Any One Cooking The Is On Gas?

[Fatbillslim]

i have done a gas conversion on my is 200, just intareasted if anyone else has had it done, it wasent an easy job to do but the resuts are well worth the aggro.

[Chris.S]

Not recommended on any Lexus or Toyota, LPG tends to burn the valves out

[MrADeveci]

Not recommended on any Lexus or Toyota, LPG tends to burn the valves out

←

Ooooops .... now you don't want that to happen !

[Fatbillslim]

yes lpg is a dry fuel and burns a little hotter and the exaust valve will suffer from valve seat reseasion and the is200 dosent have hydrolic lifters that would compensate for this. the fix is a flash loop kit simular to the one for running leaded car on unleaded i have done a gs300 aristo as well as my own and many cars without hydrolic lifters no problem.

[LennyLexus]

What sort of mpg are you getting?

And any loss in performance?

[Kevin Taylor]

I took my IS 200 (2004 model) to a reputable local garage to have it convertes for LPG. They have been unable to do it as there is no fuel return to the petrol tank. This will apparently cause problems with the fuel pump and the ECU reading to fuel pressure to high. The garage were going to fit a flash lube kit and came highly recommended by a number of people. Any ideas anyone.... want to get it coverted and start saving money

[Fatbillslim]

we have done a return-less fuel system on a few cars with out a problem but not the is200.

i think i can get around this problem, if it accoured, you would emulate the fuel preasure sensor and shut the pump down. easy.

the only problem i have on mine is that the petrol gague is computer controled and shows im using petrol on when on gas this reset's it self but i havent worked out the inervul it does this

my spelling makes me look stupid but im dislexic hope u can read this

[Rob]

can read it perfectly so dont worry about that - as for the fuel return, cant you use the tapping that is in the end of the fuel rail?

[Fatbillslim]

i donk know if this will work butthis is my engine bay with gas. very tidy install

[tof]

I have LPG installed on my IS200 and made 60000 km with no problems.

I have a Vialle installation.

[songguangjun]

I think that lexus or toyota cars are disigned for unleaded ganlined,so any fuel such as LPG is not suited for your car,and you do it ,the engine's performance and life will be falling!!!

[Fatbillslim]

i didnt know that. were did you find that out ?

i look after taxi's(toyotas) and fleets of car's that have done more than 150,000 miles.

id better tell them to stop using it

[LexusEdinburgh]

I have a 2 year old GS300 in my workshop at the moment with it's head off.

It has an LPG conversion.

Still early days in the diag but it looks like it has burnt valves.

Lexus recommend that you do not convert to LPG, it does not suit the VVT.

[Stu]

Glad i read this before i thought about getting a conversion done on mine!

I was looking for a way to improve the fuel economy, preferably without busting the engine, so i guess i'll have to keep looking for that money saving solution!

Stu

[Fatbillslim]

"FACT" lpg dosent damage the valves if you fit a flash loop

i was being sarcastic b4 to "songguangjun"

any one on gas with burnt valves or valve seat reseasion went to a bad installer

the gs300 i did was a taxi, see him evry 12 month for a service nothing elce

[maria]

We are trained installers and have stopped doing them.

We were contractors for a local firm who also don't do them any more.

[Monster-Mat]

Can we please steer the topic away from potentially selling kits, to factual infomation please........would be a shame to lock the topic as it is a very intresting topic

mat

[shorty]

What is a Flash Loop

[ColinBarber]

Flashlube is valve lubrication system. Like the additive you use on old cars when converting from 4 star leaded fuel to unleaded except you don't mix it with the fuel it is automatically injected. You do have to kept an eye on it to make sure you don't run out and adds slightly to the running costs.

It seems a lot of companies are now installing this system on all their installations so there must have been quite a few valve problems.

http://www.vanmeenen.com/LPG-autogas-Vlaan...g/flashlube.htm

[shorty]

Ah

Thanks Colin

[Fatbillslim]

as i only work for a garage im not trying to sell installs because it won't benafit me (infact i would hate to do another) and i haven't give contact info, i apologise if it looks like i am,

we only fit the kits to cars with no-hydrolic lifters as the sinking valve will burn the seat when it fail to seal compleatley

in all honesty i haven't got round to fitting any lube kits because i don't like the systems thay look ugly im after an alloy oil catch tank to make a nicer looking bottle im not in no rush either.