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Author Topic: LPG testing advice required  (Read 1112 times)

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Markie

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LPG testing advice required
« on: 27 December 2007, 20:39:54 »

Hi All

Im contemplating buying a vehicle with full lpg kit on it, but know nothing about lpg.

What ests can i run when inspecting the vehicle that will indicate how good the system is, should there be any documentation / certificate etc?

TIA  :)
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Re: LPG testing advice required
« Reply #1 on: 27 December 2007, 20:54:19 »

look for injector points on the plenum, if its got anything on the bagpipes/airbox its a mixer system. Which is not as good as the Sequential system.

Should have a certificate, though not strickly needed for insurance.
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Kevin Wood

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Re: LPG testing advice required
« Reply #2 on: 27 December 2007, 21:03:55 »

Also have a look at how the system has been installed. The wiring to the injectors will have to have been intercepted somewhere, and an extra ECU fitted. Just see how good a job has been done of this. Neatly spliced wires with heat shrink and neat and sensible cable routing is a good thing, loads of insulation tape and a generally messy installation is not. The heater plumbing should have been diverted to flow through the evaporator so see what sort of a job has been done on that too.

Drive it on both fuels and see how it runs. Check for EML/Emissions light that has been disabled to cover up bad tuning of the LPG system. Might be worth trying to identify the system to see if it's a good one. Certainly whether it's mixer / SGI as this would have a big impact on the value IMHO.

Kevin
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Markie

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Re: LPG testing advice required
« Reply #3 on: 27 December 2007, 21:12:04 »

thanks guys, may as well get over the embarrasment, it a Grand Cherokee, MOT failure, got advisory and it needs brke pipes and dics.

Full esrvice history and all the extras....including towbar...were talking a purchase price similar to big LCD in Comets sale  ;)  :o
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Re: LPG testing advice required
« Reply #4 on: 27 December 2007, 21:32:18 »

this shape?



or this?



Being american i bet the engine bay is errr basic!
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Markie

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Re: LPG testing advice required
« Reply #5 on: 27 December 2007, 21:39:49 »

first one mate  - its a "grand", the second is just a "cherokee"....

4litre straight 6
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Re: LPG testing advice required
« Reply #6 on: 27 December 2007, 21:45:37 »

Quote
first one mate  - its a "grand", the second is just a "cherokee"....

4litre straight 6

very nice, been in the second of the two, bit nasty inside!

Not been in the newer shape ones but they look a lot better!
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JamesV6CDX

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Re: LPG testing advice required
« Reply #7 on: 27 December 2007, 22:22:14 »

Newer shape ones are comfy...
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Markie

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Re: LPG testing advice required
« Reply #8 on: 27 December 2007, 22:50:51 »

Quote
Newer shape ones are comfy...

not bothered, a long as the horses being towed are happy  ;D ;D
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