Auto-LPG Conversion Thread

[ghosthunter]

Hmmm I found this on STARGAS' website... diesel-lpg conversion.

http://stargasphil.com/stargas/diesel.htm

The D-GAS (Diesel Gas Auto System) has been designed and developed by D-Gas Pty Ltd. The system has been designed to reduce diesel exhaust emissions on turbo charged and naturally aspirated diesel engines by improving the diesel combustion making the engine more efficient and lowering exhaust emissions.

Added advantages:

Smoother and Quieter Engine;
Increase in Performance;
Increase in Engine Torque;
Decrease in Diesel consumption;
Reduced Carbon build up in the Engine and Exhaust system
which in turn reduces carbon in the engine oil;
Lower engine oil temperature;
May increase Engine Life.

Click on link for complete text: http://stargasphil.com/stargas/diesel.htm

[ghosthunter]

LOL!

Check this blog out: http://batvolks.blogspot.com/2008_12_01_archive.html

Scroll down until you spot the VW Bus with the LPG conversion. You'll know when you've found it.

[RGmontemayor]

Here's mine done at GreenFuel http://www.greenfuel.com.ph

The toroidal fuel tank




Fuel tank placement underneath Toyota Innova 2007



Very happy with the conversion and ROI came at about 10 months. My LPG kit is now over a year old.

cool pics man... thanks for the pics.. just a question, if i'm doing it in my rav, do you think they can fit the tank underneath? the spare tire for the rav is at the back of the car. also, where do you now place your spare tire now?

[paolorenzo]

LOL!

Check this blog out: http://batvolks.blogspot.com/2008_12_01_archive.html

Scroll down until you spot the VW Bus with the LPG conversion. You'll know when you've found it.

Hehehe... At least it solves the non-existent LPG stations problem, when doing provincial trips. Pero di ba mas mahal ang kitchen LPG than auto-LPG (if calculated per liter)? How many kms kaya ang isang 11kg tank for Filmore?

[ghosthunter]

Hehehe... At least it solves the non-existent LPG stations problem, when doing provincial trips. Pero di ba mas mahal ang kitchen LPG than auto-LPG (if calculated per liter)? How many kms kaya ang isang 11kg tank for Filmore?

The price is actually comparable unless you get your kitchen LPG tank delivered (delivery charge).

LPG is roughly 2 liters per 1 Kg, so the 11kg tank would be holding around 22 liters of LPG. So thats around half the capacity of those using a 50L Auto-LPG tank.

Of course, mileage per liter of LPG would vary per vehicle. But remember the mileage of LPG is comparable to gasoline anyway. So the VW Bus owner would still be saving on the cost of fuel.

[ghosthunter]

cool pics man... thanks for the pics.. just a question, if i'm doing it in my rav, do you think they can fit the tank underneath? the spare tire for the rav is at the back of the car. also, where do you now place your spare tire now?

It's similar to what is done to other large SUVs like the Ford XP:



The Auto-LPG tank goes where the spare tire was stored. The spare tire now goes into the back of the SUV. If you need to carry larger items, you can always temporarily unload the spare or move it to the front or middle seats.

[Mile2]

cool pics man... thanks for the pics.. just a question, if i'm doing it in my rav, do you think they can fit the tank underneath? the spare tire for the rav is at the back of the car. also, where do you now place your spare tire now?

Spare tire

[ryanboy]

Its my first post on this site just registered yesterday, but i read the entire thread 3 days before I made my decision to convert my automatic 2.0 Toyota Revo VX 200 last Aug 26, 2009. Before conversion it consumes 6L/km on unleaded, casa maintained till today. I followed the path of Ghosthunter , went with open loop venturi type efi emulator at NAIADS, cost me 24,000 pesos for the kit with 500 pesos lpg load. The reason I went with the dinosaur NAIADS is 1. I dont want the problems encountered with the sgi kit as i have followed on this thread, like ex. problems with unclean lpg and 2. The dependent nature to the computer for tune up to where it was set up. My fear is if the company that that sold the sgi kit closes shop where will I go for tune up 3. I have monitored GH experiences with his corolla Gli A/T done at NAIADS and made my conclusions from there.

I've observe the car for 1 week, going up to Antipolo City, city driving to Pasig. My first full tank 6 days ago cost me 856 pesos, 40 liters at 21.4/L of lpg right now i computed my FC at 5.5L/km. Will do change my air filters every 2500km and have not change the ignition timing. Would like to thank you guys for all the information and shared experiences with lpg. I will also share my good and bad experiences whenever i have one. Thanks again and i am loving my Revo again.

