Fordmods Logo

Spark Plug for Ford Falcon AU Forte 4.0L i6 (DUEL FUEL) 

 

Page 1 of 1 [ 12 posts ] 

 
 Post subject: Spark Plug for Ford Falcon AU Forte 4.0L i6 (DUEL FUEL)
Posted: Sun Apr 19, 2009 10:52 am 
Getting Side Ways
Offline
User avatar

Posts: 449

Joined: 15th Apr 2009

Ride: Falcon AU

Location: Perth
WA, Australia

I just took off the spark plugs on my Ford Falcon AU Forte 4.0L i6 (Duel fuel - LPG/Petrol)

The spark plugs are: Bosch Super plus WR9LCX + Germany 790 +28

I plan to keep my car and make it last as long as possible, i'm not a racer, just a normal day to day driver - but I frequently alternate between LPG and Unleaded petrol.

Two Questions:

1. Are these any good for my car or can someone recommend something better?

2. Also, what gap should I use? the repair manual says:

4.0L 1.0 - 1.1 mm
4.0L Gas 0.9 mm

The problem is I use both LPG (Gas) and Unleaded! :shock:

So i'm not sure whether I should use 0.9mm or 1.0-1.1mm

 

_________________

What do you call a Hyundai with dual exhausts?

A wheelbarrow.

Top
 Profile  
 
 
 Post subject: Re: Spark Plug for Ford Falcon AU Forte 4.0L i6 (DUEL FUEL)
Posted: Sun Apr 19, 2009 11:03 am 
Technical Contributor
Offline
User avatar

Age: 38

Posts: 4093

Joined: 20th Mar 2005

Gallery: 2 images

Ride: 2.0 Turbo VW

Power: 142 rwkw

Location: Seaford State:
VIC, Australia

The plug you have is an equivalent of NGK's BRE527-11

This is the most popular plug for for E-series that are on Gas.

They're a cold plug ideal for gas.


Just gap it at .9

That way when you decided to replace them you can see how they're burning and gap accordingly.

As for buying new plugs, every AU I've pulled apart have used Iridium plugs.

Gimmie a sec, I'll go to the shed and pull a plug out of an AU2 motor.

 

_________________

Carefree, we may not be number one, but we're up there.

Top
 Profile  
 
 
 Post subject: Re: Spark Plug for Ford Falcon AU Forte 4.0L i6 (DUEL FUEL)
Posted: Sun Apr 19, 2009 11:15 am 
Technical Contributor
Offline
User avatar

Age: 38

Posts: 4093

Joined: 20th Mar 2005

Gallery: 2 images

Ride: 2.0 Turbo VW

Power: 142 rwkw

Location: Seaford State:
VIC, Australia

Ok, Mumerous times I've removed Denso Iridium VW16RA13 plugs from AU2's and yes, they're gapped at 1.3mm.

No idea why the large gap, and it even say's on the web site to use that size with these particular plugs.

also, I've found Ford and Holden service replace plugs with denso, NFI why, there must be a reason.

 

_________________

Carefree, we may not be number one, but we're up there.

Top
 Profile  
 
 
 Post subject: Re: Spark Plug for Ford Falcon AU Forte 4.0L i6 (DUEL FUEL)
Posted: Sun Apr 19, 2009 11:38 am 
Getting Side Ways
Offline
User avatar

Posts: 449

Joined: 15th Apr 2009

Ride: Falcon AU

Location: Perth
WA, Australia

1.3 mm? wow that's a large gap

 

_________________

What do you call a Hyundai with dual exhausts?

A wheelbarrow.

Top
 Profile  
 
 
 Post subject: Re: Spark Plug for Ford Falcon AU Forte 4.0L i6 (DUEL FUEL)
Posted: Fri May 22, 2009 5:03 pm 
Oompa Loompa
Offline
User avatar

Age: 35

Posts: 24

Joined: 22nd May 2009

Ride: Ford falcon AU2 6cyl auto

Location: Adelaide
SA, Australia

the larger gap is for petrol, the smaller for gas. gas needs a stronger spark to ignte so i have been told. my 2001 au2 is on gas and having trouble starting and its believed new plugs of .9 will fix this problem
Top
 Profile  
 
 
 Post subject: Re: Spark Plug for Ford Falcon AU Forte 4.0L i6 (DUEL FUEL)
Posted: Fri May 22, 2009 6:27 pm 
Getting Side Ways
Offline

Posts: 2410

Joined: 4th Sep 2006

Location: Sydney
NSW, Australia

isent plug gap for lpg sopposed to be 0.8???

