Fordmods Logo

Home » Forums » Fordmods Tech » LPG and Alternative Fuels

LPG backfires on start up sometimes 

 

Page 1 of 1 [ 9 posts ] 

Post New Topic Post Reply  Previous topic Next topic
 
efweapon
 Post subject: LPG backfires on start up sometimes
Posted: Sat Apr 10, 2010 2:32 pm 
Parts Gopher
Offline
User avatar

Age: 41

Posts: 82

Joined: 5th Nov 2004

Gallery: 5 images

Ride: ef fairmont ghia

Location: sunshine
VIC, Australia
Hi guys as the topic suggests the car doesnt like starting sometimes it back fires and blows a plug off that is near the injectors causing a vacuum leak. The car is an ef is there anything that can be done or does anyone know what the problem is. Its been doing it since i got put on gas so its a couple of years now
Top
 Profile  
 
 
89.SVO
 Post subject: Re: LPG backfires on start up sometimes
Posted: Sat Apr 10, 2010 2:37 pm 
Getting Side Ways
Offline
User avatar

Age: 35

Posts: 3382

Joined: 11th Mar 2008

Ride: EA SVO, AU2, Toyota Crown

Location: Bendigo
VIC, Australia
do you use the accelerator when starting?
if so. don't

 

_________________

Daily driver: 2010 Toyota Crown hybrid 3.5L V6 hybrid. 254kw.
Weekend car: AU2 "XR8" 220kw 5L 5 speed. 19" BBS LM . Full exhaust. Lowered on Kings and Koni's. 13.8@97mph
Fast car: EA SVO AU motor. Built BTR. SDE 3500 stall. 76mm turbo. On E85. approx 425rwkw. 10.8@126mph
Top
 Profile  
 
 
efweapon
 Post subject: Re: LPG backfires on start up sometimes
Posted: Sat Apr 10, 2010 3:06 pm 
Parts Gopher
Offline
User avatar

Age: 41

Posts: 82

Joined: 5th Nov 2004

Gallery: 5 images

Ride: ef fairmont ghia

Location: sunshine
VIC, Australia
there is no accelaration i dont touch anything except the ignition i let it prime as well so it doesnt do it as often
Top
 Profile  
 
 
ToranaGuy
 Post subject: Re: LPG backfires on start up sometimes
Posted: Sat Apr 10, 2010 3:21 pm 
Getting Side Ways
Offline
User avatar

Age: 42

Posts: 4125

Joined: 8th Dec 2004

Gallery: 25 images

Ride: EB2 Ghia,Mighty Boy,Eb1 Xr8 5spd

Location: ** In the Shed! **
VIC, Australia
There is a few things that will cause a LPG car to backfire. Ignition system is the first place I'd be checking out.

Cheers

ToranaGuy

 

_________________

I am the ToranaGuy!|74 Lh Torana Turbo|78 Hz PanelVan|86 Mighty Boy Ute|93 EB2 Ghia,GT Mockup,5spd,LPGI,Full Leather|2 x EB Xr8 5spd's|FS [VIC]: Wrecking - Eb XR8 - Parts available |Build Thread|Ebay Items - Ford Parts|
Top
 Profile  
 
 
89.SVO
 Post subject: Re: LPG backfires on start up sometimes
Posted: Sat Apr 10, 2010 3:35 pm 
Getting Side Ways
Offline
User avatar

Age: 35

Posts: 3382

Joined: 11th Mar 2008

Ride: EA SVO, AU2, Toyota Crown

Location: Bendigo
VIC, Australia
how old are the plugs, leads, cap and rotor button? no other small vacuum leaks?

 

_________________

Daily driver: 2010 Toyota Crown hybrid 3.5L V6 hybrid. 254kw.
Weekend car: AU2 "XR8" 220kw 5L 5 speed. 19" BBS LM . Full exhaust. Lowered on Kings and Koni's. 13.8@97mph
Fast car: EA SVO AU motor. Built BTR. SDE 3500 stall. 76mm turbo. On E85. approx 425rwkw. 10.8@126mph
Top
 Profile  
 
 
efweapon
 Post subject: Re: LPG backfires on start up sometimes
Posted: Sun Apr 11, 2010 2:45 pm 
Parts Gopher
Offline
User avatar

Age: 41

Posts: 82

Joined: 5th Nov 2004

Gallery: 5 images

Ride: ef fairmont ghia

Location: sunshine
VIC, Australia
everything has been changed and it still backfires.

How do i check the ignition system for faults???
Top
 Profile  
 
 
89.SVO
 Post subject: Re: LPG backfires on start up sometimes
Posted: Sun Apr 11, 2010 2:54 pm 
Getting Side Ways
Offline
User avatar

Age: 35

Posts: 3382

Joined: 11th Mar 2008

Ride: EA SVO, AU2, Toyota Crown

Location: Bendigo
VIC, Australia
well if you say everything has been changed, it should be fine. were proper gas temperature and electrode plugs installed? were they gapped correctly?

whats the timing set at?

 

_________________

Daily driver: 2010 Toyota Crown hybrid 3.5L V6 hybrid. 254kw.
Weekend car: AU2 "XR8" 220kw 5L 5 speed. 19" BBS LM . Full exhaust. Lowered on Kings and Koni's. 13.8@97mph
Fast car: EA SVO AU motor. Built BTR. SDE 3500 stall. 76mm turbo. On E85. approx 425rwkw. 10.8@126mph
Top
 Profile  
 
 
ToranaGuy
 Post subject: Re: LPG backfires on start up sometimes
Posted: Sun Apr 11, 2010 4:11 pm 
Getting Side Ways
Offline
User avatar

Age: 42

Posts: 4125

Joined: 8th Dec 2004

Gallery: 25 images

Ride: EB2 Ghia,Mighty Boy,Eb1 Xr8 5spd

Location: ** In the Shed! **
VIC, Australia
I'd suggest a spark plug gap or 0.9 instead of the factory 1.0-1.1mm spec.

Cheers

ToranaGuy

 

_________________

I am the ToranaGuy!|74 Lh Torana Turbo|78 Hz PanelVan|86 Mighty Boy Ute|93 EB2 Ghia,GT Mockup,5spd,LPGI,Full Leather|2 x EB Xr8 5spd's|FS [VIC]: Wrecking - Eb XR8 - Parts available |Build Thread|Ebay Items - Ford Parts|
Top
 Profile  
 
 
Mudguard32
 Post subject: Re: LPG backfires on start up sometimes
Posted: Tue May 11, 2010 11:06 pm 
Fordmods Newbie
Offline

Age: 50

Posts: 2

Joined: 11th May 2010

Ride: BA XR6

Location: Melbourne
VIC, Australia
I have had similar problems with an EB, it also would back fire and stall, jsut what you want when you are making a right hand turn (grab nuetral and start the bugger back up). I took it to a number of places and none of them fixed it. I found a mechanic that knew what they were doing and made the converter vertical again and it never missed a beat since. Good gas guys are hard to find. keep Ford service engineers away from them.

Cheers Mudguard
Top
 Profile  
 
Display posts from previous:
Sort by  
Post New Topic Reply
 Page 1 of 1  [ 9 posts ] 
Jump to:  

Home » Forums » Fordmods Tech » LPG and Alternative Fuels

Who is online

Users browsing this forum: No registered users and 21 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Fri Nov 22, 2024 3:22 pm All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names