Home Discussion Forum Tech Articles Other Articles Featured Rides Readers Rides Classifieds Shirts & Decals Parts Store

Ford Ranger Discussion Forum

Off-Road Truck Of The Month

'PlumCrazy'
October 2014 OTOTM

Mini Truck Of The Month

'Ted R.'
October 2014 MTOTM
 

Go Back   The Ranger Station Forums > Engine & Transmission Forums > 4-bangers > 4-Cylinder (2000 & Older)

Notices

Reply
 
Thread Tools Display Modes
Old 03-20-2008, 08:02 PM   #1
fyrebug72
New Member
 
Join Date: Mar 2008
Posts: 6
Rep Power: 0
fyrebug72 is on a distinguished road
Default 8 plugs on a 4 cylinder!?

Can anyone tell me why I have 8 spark plugs on my '94 Ranger 2.3l engine!? I'm not a big mechanic type but have benn around motors a bit and havnt seen this before.
fyrebug72 is offline   Reply With Quote
Forum Notices (Not shown to 'Premium Members')

 Reminder:

 We're looking for participants to help move our banner from Alaska to Florida: Click HERE.

 Click HERE to see the banner map.

 Want to become a Premium Member & not see these notices? Click HERE.

Want your truck considered for Truck Of The Month? Click HERE.

Don't forget to vote!

Old 03-20-2008, 08:18 PM   #2
Sevensecondsuv
Member
 
Sevensecondsuv's Avatar
 
Join Date: Aug 2007
Location: Rockford, IL
Posts: 1,123
Vehicle Year: 1989,1990,1992
Vehicle Make: Ford
Vehicle Model: F150, Ranger, Explorer
I use this vehicle for: Towing, Speeding, DD/4x4ing
Rep Power: 17
Sevensecondsuv is on a distinguished road
Default

Yep, they're pretty unusual. Mostly it's just to meet emissions requirements. Otherwise it's fun to brag about how your "4-banger ranger has 2 plugs per cylinder, just like NASCAR" lol
__________________
2011 Ford Ranger XLT Ext Cab 2.3L 5-spd - DD
1992 Explorer Sport 4wd 5-spd
1995 Ford F-150 Custom 4wd 4.9L ZF5 coming soon!
2005 Lincoln LS 3.0L V6 - Wife's
Past: 1990 Ranger 2wd 2.3L Turbo
Sevensecondsuv is offline   Reply With Quote
Old 03-20-2008, 08:28 PM   #3
Mutant Pony
Member

 
Mutant Pony's Avatar
 
Join Date: Aug 2007
Location: Hersey, Mi
Posts: 1,754
Vehicle Year: 1977
Vehicle Make: Ford
Vehicle Model: Pinto
I use this vehicle for: Mud racing/trails
Rep Power: 18
Mutant Pony will become famous soon enough
Default

I have a '73 Eltigre (snowmobile) 400cc free air engine. It is a twin cylinder but, It has four plugs. It is fun messing with people who aren't very well educated, They often believe that it is a 4cyl.
My point is that dual plugs have been used for a long time, Just not often in the automotive industry.

1: if you lose spark on one plug the other will still fire
2: you can set the timing slightly different so that you have a longer spark duration
3: You nearly eliminate the possibilty of detonation
__________________
'84 Ranger, 351c,C6,208,EBsas."DeRanged Mudder"
'86 Ranger, 3.0swap,coil rear suspension"Black Frog"
Mutant Pony is offline   Reply With Quote
Old 03-20-2008, 08:32 PM   #4
pillen140
Member
 
pillen140's Avatar
 
Join Date: Jan 2008
Location: winston-salem, NC
Posts: 3,273
Vehicle Year: 1995
Vehicle Make: ford
Vehicle Model: ranger
I use this vehicle for: dd, weekend off roader. and annoying my girlfriend
Rep Power: 31
pillen140 has much to be proud ofpillen140 has much to be proud ofpillen140 has much to be proud ofpillen140 has much to be proud ofpillen140 has much to be proud ofpillen140 has much to be proud ofpillen140 has much to be proud ofpillen140 has much to be proud ofpillen140 has much to be proud of
Default

i thought the two plugs were to give it more equal combustion, for emissions, fuel mileage and reliablility
pillen140 is offline   Reply With Quote
Old 03-20-2008, 08:36 PM   #5
Joshs93four-oh
Member
 
