Glowing headers
Melting Slicks
Joined: May 2006
Posts: 3,303
Likes: 14
From: Lynn MA
ok, lets get back to the basics...is the distributor in right? can you post pics here so we can all pitch in and help you figure it out....we need to make sure fuel, timing etc is right
glowing headers can be both from a lean or a rich condition, but what concerns me is one cylinder showing the glow...I am thinking maybe a lean condition coupled with retarded timing..(basing this just on what we know so far)
Tim
glowing headers can be both from a lean or a rich condition, but what concerns me is one cylinder showing the glow...I am thinking maybe a lean condition coupled with retarded timing..(basing this just on what we know so far)
Tim
Drifting
Joined: Aug 2009
Posts: 1,346
Likes: 160
From: new iberia la
ok, lets get back to the basics...is the distributor in right? can you post pics here so we can all pitch in and help you figure it out....we need to make sure fuel, timing etc is right
glowing headers can be both from a lean or a rich condition, but what concerns me is one cylinder showing the glow...I am thinking maybe a lean condition coupled with retarded timing..(basing this just on what we know so far)
Tim
glowing headers can be both from a lean or a rich condition, but what concerns me is one cylinder showing the glow...I am thinking maybe a lean condition coupled with retarded timing..(basing this just on what we know so far)
Tim
Melting Slicks
Joined: May 2006
Posts: 3,303
Likes: 14
From: Lynn MA
please post pictures,,,,I am curious on the physical position of the distributor....and how it was installed...take pic of top of intake, showing dist cap etc....I am betting/hoping we are looking at a tuning problem, timing, fuel etc and not a damaged/burnt valve however what the other forum member posted could indeed be the issue, valve adjustment, burnt/damaged valve....
Advanced
Joined: Sep 2012
Posts: 94
Likes: 2
From: Seattle Wa
Plug wires switched? Perhaps 5 and 7? I had a Ford 289 that did the same thing when I first fired it up. We held it at 2000 rpm to break in the cam but had to shut it down to fix the problem. One cylinder was red hot on the header. Double checking that the wires were on the correct plugs fixed it. Just my $0.02
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
5 MOST and 5 LEAST Popular Corvette Model Years in History!
Joe Kucinski
2027 Corvette Buyer's Guide: Everything You Need to Know!
Joe Kucinski
Melting Slicks
Joined: May 2006
Posts: 3,303
Likes: 14
From: Lynn MA
likely no damage...lets get some pics going....pics of plugs, etc etc, top of motor showing distributor position, also check your cap, rotor, wires....have am ohm gauge? lets start with the basics, as I am betting that is where the issue is....then on to compression and or checking valve adustment.. all are valid posts from other members
Le Mans Master
Joined: Oct 2005
Posts: 6,247
Likes: 471
From: Glen Allen, VA
I believe you've got the plugs all wrong on the distributor. The reason the firing order was mentioned was b/c that's the sequence the plugs should follow on the distributor. As I see it, you have the #1 wire in the correct spot, and I THINK you go clockwise from there to 8-4-3-6-5-7-2, but don't quote me on that, and I don't have a book close by to verify.
Burning Brakes
Joined: Aug 2008
Posts: 878
Likes: 55
From: Deep South Denmark
http://www.boxwrench.net/specs/chevy_sb.htm
So are the cylinders numbered as i drew it?
My distributor has numbers on it where the leads go and it is numbered as i drew it, looking at it from above facing the way you sit.
So are the cylinders numbered as i drew it?
My distributor has numbers on it where the leads go and it is numbered as i drew it, looking at it from above facing the way you sit.
Check where the wires actually lead to instead of what numbers somebody scribled on there. They are not connected like they are marked!
Drifting
Joined: Aug 2009
Posts: 1,346
Likes: 160
From: new iberia la
YOUR WIRES may be INCORRECT
FRONT OF SBC
1-------2
3-------4
5-------6
7-------8
DISTRIBUTOR
front
----1---8---
--2------4-- this is correct
--7------3--
----5---6---[/QUOTE]
unless you have a "Corrected " distributor cap ...is it a standard cap, or a corrected cap? is it marked on the cap for plug positions? if its a "corrected " cap, odd /even numbers are on seperate sides......do you have a vacuum gauge? connect to manifold and it will tell you if you have a valve issue on #7 cylinder...this is an excellent site and will explain the readings http://www.secondchancegarage.com/public/186.cfm.. look at scenario #5
FRONT OF SBC
1-------2
3-------4
5-------6
7-------8
DISTRIBUTOR
front
----1---8---
--2------4-- this is correct
--7------3--
----5---6---[/QUOTE]
unless you have a "Corrected " distributor cap ...is it a standard cap, or a corrected cap? is it marked on the cap for plug positions? if its a "corrected " cap, odd /even numbers are on seperate sides......do you have a vacuum gauge? connect to manifold and it will tell you if you have a valve issue on #7 cylinder...this is an excellent site and will explain the readings http://www.secondchancegarage.com/public/186.cfm.. look at scenario #5
Last edited by fishslayer143; Jan 9, 2013 at 08:34 AM.
Instructor
Joined: May 2011
Posts: 195
Likes: 0
From: Bausman PA
Looking at your pics, it looks like all of the wires on the passenger side of the distributor are going to the passenger side of the engine and all wires on the drivers side if the dist. are going to the drivers side of the engine. Call me crazy, but that just can't be right. Or did they come up with something new that I'm not aware of ????????
Melting Slicks
Joined: May 2006
Posts: 3,303
Likes: 14
From: Lynn MA
I would possibly richen it..I personally run AC plugs....which is what they also ran in Apollo 11
Have you set it up on number 1 yet? check the timing mark then remove cap to ensure rotor is pointing to number 1? do this when you can, we need to make sure you are set up right...will only take you a half hour or so...
Have you set it up on number 1 yet? check the timing mark then remove cap to ensure rotor is pointing to number 1? do this when you can, we need to make sure you are set up right...will only take you a half hour or so...