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Discussion Starter #1
Just bought a new lpg kit for our 307cc. As it's something new to me I'm hoping there is some help/reasurance available. I know that the cylinders are numbered from the gearbox end, what I really need is pics of how to plumb in the fuel and lpg at the manifold or injector rail. I have an idea but not 100 % and the instructions aren't very clear. Thanks in advance.
 

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Numbers do not matter if its a new kit the wiring is colour coded you splice into the positive side of each injector and the coresponding gas injector has the same colour wires

Blue goes with blue injector splice red with red etc all kits are basically the same wiring so download wiring for a different kit if yours is unclear

Hardest bit for you is drilling injectors into manifold as your manifold may well be plastic !!
 

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You are aware that it has to be tested and a certificate issued before it is road legal ?
There are NO rules that are actually legaly enforcable regarding LPG conversions all that is required is that it is done by a competent person the certification has no legal value and would make no difference as to whether the vehicle is road legal or not!

As long as the converted vehicle complies with construction and use regs then it IS legal

There are lots of made up rules floating around the interweb but nothing with any legal value

Anyone can get certified by going on a LPG course as i did many years ago this then means you can self cert its all a bit of a joke to be honest.
 

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I believe the tank has to be tested to ensure there are no leaks etc. and that all pipework is checked for being safely secured and routed correctly so they won't be damaged under normal use of the vehicle. I'd be very surprised if anyone was allowed to fit a conversion and be allowed to drive around without it being certified as a safe and correct conversion. I would also expect it to fail an MOT without a certificate proving the job was done to a set standard.
 

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Discussion Starter #7
No certificate required for MOT. Not asking about legislation, I'm asking for pictures or help of how the LPG actually gets into the engine as the instructions are crap.
 

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As i have already said there are no rules only guidlines and as such they have no legal weight

Lpg conversions are not part of an mot ok if bits are falling off and likely to cause a danger then it will fail but that is same for petrol components

Try Auto Gas LPG - -TANKS/LPG-PARTS they have some diagrams for download
 

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Certificate likely required for insurance purposes - you need to send a copy to your insurers otherwise they may refuse to pay out.

They don't want someone bodging a conversion and making the car dangerous.

My lpg car was scrutinised very closely at mot time - a conversion is an intergral part of the car - so all pipes etc must be correctly routed, no corrosion, secure etc.
 

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Discussion Starter #10
Certificate likely required for insurance purposes - you need to send a copy to your insurers otherwise they may refuse to pay out.

They don't want someone bodging a conversion and making the car dangerous.

My lpg car was scrutinised very closely at mot time - a conversion is an intergral part of the car - so all pipes etc must be correctly routed, no corrosion, secure etc.
I'm on a traders policy and they are aware that I'm doing the conversion myself. Had cars with LPG before so I am aware of what they look for.
 

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I've been looking for you but got as far as you did. Depends on the manifold shape and material of it and the injectors. They can only press in, glue in, or clamp in with no thread to use. Maybe there needs to be adapters in the kit to go between the manifold and injector, like a gas compression fitting.
 

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depending on what type of injectors you are using the outlet will go to a rubber pipe and then onto a nozzle screwed into manifold or some are fitted close to the original injectors with a spacer under the original and this feeds the gas in the earlier one is the most common.

Is your manifold plastic or metal ?
 

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I would ask the supplier how they fit, gas is very dangerous.
Doesn't help or apply here, but in Turkey where they use TUV standards, the installation has to be certified safe and you must carry that certificate before you'll even be allowed into a testing station. They check system security and go round the car with a sniffer tool outdoors before issuing a cert. and this has to be done before every mot test and is a right pain as the two test stations where we live are an hour apart. Test's are done in the same government stations as trucks and buses, no garages can test vehicles. On the good side a test is valid for 2 years. I went back to alternative fueled cars, only one test needed.
 

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Discussion Starter #16
depending on what type of injectors you are using the outlet will go to a rubber pipe and then onto a nozzle screwed into manifold or some are fitted close to the original injectors with a spacer under the original and this feeds the gas in the earlier one is the most common.

Is your manifold plastic or metal ?
It's a metal one
 
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