Notices
Series I Trouble Shooting This is the place to learn more about or discuss any issues you're having with your RX-8

Spark Plug Analysis

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old 05-18-2014, 11:54 AM
  #1  
Go fast, do it again
Thread Starter
 
boaco183's Avatar
 
Join Date: Feb 2011
Location: Concord
Posts: 40
Likes: 0
Received 0 Likes on 0 Posts
Spark Plug Analysis

Hello all, I replaced my coils, wires and plugs and I tried to diagnose my plugs. I looked online to see what the conditions of the plugs are in. The only info I was able to find was that my plugs are either normal, worn, or fouled. So I thought I would turn to the community to get an experts advice. Any useful info is highly appreciated.

[IMG][/IMG]
Old 05-18-2014, 12:25 PM
  #2  
wcs
no agenda
iTrader: (2)
 
wcs's Avatar
 
Join Date: Feb 2005
Location: Ontario
Posts: 5,210
Received 62 Likes on 54 Posts
Look pretty normal to me.
Maybe a bit red'ish .. would expect to see a bit lighter in colour.

Hard to say with camera .. and exposure and stuff
Old 05-19-2014, 03:09 AM
  #3  
No respecter of malarkey
iTrader: (25)
 
TeamRX8's Avatar
 
Join Date: Apr 2005
Posts: 26,719
Received 2,006 Likes on 1,635 Posts
the typical analysis is not really valid on a rotary engine since they inherently run dirtier than a reciprocating piston engine
Old 05-19-2014, 08:35 AM
  #4  
Registered
iTrader: (1)
 
blckninja's Avatar
 
Join Date: Dec 2011
Location: Dakota del Norte
Posts: 325
Received 0 Likes on 0 Posts
Can't exactly tell just by looking at them if they're good or not. Use a multimeter (?) to check if they're good or not.
Old 05-19-2014, 09:36 AM
  #5  
Modulated Moderator
iTrader: (3)
 
dannobre's Avatar
 
Join Date: Feb 2004
Location: Smallville
Posts: 13,718
Received 334 Likes on 289 Posts
Look OK...can't see the electrode tip on the second plug...but if it looks the same as the others your coils all are firing.

The plugs look typical of rotary plugs...they aren't oil or fuel fouled

Gaps look big...so they are worn out
Old 05-20-2014, 12:19 AM
  #6  
No respecter of malarkey
iTrader: (25)
 
TeamRX8's Avatar
 
Join Date: Apr 2005
Posts: 26,719
Received 2,006 Likes on 1,635 Posts
the proper OE gap is large & wide by most standards, just installed a new set today on a RX8

standard: 0.046" - 0.049"

Max allowed leading: 0.059"
Max allowed trailing: 0.055"
Old 05-21-2014, 08:38 PM
  #7  
Go fast, do it again
Thread Starter
 
boaco183's Avatar
 
Join Date: Feb 2011
Location: Concord
Posts: 40
Likes: 0
Received 0 Likes on 0 Posts
thanks for the info
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
RevMeHarder
New Member Forum
6
08-16-2023 06:23 PM
DylanForbes
RX-8 Discussion
25
10-31-2017 05:47 PM
iphil
Series I Trouble Shooting
3
09-21-2015 10:49 PM
Forevermore
Series I Trouble Shooting
6
09-20-2015 01:04 PM
Vedivan1
Series I Trouble Shooting
2
09-18-2015 12:39 PM



You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: Spark Plug Analysis



All times are GMT -5. The time now is 05:13 AM.