problem after install LPG
Brand: TOYOTA Model: Corolla
Year: 1992 Miles: 100001 – More
From: thanit thanatham
Good Evening K. R Thanes.
I need to type in English again..sorry krub. And I could not type comma because the system will show error once I click submit. So I use the …. (dot dot dot) to represent comma krub.
My problem is about LPG. I have LPG carburator system installed on 2 cars.
1) Toyota Corolla AE92 1.6GTI 4AGE manual transmission…original.. no modification. There is problem of unstable RPM. On Gasoline(both before and after LPG installation)..when air-con(compressor) works…rpm at 950. When compressor does not work…rpm at 750. However once the compressor start to work….it drop to 600rpm first before go up to 950. After install the LPG…same thing happen. But once I SWITCH the button from Gasoline to LPG..the rpm is unstable at all. It goes up and down all the time from 450 to 1000rpm. I do not know what happen but when I was at garage to pick up my car..it works well.
Oh… whenever I want to stop engine… I switch to OFF. I will have to wait for 5 seconds…no less… for the engine to stop.
2) Toyota Corona ST191 200CC 3S-FE year1993 Automatic transmission. I have LPG installed on him as well. Same system. No problem of unstable rpm when use gasoline. There was problem of using LPG so I have the boiling pot changed for 2 times already. After the third boiling pot is stalled…engine seems to be working well at the garage. So I drove home. However next morning…once I start the engine for 5 to 10 mins.. I switch from gasoline to LPG. The rpm is quite low at about 550 to 700 for about 5 mins then stable at 750rpm both with and without air-con working. But when I used it for another 25 mins….rpm drop to 600rpm. And the engine stop once I press the pedal. I stop the engine for 2 hours…then start engine again and tune it so that the rpm is stable at 750 on both with and without air-con. However…after running the engine for another 30 mins…same things happen again….engine stops once I press pedal. So I tune it RIGHT AT THE SPOT…I have to lower amount of LPG in order to let it run smooth….seem like too much gas. However the engine does not run smooth next morning when I switch it to LPG….the rpm is very low at 500rpm…seems like not enough gas(my guess). Please kindly advise if this is caused by the boiling pot(not sure how it is called) again. Is it the problem of the boiling pot again? Please kindly advise krub.
Thank you very much. Have a nice day krub.
Have LPG system installed on both cars. Use all new parts. No problem on acceleration.
1-เกิดเพราะตั้งคาร์บิวเรเตอร์ไม่ดี โดยเฉพาะตรงขาเตะคันเร่ง เมื่อชุดชดเชยรอบทำงาน แต่ตอนใช้ก๊าซแล้ว ไม่มีตัวช่วย ก็อาจจะเป็นได้บ้าง
2-น่าจะลองเปลี่ยนขนาดตัว Mixer ดูก่อนครับ ขนาดอาจจะไม่เหมาะกับความจุเครื่องยนต์ของคุณ และอาจจะไม่เหมาะกับอัตราสิ้นเปลืองปกติ ในการใช้ก๊าซก็ได้-ธเนศร์