Auto-LPG Conversion Thread

[jut703]

To get more fuel mileage for every liter of fuel, taxi cab drivers sometimes adjust the flow rate of fuel to the engine. The consequence is a lean air-fuel ratio and less horsepower.

The result is a taxi cab with a 1.3L engine that gets slightly better fuel mileage and has just barely enough power to go up the typical flyover, in first gear. It also means potential overheating and accelerated wear & tear on the sparkplugs, motor oil and engine itself.

This is done by the taxi cab drivers to increase their take-home pay by saving some money on fuel.

There are cabs which are driven and owned by the same person. Typically these cabs are in a good state of tune and the owner/driver is well aware of the pros/cons of adjusting the fuel rate of the LPG system.

I have ridden in a number of LPG fuel taxi cabs and most are pretty well maintained and LPG system tuned well. Only once or twice in the past couple of years that I have had that feeling of being underpowered.

Hay. How short-sighted of those drivers.

Swerte mo GH ah. I seem to have a 60% chance of riding an underpowered taxi. Usually AE101 or AE111 XLs that increase my travel time by 10 min even without heavy traffic with their sheer snail pace.

[dencio1976]

Just wanted to share my own experience, since stale gas was my biggest problem 3 years ago. Not only that, my fuel pump eventually gave up with a perforated membrane and for lack of use. 6 months down the road I just gave up completely and disconnected the petrol supply to the carb and used LPG exclusively.

The switch allowed me to optimize ignition advance (increased advance early in the curve) yielding better performance. I have been using LPG exclusively since then and have had trouble free performance for a good 2.5 years with little more than regular maintenance.

I plan to remove the gasoline tank altogether and move the LPG tank into the void to regain more trunk space. Just haven't had time to do this due to constant daily use. I travel to Batangas City regularly to visit relatives in Calapan Mindoro and travel around Manila daily. I haven't missed going to a gas station at all.

If you don't really need the bi-fuel installation, why bother?

cheers,

steve

almost all of our taxis have this same setup except for the sentra 07 with sgi kit installed.


that's the thing that pisses me off. a lot of our drivers lean out the a/f mix of the LPG which inturn causes overheat related problems.

sure they may be saving that way but it's a maintainance nightmare for some engines that may already have begun to give out.

[n5110]

hinde ba nagkakaubusan ng lpg sa area niyo? dito sa total alabang, ON OFF ang supply

[ghosthunter]

hinde ba nagkakaubusan ng lpg sa area niyo? dito sa total alabang, ON OFF ang supply

same here but at least two of five stations in the area seems to have regular supply

[niky]

hinde ba nagkakaubusan ng lpg sa area niyo? dito sa total alabang, ON OFF ang supply

They're the only LPG station in the area... medyo mahirap sila sa supply because of that.

There are times when they've run out of certain blends of gasoline, too. Popular station.

[ghosthunter]

[SIZE="4"]Moderator's Note: CNG post moved to:

http://tsikot.yehey.com/forums/showthread.php?t=19388[/SIZE]

[eikichi]

My car had a top overhaul 3 weeks ago and I've been running it with gas instead. No adjustments were done to the venturi kit when the cylinder head was dismantled. Whenever I switch to LPG, my engine runs erratic. Yung idling niya babagsak tapos biglang mamamatay nalang. I tried cleaning the air filter pero ganon pa din. Thinking of adjusting the idling from the valves in the vaporizer. Any of you guys experienced this?

[ghosthunter]

My car had a top overhaul 3 weeks ago and I've been running it with gas instead. No adjustments were done to the venturi kit when the cylinder head was dismantled. Whenever I switch to LPG, my engine runs erratic. Yung idling niya babagsak tapos biglang mamamatay nalang. I tried cleaning the air filter pero ganon pa din. Thinking of adjusting the idling from the valves in the vaporizer. Any of you guys experienced this?

It would be best to bring it to the installer and have the Auto-LPG kit settings adjusted.

[daneklog]

im planning to get a 02 corolla altis 1.8G and transfer my sgi lpg kit from my adventure. Just want to inquire if there is somebody from the thread who converted same model. Please provide cons if there is?

My SGI kit set up to my adventure is in good working condition naman. thanks in advance.

[ghosthunter]

im planning to get a 02 corolla altis 1.8G and transfer my sgi lpg kit from my adventure. Just want to inquire if there is somebody from the thread who converted same model. Please provide cons if there is?

My SGI kit set up to my adventure is in good working condition naman. thanks in advance.

You can try checking the users from the list:

http://tsikot.yehey.com/forums/showthread.php?p=1343331

[daneklog]

thanks sir GH for your usual assistance

[vinj]

im planning to get a 02 corolla altis 1.8G and transfer my sgi lpg kit from my adventure. Just want to inquire if there is somebody from the thread who converted same model. Please provide cons if there is?

My SGI kit set up to my adventure is in good working condition naman. thanks in advance.

I would believe that there should not be much problems; although the Altis i use is a 1.6, it is related to the 1.8L engine and the set-up has been really problem-free; problems encountered (idling drop mainly) was fixed with some basi tuning.

