FAQ |
Members List |
Social Groups |
Calendar |
Search |
Today's Posts |
#1
|
||||
|
||||
Plugs
Im wondering what others think about the way these plugs are burning.
Number 4 seems rich but what really bothers me is the strap is not showing any timing mark like the other 3.. Using E85 for fuel... Has anyone here ever had this happen before with there plugs?
__________________
My Half AN Injun..... |
#2
|
||||
|
||||
There's a couple of good reads for you. Someone on another form posted info also.
https://www.hotrod.com/articles/spar...eave-hp-table/ https://www.dragstuff.com/techarticl...ark-plugs.html https://www.onallcylinders.com/2012/...r-spark-plugs/ Ya I can see #4 doesn't even appear to be firing. Try a timing light on #4 wire to see if it's firing. |
#3
|
||||
|
||||
Try a new set and see if #4 still looks like that one?
Doesn't seem to be firing correctly. Check that cylinder for problems? (plug wire, compression, valves, etc) Might do a vacuum reading also?
__________________
John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
#4
|
||||
|
||||
Quote:
__________________
My Half AN Injun..... |
#5
|
||||
|
||||
Quote:
I did a leak down and compression test . Both were good. I have a vacuum gage on the column and seems ok . Im going to swap plugs and see if it moves the problem or 4 stays bad. Im glad you at least agree that theres someting going on here. Hopefully its just a bad plug..
__________________
My Half AN Injun..... |
#6
|
||||
|
||||
Only 2 runs?
Are these drag race runs or street type driving? Need to do a full throttle pass then shut off. Idling will make the readings ineffective basically. #4 looks like it has thousand miles on it. (jk )
__________________
John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
#7
|
||||
|
||||
Quote:
I know you're right about shut it right off. But if you look at the other 3 number 4 is just way too far off . Something is going on ..
__________________
My Half AN Injun..... |
#8
|
||||
|
||||
If the problem does NOT move with the plug, maybe swap the injector for that cylinder with another.
__________________
'65 Tempest 467 3650# 11.30@120.31 |
#9
|
||||
|
||||
Quote:
Thanks scott..
__________________
My Half AN Injun..... |
Reply |
|
|