 

_________________

Wanted Either Capri/Cortina/XY/XW/XR/XT with tough V8 stroker engine, auto, 9inch, upgraded brakes etc[/SIZE][/size][/color]

Top
 Profile  
 
 
 Post subject: Re: Spark Plug for Ford Falcon AU Forte 4.0L i6 (DUEL FUEL)
Posted: Fri May 22, 2009 6:29 pm 
Oompa Loompa
Offline
User avatar

Age: 35

Posts: 24

Joined: 22nd May 2009

Ride: Ford falcon AU2 6cyl auto

Location: Adelaide
SA, Australia

have a look here

http://ignitioninfo.com/?utm_source=For ... .com_Spark

will tell you all about it.
Top
 Profile  
 
 
 Post subject: Re: Spark Plug for Ford Falcon AU Forte 4.0L i6 (DUEL FUEL)
Posted: Sat May 23, 2009 7:41 pm 
Getting Side Ways
Offline

Posts: 6449

Joined: 11th Nov 2004

Krytox wrote:

also, I've found Ford and Holden service replace plugs with denso, NFI why, there must be a reason.


because denso make a good product.

motorcaft plugs sold through ford are champions, motorcraft premium sold through ford are denso.

proton, toyota, mitsubishi all use denso. proton and toyota have them branded with there own name.

the AU2 uses a 1.3mm gap for petrol because it has a better coil. the AU1 still used the oul EF style coil. anyone that fits an AU2 coil to any of the early cars should run the bigger gap.

 

_________________

PERMANENTLY BANNED

Top
 Profile  
 
 
 Post subject: Re: Spark Plug for Ford Falcon AU Forte 4.0L i6 (DUEL FUEL)
Posted: Sat May 23, 2009 9:35 pm 
Getting Side Ways
Offline

Posts: 2410

Joined: 4th Sep 2006

Location: Sydney
NSW, Australia

Id it a worth wild exercise to fit a AU2 coil in a EF???

 

_________________

Wanted Either Capri/Cortina/XY/XW/XR/XT with tough V8 stroker engine, auto, 9inch, upgraded brakes etc[/SIZE][/size][/color]

Top
 Profile  
 
 
 Post subject: Re: Spark Plug for Ford Falcon AU Forte 4.0L i6 (DUEL FUEL)
Posted: Sun May 24, 2009 9:22 am 
Getting Side Ways
Offline

Posts: 6449

Joined: 11th Nov 2004

MICKYYYY wrote:
Id it a worth wild exercise to fit a AU2 coil in a EF???



yes.

 

_________________

PERMANENTLY BANNED

Top
 Profile  
 
 
 Post subject: Re: Spark Plug for Ford Falcon AU Forte 4.0L i6 (DUEL FUEL)
Posted: Sun May 24, 2009 9:56 am 
Getting Side Ways
Offline
User avatar

Age: 49

Posts: 1634

Joined: 8th Jul 2007

Gallery: 21 images

Ride: EL F100 CAPRI XR EF

Power: 234 rwkw

Location: brighton
SA, Australia

tickford_6 wrote:
MICKYYYY wrote:
Id it a worth wild exercise to fit a AU2 coil in a EF???



yes.


make sure u get a au2 coil plug and transfer it to your ef loom, they are different
Top
 Profile  
 
 
 Post subject: Re: Spark Plug for Ford Falcon AU Forte 4.0L i6 (DUEL FUEL)
Posted: Sun May 24, 2009 3:05 pm 
Getting Side Ways
Offline

Posts: 2410

Joined: 4th Sep 2006

Location: Sydney
NSW, Australia

Awsome im gona look into it

 

_________________

Wanted Either Capri/Cortina/XY/XW/XR/XT with tough V8 stroker engine, auto, 9inch, upgraded brakes etc[/SIZE][/size][/color]

Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 1  [ 12 posts ] 

Who is online

Users browsing this forum: No registered users and 31 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 Thu Dec 14, 2017 10:06 am All times are UTC + 11 hours

 

 

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