From: PinballUK on 24 Feb 2007 15:20 Hi I have a transit 2 litre dohc 1998 s reg with a Tartarini tec 97 system. The problem that has happened now is that it has completely smashed up the air filter box and all the air intake system up to the inlet. It has been backfiring. I have taken it to an lpg place and they say their system cannot read the box, although it should be able to. I have ordered a new air intake system but I am bothered about it happening again. I dont know whether it was blow back pressure that did it or something else but it looked to me as though it might have burnt somewhere. It only seems to backfire when it is getting low on gas and normally when you are going slower and then put your foot down for more power and then it backfires. Is it possible to just replace the faulty unit so it can be read and adjusted? Any help would be greatly appreciated, thanks very much.
From: Dave Griffs on 25 Feb 2007 14:48 "PinballUK" <pinballuk_co_uk(a)yahoo.com> wrote in message news:1172348430.711113.271410(a)v33g2000cwv.googlegroups.com... > Hi > > I have a transit 2 litre dohc 1998 s reg with a Tartarini tec 97 > system. The problem that has happened now is that it has completely > smashed up the air filter box and all the air intake system up to the > inlet. It has been backfiring. I have taken it to an lpg place and > they say their system cannot read the box, although it should be able > to. I have ordered a new air intake system but I am bothered about it > happening again. I dont know whether it was blow back pressure that > did it or something else but it looked to me as though it might have > burnt somewhere. It only seems to backfire when it is getting low on > gas and normally when you are going slower and then put your foot down > for more power and then it backfires. Is it possible to just replace > the faulty unit so it can be read and adjusted? Any help would be > greatly appreciated, thanks very much. > First thing to do is check your ignition system is in good order, check your plugs & HT leads. LPG demends more out of the ignition system, & any weaknesses are a common cause of backfire. Changing the plugs & leads on my previous car cured a backfire fault.
From: Peter on 27 Feb 2007 23:59 >> I have a transit 2 litre dohc 1998 s reg with a Tartarini tec 97 >> system. The problem that has happened now is that it has completely >> smashed up the air filter box and all the air intake system up to the >> inlet. It has been backfiring. I have taken it to an lpg place and >> they say their system cannot read the box, although it should be able >> to. I have ordered a new air intake system but I am bothered about it >> happening again. I dont know whether it was blow back pressure that >> did it or something else but it looked to me as though it might have >> burnt somewhere. It only seems to backfire when it is getting low on >> gas and normally when you are going slower and then put your foot down >> for more power and then it backfires. Is it possible to just replace >> the faulty unit so it can be read and adjusted? Any help would be >> greatly appreciated, thanks very much. >> > > First thing to do is check your ignition system is in good order, check your > plugs & HT leads. LPG demends more out of the ignition system, & any > weaknesses are a common cause of backfire. > Changing the plugs & leads on my previous car cured a backfire fault. You cant avoid backfire 100% in single-point systems. Good ignition system and leads will reduce the backfire risk but not eliminate it. You still need some sort of 'backfire vent' that will let the explosion to vent out without smashing any pieces of the engine... especially if yours is equipped with MAF sensor which is sensitive to these shocks. MAP sensors are usually much more durable. I have Durango with 5.9L engine where intake manifold is like 20L+ in volume... when that thing backfires neighbourhood dogs start barking like crazy. Peter
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