Joshs93four-oh's Avatar
 
Join Date: Feb 2008
Location: Fremont, Ohio
Posts: 114
Vehicle Year: 1993
Vehicle Make: Ford
Vehicle Model: Ranger xlt 2wd short cab short bed
I use this vehicle for: Daily Driver
Rep Power: 14
Joshs93four-oh is on a distinguished road
Default

There are may functions of this system most of which are for emissions purposes. One interesting function is that one bank fires on the combustion stroke, the other on the exhaust stroke if I am not mistaken...
________
Y8950

Last edited by Joshs93four-oh; 03-04-2011 at 02:47 AM.
Joshs93four-oh is offline   Reply With Quote
Old 03-20-2008, 10:09 PM   #6
fyrebug72
New Member
 
Join Date: Mar 2008
Posts: 6
Rep Power: 0
fyrebug72 is on a distinguished road
Default

Thanks for the replies! Solves one problem!
fyrebug72 is offline   Reply With Quote
Old 03-21-2008, 11:02 PM   #7
shadetree
Member
 
shadetree's Avatar
 
Join Date: Sep 2007
Location: East Texas
Posts: 1,799
Vehicle Year: 1994
Vehicle Make: Explorer Sport
I use this vehicle for: Work
Rep Power: 18
shadetree is on a distinguished road
Default

Quote:
Originally Posted by Joshs93four-oh View Post
There are may functions of this system most of which are for emissions purposes. One interesting function is that one bank fires on the combustion stroke, the other on the exhaust stroke if I am not mistaken...
Close. Both plugs in each cylinder fire at the same time, not each bank of plugs. On the power stroke, two plugs fire, and on the exhaust stroke the plugs fire again with much less voltage. This is called "waste spark," and basically is just a ground for the secondary system due to the low resistance in the circuit.

This system is not unique to Ford. The current Dodge hemi's use this system.

I have not heard of it being used in NASCAR. shady

Last edited by shadetree; 03-23-2008 at 10:15 AM.
shadetree is offline   Reply With Quote
Old 03-22-2008, 12:04 AM   #8
fordnut71
New Member
 
Join Date: Feb 2008
Posts: 6
Vehicle Year: 1997 1994
Vehicle Make: ford ford
Vehicle Model: 2.3 ranger 4.0 explorer
Rep Power: 0
fordnut71 is on a distinguished road
Default

datsun use to have a dual plug 4cyl in there trucks in the 80s
fordnut71 is offline   Reply With Quote
Old 03-22-2008, 03:00 AM   #9
94 lngbd
Member
 
94 lngbd's Avatar
 
Join Date: Nov 2007
Location: Lakewood,Wa
Posts: 861
Vehicle Year: 1994
Vehicle Make: ford
Vehicle Model: ranger xlt long bed
I use this vehicle for: hauling ,camping,towing ,fun
Rep Power: 17
94 lngbd will become famous soon enough94 lngbd will become famous soon enough
Default

Nissan started doing it in 81 & I think they continued into the early 90's
94 lngbd is offline   Reply With Quote
Old 03-22-2008, 10:37 AM   #10
Mutant Pony
Member

 
Mutant Pony's Avatar
 
Join Date: Aug 2007
Location: Hersey, Mi
Posts: 1,754
Vehicle Year: 1977
Vehicle Make: Ford
Vehicle Model: Pinto
I use this vehicle for: Mud racing/trails
Rep Power: 18
Mutant Pony will become famous soon enough
Default

In the late '80s top fuel dragsters started using dual plugs. Just think, Your Ranger has something in common with the fastest internal combustion engine in the world!!!
__________________
'84 Ranger, 351c,C6,208,EBsas."DeRanged Mudder"
'86 Ranger, 3.0swap,coil rear suspension"Black Frog"
Mutant Pony is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump




All times are GMT -5. The time now is 08:44 AM.




1999-2014 / 959 Media LLC / All Rights Reserved