[ghosthunter]

I've observe the car for 1 week, going up to Antipolo City, city driving to Pasig. My first full tank 6 days ago cost me 856 pesos, 40 liters at 21.4/L of lpg right now i computed my FC at 5.5L/km. Will do change my air filters every 2500km and have not change the ignition timing. Would like to thank you guys for all the information and shared experiences with lpg. I will also share my good and bad experiences whenever i have one. Thanks again and i am loving my Revo again.

Regarding your air filter, you don't have to replace it every 2500km. Just clean it by blowing compressed air on it to remove the accumulated dirt can extend it's use before you have to replace it.

Good luck with your REVO.

[scian_ph]

I also have the same experience last week after na stuck ako sa INC traffic jam. driving a 10KM stretch in 7hours. anyways, i also suspected that the solenoid is partially open when i start my car in the morning. nangyari lang ito 2 times and after that normal na ulit ang start ko whenever the engine is cold.

dati kasi napag laruan ko yung switch. cold engine, nag start ako sa gas then after a few seconds auto switch to LPG, then binalik ko ulit sa gas. dito ko na experience na parang lunod ng gas yung carb.

yung na experience ko recently parang palyado ang makina, kumakalog yung engine, pati dashboard pati tambutso. pero after mga 3 minutes bumalik na sa normal. hinde ko tuloy alam kung anu naging problema. ipapa check ko na rin sa greenfuel, this month na kasi ang 1 yr ng kit ko.

ang hinde ko lang talaga mahuli sa lpg is yung pag adjust ng idling, i tried to adjust a few times pero kailangan talaga ng practice. the rest ok naman.

Solenoid is an electromagnetic valve used to close and open the LPG flow in the copper pipe. When the electric current is charge, the winding will create a magnetic force to left up the valve to open. And when the current is disable, the spring will push the valve to close. So, the solenoid doesn't open partially. Cold starting is normal even in the gasoline mode. But too much hard starting always happens when: there is a premature clog on the system, dirty LPG Mixer and air filter. And when the engine is hot, the clog will reach its melting point(it will become soft), causing a continues LPG flow.

In a carb type engine when changing from Gasoline to LPG vehicle should be at rest. Press the LPG Changeover Switch to neutral mode, it will close the both petrol and LPG solenoids to consume all the petrol inside the carburetor, then the engine will shut-off. Press to the LPG mode then start the engine. When you switch directly, at a moment the engine will consume both petrol and LPG, causing insufficient supply of air in the combustion chamber because it was displaced by the amount of LPG. As a result why you experiencing like drowning.

The ideal Air-Fuel Ratio is 14.7 kg of air per 1 kg of petrol. So, insufficient supply of air can cause poor combustion, resulting to engine abnormal vibration. And the Black smoke in the tailpipe is the unburned fuel.

[kapitan88]

Solenoid is an electromagnetic valve used to close and open the LPG flow in the copper pipe. When the electric current is charge, the winding will create a magnetic force to left up the valve to open. And when the current is disable, the spring will push the valve to close. So, the solenoid doesn't open partially. Cold starting is normal even in the gasoline mode. But too much hard starting always happens when: there is a premature clog on the system, dirty LPG Mixer and air filter. And when the engine is hot, the clog will reach its melting point(it will become soft), causing a continues LPG flow.

In a carb type engine when changing from Gasoline to LPG vehicle should be at rest. Press the LPG Changeover Switch to neutral mode, it will close the both petrol and LPG solenoids to consume all the petrol inside the carburetor, then the engine will shut-off. Press to the LPG mode then start the engine. When you switch directly, at a moment the engine will consume both petrol and LPG, causing insufficient supply of air in the combustion chamber because it was displaced by the amount of LPG. As a result why you experiencing like drowning.

The ideal Air-Fuel Ratio is 14.7 kg of air per 1 kg of petrol. So, insufficient supply of air can cause poor combustion, resulting to engine abnormal vibration. And the Black smoke in the tailpipe is the unburned fuel.

