EL Falcon gas backfire problem.
XR8 Sprintless
couple of months backfired blowing apart the air cleaner. Any ideas on
what could be causing it and how to stop it happening. She cannot tell
me what gas system it is. It happened the other day when she went to
start the car. It's an aftermarket system.
us...@domain.invalid
usual stuff
plugs leads and converter IF the timing and dizzy are right
it can be useful to cover a hole in the cleaner housing with some flat
coke can taped on so it blows and not the whole thing
Noddy
"XR8 Sprintless" <xr8_s...@hotmail.com> wrote in message
news:02bdf767$0$25303$c3e...@news.astraweb.com...
The first thing to do is ensure that she's attempting to start the car
without any throttle being used, as that's often asking for trouble.
99% of all gas problems relate to the ignition system, and it's critical
that the car has a good set of ignition leads. Cross firing is the biggest
culprit, which on an engine running petrol generally isn't an issue but when
the entire intake plumbing is full of flammable gas it's a real problem.
The EF/EL range are particularly well suited to lpg use, but that's not to
say they can't have issues. I'd be making sure the leads and coil are in
good nick (if it has a coil) or the Dizzy components are in order if it has
a dizzy.
--
Regards,
Noddy.
Noddy
<us...@domain.invalid> wrote in message
news:h8l1cp$oup$2...@news1.mynetnews.org...
> Assuming it is an el , the ef was group fire and not so good on gas
There weren't any specific problems relating to the EF that prevented them
from running on gas and doing it pretty well. They were a *very* popular cab
in their day and the majority of them ran on lpg without any issues.
--
Regards,
Noddy.
XR8 Sprintless
> "XR8 Sprintless" <xr8_s...@hotmail.com> wrote in message
> news:02bdf767$0$25303$c3e...@news.astraweb.com...
>
>> Sister has an EL falcon running on gas which has twice in the last couple
>> of months backfired blowing apart the air cleaner. Any ideas on what could
>> be causing it and how to stop it happening. She cannot tell me what gas
>> system it is. It happened the other day when she went to start the car.
>> It's an aftermarket system.
>
> The first thing to do is ensure that she's attempting to start the car
> without any throttle being used, as that's often asking for trouble.
>
throttle when it backfired
> 99% of all gas problems relate to the ignition system, and it's critical
> that the car has a good set of ignition leads. Cross firing is the biggest
> culprit, which on an engine running petrol generally isn't an issue but when
> the entire intake plumbing is full of flammable gas it's a real problem.
>
I'll get onto Neil and Bob and order her a set of leads.
> The EF/EL range are particularly well suited to lpg use, but that's not to
> say they can't have issues. I'd be making sure the leads and coil are in
> good nick (if it has a coil) or the Dizzy components are in order if it has
> a dizzy.
>
Thanks for the tips.
Regards
XR8 Sprintless
Griff
"XR8 Sprintless" <xr8_s...@hotmail.com> wrote in message
news:02bdf767$0$25303$c3e...@news.astraweb.com...
Like the others have said, good quality leads are a must. Also most ef and
el models will backfire with any application on accelerator when starting
like Noddy said. The Impco systems I've worked on had stickers on the
windscreen warning of this. Tho main thing I would be checking is the base
ignition timing. Is a simple process to put ecu into the mode to set the
timing.
Griff
George W Frost
"XR8 Sprintless" <xr8_s...@hotmail.com> wrote in message
news:02bdf767$0$25303$c3e...@news.astraweb.com...
I had the same problem with the EF and after blowing apart three inlet
boxes, I was such a regular visitor to the Ford wrecker, that he started
giving me a discount on any parts,
I replaced the leads, injectors and whatever elese I was told to do to stop
the backfire.
I had no trouble during the warmer weather and after it had been driven for
a few kilometres, but first thing in the morning, it would always backfire
as soon as I went up the back street.
As Noddy said, make sure the throttle isn't used during starting, else it
will certainly backfire before you get out the driveway.
I was told that it had something to do with the valves having worn stems and
would need a good head job to rectify it, but I sold the EF and bought
another car.
Maybe if the car was left running for about five minutes before taking off
might solve the problem, maybe not.
Oz...@crackerbox-palace.com
Put a set of plugs in it!
OzOne of the three twins
I welcome you to Crackerbox Palace.
veritas
Simple - keep ones foot off the throttle when starting and/or use light
throttle advancement at other times.
Clocky
Cheap shit gas systems can cause problems down the line but in the majority
of cases it's a simple case of having a sound ignition system which includes
replacing the plugs and likely the leads (esp. on those Fords as the
ignition system is prone to deterioration).
Base timing shouldn't move but should be checked just in case and don't use
the throttle when you start the car.
Consider fitting some kind of relief system that pops out in case of
backfire to save your airbox from being blown apart.
Neil Gerace
> Simple - keep ones foot off the throttle when starting and/or use light
> throttle advancement at other times.
Even more simple: remove the air cleaner :)
Chubz
"XR8 Sprintless" <xr8_s...@hotmail.com> wrote in message
news:02bdf767$0$25303$c3e...@news.astraweb.com...
Many years ago I had an EF series 2 v8 on LPG, I think it backfired 3 times
during the 3 years I owned it.
It was the type that cranked on petrol then switched over to LPG as soon as
it was running, (if left in that mode) all 3 occasions it happened when it
hadn't quite started fully and switched over to LPG too soon. It blew apart
the air box on all 3 occasions.
I put my troubles down to user error, I should of not been so lazy and
switched over to petrol manually once the engine was at running temperature
etc.. If it was done in this way, I wouldn't of experienced a single back
fire at all.
Alpha_77DX
"Paul Saccani" <sac...@omen.net.au> wrote in message
news:35qsa513hroe664h0...@4ax.com...
> would pop off rather than break, if that's any help.
When I replaced my first airbox, the dealer supplied "LPG" springs for the
cover. It didn't help, the box still blew appart on the next backfire, and
the springs went everywhere. New plugs and HT leads helped. But the motor
did the last 100k of it's life with no airbox. :)