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You'll want multipoint on a Jimjam and it is the more expensive option.
I have a mate near to me in Essex who's business is fitting this and he is an offroader so knows what's needed off road too - ie:where tanks need to be fitted without getting damaged - his business is in a small village called Stambridge near to Rochford, Essex.
If it helps anyone I can find his number.
Kirkynut
The underdog often starts the fight, and occasionally the upper dog deserves to win - Edgar Watson Howe.
I am also contemplating on installing an LPG fuel supply system in a petrol Jimny.
The first and main issue is the placement of the fuel tank. Jimny is already rather scarce on the cargo space.
While it is perfectly feasible to add a cylindrical LPG fuel tank in its trunk/boot, the tank will take at least 80% of the already tiny space in the trunk.
So the initiative is to figure out some alternative placement, in order to minimize the loss of space.
Placing the fuel tank under the vehicle is (in my opinion) not a viable option, as there is not much room underneath, and it would be exposed in all terrain driving conditions.
The only feasible underbody placement solution would be to remove the factory petrol fuel tank and install a different (much smaller) petrol fuel tank alongside a small LPG fuel tank. This is probably an expensive solution as it requires finding and incorporating a custom very small petrol fuel tank (and probably a hard to find very small LPG tank). Also, the vehicle would have a rather small range in both fuel types.
However, today a "combined" idea came to my mind - to use a little bit of trunk space and a little bit of underbody space!
Read on!
The trunk has a factory recessed space (a "ditch") which contains the factory tools like the jack, safety triangle, wheel nut wrench, etc.
The exhaust muffler is positioned below this recessed ditch, but there is a significant space between them (around 10 cm).
The idea is to completely cut out the recessed section from the trunk floor, and then weld in a much deeper recessed section there (so deep that it almost touches the exhaust muffler).
The new section should be made of stronger steel and with some additional braces to increase its load carrying capacity. Its bottom should be lined with some good heat insulating and heat resistant material, to isolate the heat from the exhaust muffler.
Then a small (but not too small) cylindrical LPG fuel tank should fit in this deep recessed space. About 1/2 to 2/3rd of the fuel tank would be in the hole, while the rest would take up the trunk space. However, the top of the LPG tank should be approximately level with the back of the rear seats when they are folded forward.
This means that a custom DIY metal or wooden box platform can then be constructed over the LPG tank, effectively providing a new boot floor on which to put the cargo. That new "floor" above the LPG tank would probably be level with the back of the rear seats when they are folded forward.
As for the placement of the jack, the triangle etc., they are easy to keep in a dedicated box or a bag in the trunk (and a hydraulic bottle jack and a semiprofessional long wheel nut wrench are better devices to have anyway!)
What do others think of this idea? Does it make sense?
Last edit: 04 Oct 2017 12:53 by Bosanek. Reason: Typo
Well those ideas are on the same line as mine - to locate the LPG tank half below the trunk and half in the trunk space (sort of).
Relocating the muffler or using a smaller one would further improve the options in this solution, but I do not know how expensive is that and what would the negative aspects of using a smaller muffler be.
In the meantime, I found a Polish company which produces a custom-made small petrol fuel tank + a holder for the LPG tank. This all fits in the space of the original 40 l petrol tank! The original fuel pump and the fuel gauge can be used in the small petrol tank.
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