leak testing how ?

[mikejjj]

Is there a simple way to check if the vaporiser or injectors, vac hose etc are leaking ?
simple terms please, i do have the relevent software for the kit installed but could do with a few tips of what to look for
thanks guys
mike.

[binder4]

Usually soapy water and a paint brush does the job on hoses etc.

[Tubbs]

If you pop down to your local plumb centre they will sell you some leak detector fluid. Its not expensive. If you use soapy water i.e washing up liquid (50/50 mix) then you must wash it off after as its corrosive on copper over time. Or thats what i was taught when i did my corgi registration. They are gas safe these days. Bit like the lpga changing their name to uklpg really !

[rossko]

Is there a simple way to check if the vaporiser or injectors, vac hose etc are leaking ?

Soapy water won't find 'internal' leaks, e.g. dribbling injectors or split diaphragm. Such leaks can make morning starts difficult.

To check for a gross leak, run car on gas and use laptop software to note gas operating pressure.
Switch to petrol.
Observe gas pressure over some minutes. You might expect to see a small rise or fall as temperature changes, but not much.

To check for a smaller leak, run on gas and switch off for the night.
In the morning, disconnect a gas solenoid so that you can turn ignition on without gas being primed.
Switch on and use software to check gas pressure. It most likely will have dropped a bit due to temperature drop but no more than 10-20% or so.

This only tests for seeps in the low-pressure vapour system, not the high-pressure liquid side. It will not tell you where they are. It will not show up any seeps on high-pressure liquid side.

[dazarooney]

Is there a simple way to check if the vaporiser or injectors, vac hose etc are leaking ?

Soapy water won't find 'internal' leaks, e.g. dribbling injectors or split diaphragm. Such leaks can make morning starts difficult.

To check for a gross leak, run car on gas and use laptop software to note gas operating pressure.
Switch to petrol.
Observe gas pressure over some minutes. You might expect to see a small rise or fall as temperature changes, but not much.

To check for a smaller leak, run on gas and switch off for the night.
In the morning, disconnect a gas solenoid so that you can turn ignition on without gas being primed.
Switch on and use software to check gas pressure. It most likely will have dropped a bit due to temperature drop but no more than 10-20% or so.

This only tests for seeps in the low-pressure vapour system, not the high-pressure liquid side. It will not tell you where they are. It will not show up any seeps on high-pressure liquid side.

Yeah I had to get something like this done for a leak problem I had.