I am having this kind of problem now. Anyone tried to measure the voltage supplied to the solenoid? My solenoid for the petrol is f'd up. Di nag di-disengage. Nakuha ko is 1V lang all the time, then when I tried to switch sa neutral, naka 1V pa din, while when I checked yung solenoid ng lpg line, pag switch on, momentarily 1v, then 0 na, then if i switch off, momentary 1v, then 0 ulit. Or baka mali lang ako ng setting sa tester? masyado yata mababa yung 1? (i used digital VOM on 20VDC setting).

ang side effects na nangyayari is even if i switch to neutral, hindi nauubos yung petrol sa float (mitsu carb type), kaya continues pa din ang supply, (also i dont hear yung tick sound ng solenoid whenever switching from petrol to neutral or v.v.). Mga 10-30 minutes na ganito kahirap i-switch off yung petrol line ko, then after a while na mag-init, bibitaw na din, and ok na, naka switch na ko sa lpg. Nothing unusual sa black box switcher, naka ilaw yung petrol indicator when in petrol, then all lights off in neutral, then, lpg indicator with content level if in lpg mode. Yun lang talaga ang natrace ko yung power papunta ng solenoid ng petrol, parang tuloy tuloy ang daloy.

Almost always na ganito lumalabas yung problem ko, medyo puno pa kasi ang sked ko at di pa maibalik sa greenfuel, pero next week, pasyalan ko na sila.

[tediber]

either something wrong with the electrical line (voltage) going to the solenoid or the solenoid itself is already faulty ...... since our vehicles use 12V system ..... my guess is it's a 12V solenoid (but ask the experts to be sure) ..... you probably should be getting the measurement closer to 12V ...... 10V or up

[n5110]

Solenoid is an electromagnetic valve used to close and open the LPG flow in the copper pipe. When the electric current is charge, the winding will create a magnetic force to left up the valve to open. And when the current is disable, the spring will push the valve to close. So, the solenoid doesn't open partially. Cold starting is normal even in the gasoline mode. But too much hard starting always happens when: there is a premature clog on the system, dirty LPG Mixer and air filter. And when the engine is hot, the clog will reach its melting point(it will become soft), causing a continues LPG flow.

In a carb type engine when changing from Gasoline to LPG vehicle should be at rest. Press the LPG Changeover Switch to neutral mode, it will close the both petrol and LPG solenoids to consume all the petrol inside the carburetor, then the engine will shut-off. Press to the LPG mode then start the engine. When you switch directly, at a moment the engine will consume both petrol and LPG, causing insufficient supply of air in the combustion chamber because it was displaced by the amount of LPG. As a result why you experiencing like drowning.

l.

Thanks for the info sir. my lpg kit is emulator type, so normally i start the engine with petrol and switch to lpg pag half ng yung temp gauge ko and while the car is in motion unlike sa carb type.

I went to speedy fix last week to have my car diagnose kasi nga i have problem at cold starts parang palyado ang makina then it will be normal after 2 minutes.

napansin lang ni Migs ( speedyfix) pag naka gas ako may konting palya yung engine compared when running on LPG even when the engine is already warmed up.

he suggested to make a full tank and run on petrol for a while, he suspects the cars petrol injector is somehow malfunctioning dahil siguro 99% of the time i use lpg.

so now im monitoring my car and for the meantime petrol muna para ma check kung mawawala yung problem ko during cold starts.

thanks to migs, very accomodating

[eikichi]

I also experienced the same situation and had it checked. Dinala ko sa Greenfuel yung sasakyan and was informed na walang problema yung solenoid ko. Sabi sakin try checking the fuel pump or the injectors. I had my car checked and lo and behold, may problema nga sa injectors ko. nung kinalas yung unang injector, barado na sya. All the injectors were clogged with solidified/dried gas daw. Parang alkitran nga. Color was dark brown and emitted a rich foul smell of gas. Nilinis lang muna yung 4 na injectors using gasoline and dried using compressed air tapos binalik ulit. After that, ok na ulit andar ko using gas. Dapat pala inuubos ko yung gas reserve ko more often. I only use gas before shifting to LPG and before turning off the engine when I get home. Maybe you can try having it checked as well. Baka dun din ang problema.

Thanks for the info sir. my lpg kit is emulator type, so normally i start the engine with petrol and switch to lpg pag half ng yung temp gauge ko and while the car is in motion unlike sa carb type.