[n5110]

Whenever I switch to LPG, my engine runs erratic. Yung idling niya babagsak tapos biglang mamamatay nalang. I tried cleaning the air filter pero ganon pa din. Thinking of adjusting the idling from the valves in the vaporizer. Any of you guys experienced this?

ayaw po ba mag steady ng idle pero when you try to switch at high speed ok? then pag binitiwan mo yung accelerator mag ddrop ulit ang idle hanggang mamatay ang makina? pag ganito po ang na experience niyo, you might need to bring it back to the lpg shop.yung sa akin 2 times na binaklas para ayusin.

napansin ko lang pag nag try ko i adjust yung idle screw dito na mag sstart ang problema, kaya yung sa akin from the time of last lpg service sept 09 until now smooth pa rin. air filter at spark plug lang ang pinapalitan ko. yung vaporiser hinde ko ginagalaw.

[eikichi]

ayaw po ba mag steady ng idle pero when you try to switch at high speed ok? then pag binitiwan mo yung accelerator mag ddrop ulit ang idle hanggang mamatay ang makina? pag ganito po ang na experience niyo, you might need to bring it back to the lpg shop.yung sa akin 2 times na binaklas para ayusin.

Yes, this is exactly what I am experiencing. Kaya minsan pag long stretches of open road, dun lang ako gumagamit ng lpg. Otherwise, gas lang ako pag stop and go traffic. Hirap din kasi irestart pag namatayan.

I brought it to the lpg installer to have it diagnosed. Sabi sakin hindi na daw ma-adjust yung idle ko since sagad na. I need to have my idling on gas increased because it's too low. So I immediately brought it to a reputable shop and had my idling checked. According to the mechanic, it is running fine on gas and requires no adjustment.

My car runs fine and problem free on gas but when switched to lpg, my rpm won't stay put. It traverses anywhere from 500 - 800 rpm. On gas, it is steady at 650-700 rpm with fluctuations to 800 rpm when the fan activates.

Ano ang binaklas sayo? Yung vaporizer?

[eikichi]

ayaw po ba mag steady ng idle pero when you try to switch at high speed ok? then pag binitiwan mo yung accelerator mag ddrop ulit ang idle hanggang mamatay ang makina? pag ganito po ang na experience niyo, you might need to bring it back to the lpg shop.yung sa akin 2 times na binaklas para ayusin.

Yes, this is exactly what I am experiencing. Kaya minsan pag long stretches of open road, dun lang ako gumagamit ng lpg. Otherwise, gas lang ako pag stop and go traffic. Hirap din kasi irestart pag namatayan.

I brought it to the lpg installer to have it diagnosed. Sabi sakin hindi na daw ma-adjust yung idle ko since sagad na. I need to have my idling on gas increased because it's too low. So I immediately brought it to a reputable shop and had my idling checked. According to the mechanic, it is running fine on gas and requires no adjustment.

My car runs fine and problem free on gas but when switched to lpg, my rpm won't stay put. It traverses anywhere from 500 - 800 rpm. On gas, it is steady at 650-700 rpm with fluctuations to 800 rpm when the fan activates.

Ano ang binaklas sayo? Yung vaporizer?

[n5110]

Ano ang binaklas sayo? Yung vaporizer?

very similar case sir. dati din dinala ko sa cleanfuel gas station para ipatingin, nung nakita ko na humawak na ng open wrench at luluwagan na yung throttle cable ko sabi ko wag mo ng galawin dahil wala naman akong problema pag naka petrol ako.

anyways sa GF binaklas yung vaparizer ko, may mga special hex screw sa palibot nito, as in baklas talaga. the idle screw is connected to a metal lever inside the vaporizer which tends to bend over time kaya maski na i adjust mo yung idle screw wala ng response.

tinuwid lang ito using a small hammer, a pliers hanggang visually straight na siya ulit, yung bend nasa 1 or 2 degrees lang naman. pag balik tsaka in adjust yung idle at umayos na.

in case na mangyari ulet sa akin ito i know what to do, madali lang baklasin basta dahil wala naman special procedure sa pagbaklas nito. the tricky part is re adjusting the idle kaya ill make sure na hinde ko magagalaw ang screw pag baklas.

hopefully ganyan din ang prob ng kit niyo kasi sabi sa gf pag yung diaphram ang nasira mas mahal.

dalhin niyo na sa installer niyo.

[eikichi]

anyways sa GF binaklas yung vaparizer ko, may mga special hex screw sa palibot nito, as in baklas talaga. the idle screw is connected to a metal lever inside the vaporizer which tends to bend over time kaya maski na i adjust mo yung idle screw wala ng response.

tinuwid lang ito using a small hammer, a pliers hanggang visually straight na siya ulit, yung bend nasa 1 or 2 degrees lang naman. pag balik tsaka in adjust yung idle at umayos na.

Mukhang kailangan ko bumalik sa GF para macheck ulit yung problem. Sana maayos na. Thanks sa tulong.

[mcrens86]

Sirs

may i ask what kind of LPG kit that will suits best for my old car,,lite ace90,5k engine,gas,carb type engine..how much is the conversion cost(estimate?)

i saw one donut shape tank installed to innova,,i like the way it looks and it doesnt consume space because it used to be the spare tire compartment.

im planning to convert my lite ace too,,i need some suggestion from you who have experience in LPG converted cars..

thanks in advance..

PS..accredited installer also..i need some feedbacks.

[mcrens86]

*GhostHunter
thanks for posting the lpg refillers and lpg installers.you're a big help to a newbie like me.thanks again sir.

[ezem]

long time no post hehehe

sir GH, ask ko lang, how much woud it cost kung iswa swap ko yung current tank ko into toroidal? kahit rough estimate lang...

eto yung itsura nung current tank