  Even tried a gentle tap with a hammer in each of those configurations...

That's me out of ideas then!!!  ;D ;D ;D ;D

You could try calling Tinley Tech and asking them if it can be reset... The guys there have been fantastic to me in the past and supremely helpful  :y :y :y :y
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philhoward

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Re: LPG - Multivalve stuck?
« Reply #13 on: 03 August 2008, 22:31:24 »

Quote
Quote
Second one (in case there isn't a solution for the first question) - how do you get rid of about 60 litres of gas in order to change the multivalve if the outlet is shut?

Easy wear gardening gloves and undo the valve and run  ;D It wont take long to empty itself  ;D


And plenty of ice formation....Deserted car park? Strange hissing noise?  I make that "Pimms o'clock"!!!! ;D ;D ;D ;D
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sassanach

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Re: LPG - Multivalve stuck?
« Reply #14 on: 03 August 2008, 22:34:23 »

and the car will stink for approx a week afterwards!!!
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