Need A Lpg Tuner In The Campbelltown Area

[4runner]

As the topic states, can anyone recommend a mechanic that is good with LPG systems. The BB Chev in the race-car transporter is having problems with occasional back-fires through the mixer/air cleaner when you get off the throttle then back on it again.

Any comments/suggestions welcomed.

[BFHOON]

I cant suggest any one but.

if u open the mixer and clean out all the powder it could be good as new.

[AceofSpades]

Just a thought.

Lpg needs a good ignition system, maybe check the leads plugs and etc as well as the timing to make sure that they arent worn out.

I've had a car with a bad lead do that ( 351 with 425 impco )

[4runner]

  AceofSpades said:

Just a thought.

Lpg needs a good ignition system, maybe check the leads plugs and etc as well as the timing to make sure that they arent worn out.

I've had a car with a bad lead do that ( 351 with 425 impco )

←

Yeah, that was my initial thought too - that the leads may be crossfiring.

I have recently added a new set of spiral wound plug leads (supposedly for LPG vehicles) that made no difference. The motor is running a regraphed HEI dissy.

My next step would be to get a LPG guru who can check the mixer to make sure it is not running too lean.

Thanks for your input

[AceofSpades]

A tightarse way to see if its very rich or lean is to get it tdling and go to the tailpipe. if it makes your eyes water very quickly, its rich. if its got hardly any smell its probably lean.

What type of lpg system are you running?