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[Lazydocker]

Hi guys,

I have LPG already installed in my car (done before I got it), I know nothing about them and reading this thread was interesting.
In idiot language, what is:

Multivalve/ 4 pot and gas tight box? please.

I have a doughnut 50ltr in the wheel well of my estate, thats about all I know and that I get 200miles out of it! 

Basically a multivalve fits into a single hole tank and has 4 functions from the one valve: Fill, feed, level sensor and pressure relief. Because all 4 functions are performed by the same valve the liquid feed can be restricted and general view is that a multivalve isn't good for high demand fuelling.

A 4 hole tank has 4 separate holes for each of the above functions and can deliver a greater flow rate of liquid.

The gas tight box (or vapour box) is designed to contain any potential leak (if the tank over pressurised and had to vent some for example) and vent it safely to the outside of the vehicle via vent hoses

Hope that helps

[blackviper90210]

Hi guys,

I have LPG already installed in my car (done before I got it), I know nothing about them and reading this thread was interesting.
In idiot language, what is:

Multivalve/ 4 pot and gas tight box? please.

I have a doughnut 50ltr in the wheel well of my estate, thats about all I know and that I get 200miles out of it! 

Basically a multivalve fits into a single hole tank and has 4 functions from the one valve: Fill, feed, level sensor and pressure relief. Because all 4 functions are performed by the same valve the liquid feed can be restricted and general view is that a multivalve isn't good for high demand fuelling.

A 4 hole tank has 4 separate holes for each of the above functions and can deliver a greater flow rate of liquid.

The gas tight box (or vapour box) is designed to contain any potential leak (if the tank over pressurised and had to vent some for example) and vent it safely to the outside of the vehicle via vent hoses

Hope that helps

Cheers for that Lazydocker, that makes sense to me, lol. Will have a look at mine and see what kit mine is. Saying that I don't really have a clue what I'm bloody looking at 

[Cliffo B]

A very good move haveing Kevin do the manifold wish I'd have gone that route,my conclusion in the end was its one of those jobs you need practice on before you come good at it (drilling angles etc) and there's also the cost of a thread tap + arbour, 2 drill bits, cutting compound,and thread sealing compound.

[Cliffo B]

Ok L.D. I'll try and put together the final routine, materials and pitfalls, I arrived at for fixing in the tank, it should help a lot once known, a job as complicated as this could possibly be improved on,knowing my  style expect a long read

[Lazydocker]

Ok L.D. I'll try and put together the final routine, materials and pitfalls, I arrived at for fixing in the tank, it should help a lot once known, a job as complicated as this could possibly be improved on,knowing my  style expect a long read

Glad you've finally come around to my way of thinking

You can email it to me if you like... I'm happy to put a how 2 together once I've actually done the job, but not until then

I reckon I'm going to try and get a 630x270mm 72L tank

[TheBoy]

Basically a multivalve fits into a single hole tank and has 4 functions from the one valve: Fill, feed, level sensor and pressure relief. Because all 4 functions are performed by the same valve the liquid feed can be restricted and general view is that a multivalve isn't good for high demand fuelling.

A 4 hole tank has 4 separate holes for each of the above functions and can deliver a greater flow rate of liquid.

Though my 3.0l MV6, chipped, is fine on a decent flow multivalve...

[hotel21]

Couple of Q's.

Is it being filled via the adaptor visible when the tailgate is open?  Guessing not, as that would defeat the purpose of loading an estate to maximum?

What is used for the height packer?  Insulation sheets?  Blockboard or marine ply would add to the weight big style...

Otherwise, looks like a workable concept.    

[Lazydocker]

Couple of Q's.

Is it being filled via the adaptor visible when the tailgate is open?  Guessing not, as that would defeat the purpose of loading an estate to maximum?

What is used for the height packer?  Insulation sheets?  Blockboard or marine ply would add to the weight big style...

Otherwise, looks like a workable concept.    

 

Nope filler mounted elsewhere, tow bar is my position of choice

Insulation sheets to raise and then hard board to top it, then re-fit carpet if you choose to

[Lazydocker]

The dilemma continues...

650x270, 77L tank is £75 cheaper than 630x270

Might have to go for the larger one and do the modifications after all! :-/ :-/

[henryd]

The dilemma continues...

650x270, 77L tank is £75 cheaper than 630x270

Might have to go for the larger one and do the modifications after all! :-/ :-/

is it viable to chop the bottom out of the wheel well and get the tank lower so as not to lose so much load area?

[Lazydocker]

The dilemma continues...

650x270, 77L tank is £75 cheaper than 630x270

Might have to go for the larger one and do the modifications after all! :-/ :-/

is it viable to chop the bottom out of the wheel well and get the tank lower so as not to lose so much load area?

Not really, there's not a lot of clearance between the wheel well and the tank.

That's not a concern to me, it's just getting the air tight box into the well that's an issue

There are smaller tanks available but that, obviously, impacts on the range