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.

"PinballUK" wrote in message
oups.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.

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