Lpg - Maintenance - How Often Change Lpg Filter And How To Clean?

[blacksuitdandruff]

How many km to change? How can I tell when it's time to change?

Second, I have an old LPG filter.

Would like to 'clean' it if possible.

How?

Also, would you know how much a spare LPG filter costs for a 1.6L 4 cylinder system?

Sadly there is a LPG parts store, so I was hoping to buy from a distributor or wholesaler.

Looking at the hoses that run through the filter, looks like I can change it myself easily without having to pay for installation and spending the time to go to the service shop unless the hose holds pressure.

Thanks.

[BSJ]

Post a picture of it. I am interested to see it.

[blacksuitdandruff]

pics

[Nowhereman60]

My installer gives use a reminder to return every 10,000 km to change the filter. Cost is 300 baht.

[WarpSpeed]

The hose is pressurized unless you shut off the gas at the tank, but pressure is not the primary concern as Lp is lower pressure but obviously leakage should be the concern both during and after the change. I have to say in all of the Lp cars I owned (at least 5 different cars) I never saw any filters maybe that's a new addition on later models, I'd be very careful doing this yourself, do not take the job lightly..

[blacksuitdandruff]

So you have never change a filter for your LPG system? Really? Wow, I wish I could save on that expense.

Could this mean that this filter of mine is a b*llsh*t part that just makes me spend more on service trips?

So how do the impurities from the gas get cleaned out prior to injection/combustion on your system(s)?

Btw, the filter pictured was very close to the injectors. It was clamped down with some screw hose clamps. Soapy water on the seams after screwing it down and running the system?

Also, I take it there is a shut off valve near the tank much like the kind of valves that is used for the cooking/BBQ tanks, yes? I have a boot donut to so that might be a more tricky valve to find compared to the long cylindrical variations.

Thanks.

The hose is pressurized unless you shut off the gas at the tank, but pressure is not the primary concern as Lp is lower pressure but obviously leakage should be the concern both during and after the change. I have to say in all of the Lp cars I owned (at least 5 different cars) I never saw any filters maybe that's a new addition on later models, I'd be very careful doing this yourself, do not take the job lightly..

[WarpSpeed]

So you have never change a filter for your LPG system? Really? Wow, I wish I could save on that expense.

Could this mean that this filter of mine is a b*llsh*t part that just makes me spend more on service trips?

So how do the impurities from the gas get cleaned out prior to injection/combustion on your system(s)?

Btw, the filter pictured was very close to the injectors. It was clamped down with some screw hose clamps. Soapy water on the seams after screwing it down and running the system?

Also, I take it there is a shut off valve near the tank much like the kind of valves that is used for the cooking/BBQ tanks, yes? I have a boot donut to so that might be a more tricky valve to find compared to the long cylindrical variations.

Thanks.

The hose is pressurized unless you shut off the gas at the tank, but pressure is not the primary concern as Lp is lower pressure but obviously leakage should be the concern both during and after the change. I have to say in all of the Lp cars I owned (at least 5 different cars) I never saw any filters maybe that's a new addition on later models, I'd be very careful doing this yourself, do not take the job lightly..

Ok it just occurred to me you probably have a multi-injector unit yes? Direct flow to the injectors? The systems I'm referring to have an injection venturi installed located in the intake line at some point, no need to filter as there is no really small orifices to block up like an injector..

In regards to your second question a professional installation should have a shut off valve immediately exiting the tank, yes..

[blacksuitdandruff]

Yes, it's a multi-point/injector system.

Yes, found the shut off valve.

Thank you.

Now I wish if I could find out how to clean the old filters if possible.

Read it on the one of the site posts that it could be cleaned, but maybe I shouldn't believe everything I read here.

[monty]

Yes, it's a multi-point/injector system.

Yes, found the shut off valve.

Thank you.

Now I wish if I could find out how to clean the old filters if possible.

Read it on the one of the site posts that it could be cleaned, but maybe I shouldn't believe everything I read here.

At a cost of 300 Baht I wouldn't touch the things, just replace.

One small dist particle blocking an injector can see you in the workshop with a much bigger bill.

[BSJ]

pics

There should be 2 shut off valves. The first one is back at the tank and is activated once you switch the ignition on and the second is under the bonnet and activated by pulses from the ECU.

If you replace the filter yourself you need to ensure it is sealed tighter than a ducks anus.

[blacksuitdandruff]

pics

There should be 2 shut off valves. The first one is back at the tank and is activated once you switch the ignition on and the second is under the bonnet and activated by pulses from the ECU.

If you replace the filter yourself you need to ensure it is sealed tighter than a ducks anus.

I take it that if the engine and ECU is off, the 2nd valve under the bonnet is shut off too, yes?

I will look into ways of measuring the pressure of a duck's anus. One obvious way comes to mind.

[BSJ]

pics

There should be 2 shut off valves. The first one is back at the tank and is activated once you switch the ignition on and the second is under the bonnet and activated by pulses from the ECU.

If you replace the filter yourself you need to ensure it is sealed tighter than a ducks anus.

I take it that if the engine and ECU is off, the 2nd valve under the bonnet is shut off too, yes?

I will look into ways of measuring the pressure of a duck's anus. One obvious way comes to mind.

The underbonnet (ECU valve) will not activate until the tank mounted valve has opened and it gets a signal from the CPS. I think they all work like that unless someone is playing around with the wiring.....or something new has come out in the last 3 years. The solenoid is like any other, only opens when power applied. Over the years my brother and I worked on these systems the failure rate for shut off valves was low.....and they always shut when they fail.

I have vernier calipers and feeler gauges.....but none suitable for the task!