spark plug problems
Thread Starter
|
New User
Joined: May 2005
Posts: 16
Likes: 0
From: Northern Indiana
spark plug problems
Alright, i know it has been awhile since my last post, so anyone who remembers my past problems might remember me.
Ok my past problem was i thought i didnt have a cylinder firing. well it was 2, cylinder #2 and #3, hey where bouth really gummed up. but my question is now about cylinders 1,4,5, and 6. they where yellow and ashy, i beleave that means its running too lean right? if thats so, how can i adjust the fuel flow? (i'll give specs of the engine below) i have replaced fuel filters, and some of the fuel lines. All seems to flow nicely, any help will be greatly appretated. (sorry about spelling) also, dose anyone know where i can find a report sheet of the 4.9 on the dyno?
1992
4.9 300cdi
Inline 6
EFI
150k miles
K&N filter
Mostly all stock
-thanks
-Mike :0)
Ok my past problem was i thought i didnt have a cylinder firing. well it was 2, cylinder #2 and #3, hey where bouth really gummed up. but my question is now about cylinders 1,4,5, and 6. they where yellow and ashy, i beleave that means its running too lean right? if thats so, how can i adjust the fuel flow? (i'll give specs of the engine below) i have replaced fuel filters, and some of the fuel lines. All seems to flow nicely, any help will be greatly appretated. (sorry about spelling) also, dose anyone know where i can find a report sheet of the 4.9 on the dyno?
1992
4.9 300cdi
Inline 6
EFI
150k miles
K&N filter
Mostly all stock
-thanks
-Mike :0)
Postmaster
Joined: May 2002
Posts: 3,241
Likes: 3
From: Broken Arrow, OK
An ashy substance on the plugs is usually oil, but the fact that it's yellow is a little odd. There are a lot of fuel additives in use that can do strange things to plugs as well.
For a dyno sheet, do a search. I've posted several.
For a dyno sheet, do a search. I've posted several.
Thread
Thread Starter
Forum
Replies
Last Post
perry b
1987 - 1996 F150 & Larger F-Series Trucks
20
Sep 14, 2016 08:22 PM
Stratifiedjoe
Ford Inline Six, 200, 250, 4.9L / 300
2
Jun 22, 2016 01:06 AM
Stratifiedjoe
1987 - 1996 F150 & Larger F-Series Trucks
12
Jun 6, 2016 09:29 PM
wojtek9321
1997 - 2006 Expedition & Navigator
2
Jan 22, 2011 11:56 AM