I went to speedy fix last week to have my car diagnose kasi nga i have problem at cold starts parang palyado ang makina then it will be normal after 2 minutes.

napansin lang ni Migs ( speedyfix) pag naka gas ako may konting palya yung engine compared when running on LPG even when the engine is already warmed up.

he suggested to make a full tank and run on petrol for a while, he suspects the cars petrol injector is somehow malfunctioning dahil siguro 99% of the time i use lpg.

so now im monitoring my car and for the meantime petrol muna para ma check kung mawawala yung problem ko during cold starts.

thanks to migs, very accomodating

[paolorenzo]

I also experienced the same situation and had it checked. Dinala ko sa Greenfuel yung sasakyan and was informed na walang problema yung solenoid ko. Sabi sakin try checking the fuel pump or the injectors. I had my car checked and lo and behold, may problema nga sa injectors ko. nung kinalas yung unang injector, barado na sya. All the injectors were clogged with solidified/dried gas daw. Parang alkitran nga. Color was dark brown and emitted a rich foul smell of gas. Nilinis lang muna yung 4 na injectors using gasoline and dried using compressed air tapos binalik ulit. After that, ok na ulit andar ko using gas. Dapat pala inuubos ko yung gas reserve ko more often. I only use gas before shifting to LPG and before turning off the engine when I get home. Maybe you can try having it checked as well. Baka dun din ang problema.

Sir eikichi, where did you get your injectors checked and cleaned? Sa casa po ba?

[scian_ph]

I am having this kind of problem now. Anyone tried to measure the voltage supplied to the solenoid? My solenoid for the petrol is f'd up. Di nag di-disengage. Nakuha ko is 1V lang all the time, then when I tried to switch sa neutral, naka 1V pa din, while when I checked yung solenoid ng lpg line, pag switch on, momentarily 1v, then 0 na, then if i switch off, momentary 1v, then 0 ulit. Or baka mali lang ako ng setting sa tester? masyado yata mababa yung 1? (i used digital VOM on 20VDC setting).

ang side effects na nangyayari is even if i switch to neutral, hindi nauubos yung petrol sa float (mitsu carb type), kaya continues pa din ang supply, (also i dont hear yung tick sound ng solenoid whenever switching from petrol to neutral or v.v.). Mga 10-30 minutes na ganito kahirap i-switch off yung petrol line ko, then after a while na mag-init, bibitaw na din, and ok na, naka switch na ko sa lpg. Nothing unusual sa black box switcher, naka ilaw yung petrol indicator when in petrol, then all lights off in neutral, then, lpg indicator with content level if in lpg mode. Yun lang talaga ang natrace ko yung power papunta ng solenoid ng petrol, parang tuloy tuloy ang daloy.

Almost always na ganito lumalabas yung problem ko, medyo puno pa kasi ang sked ko at di pa maibalik sa greenfuel, pero next week, pasyalan ko na sila.

The Solenoid Valve (SV) is at Normally Close (NC) position, meaning without electrical charge it is at close position. The SV is working at 7.5 A and 12V DC supply. If you switch on LPG mode then your hear a "TICK" sound, that indicates that the SV is at open position. If you try your VOM on your battery prior to your test in SV supply voltage then their is something wrong with the electrical system.

Second, if the electrical system is fine, then the tip of the Valve that close/open the flow is not already uniformly flat due to wear and tear. So, in that point even at close position there is still a flow of petrol supply.

Third, this two factors can occur at the same time.

May I know what brand of Auto LPG Kit you are using?

[n5110]

. All the injectors were clogged with solidified/dried gas daw. Parang alkitran nga. Color was dark brown and emitted a rich foul smell of gas. Nilinis lang muna yung 4 na injectors using gasoline and dried using compressed air tapos binalik ulit. After that, ok na ulit andar ko using gas. Dapat pala inuubos ko yung gas reserve ko more often. I only use gas before shifting to LPG and before turning off the engine when I get home. Maybe you can try having it checked as well. Baka dun din ang problema.

thanks for the inputs. same question, san po kayo nagpalinis ng injectors? yung sa akin naman ok pa kasi i can run on gas without any problems pero gusto ko din sana ipalinis kung saan pwede at baka madumi na rin. Thanks.

[vinj]

What i do is once a week i do a hard run on gasoline mode (redline on 1st to 3rd gears) on an open stretch of road when i go to work early in the AM.

[eikichi]

I had my injectors cleaned by my cousin. He just removed the injectors one at a time, cleaned the clogged tips using gasoline, then dried it up using compressed air. He made sure the injectors still work before making any conclusions whether it is defective or not. This is also what the people from GreenFuel told me. Injectors might be clogged because I don't use gas more often.

Sir eikichi, where did you get your injectors checked and cleaned? Sa casa po ba?

[dragonmate]

[ame="http://vids.myspace.com/index.cfm?fuseaction=vids.individual&VideoID=98447 73"]Audi S8 running at 310 kph on LPG[/ame]