Exhaust Manifolds Bright Red!!

8

885.0conv

Member

Jan 9, 2008

238

0

16

Phoenix, Az

Jan 11, 2010

#1

• Jan 11, 2010

• #1

I just put back on the upper and lower intake manifolds after finding the lower to head bolts loose. I warmed up the engine to set the idle and initial timing. I did the KOEO with a code 11 and went to do a KOER and the car revved to 2500 which seemed high. I looked down and noticed that both exhaust manifolds were glowing bright red. I have never seen this before so I turned the car off to cool. I was wondering if this is normal.

 

Repostyle

Member

Jun 11, 2005

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16

Portland, OR

Jan 11, 2010

#2

• Jan 11, 2010

• #2

If it still has factory cats they could be clogged.

 

wythors

Get off my lawn!!!

Founding Member

May 17, 2000

2,277

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69

C Addle

Jan 12, 2010

#3

• Jan 12, 2010

• #3

More than likely, your timing is severely retarded. Make sure your distributor is stabbed properly and set the timing accordingly.

 

apollo12

New Member

Dec 11, 2007

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port st.lucie fla

Jan 12, 2010

#4

• Jan 12, 2010

• #4

^^ what he said,I seen people put the dizzy in wrong and with improped timing the headers were glowing cherry red

 

G

greengoblin95

Member

Sep 29, 2009

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6

Jan 12, 2010

#5

• Jan 12, 2010

• #5

i agree with the above as well. your combustion is finishing out through the exhaust valves which is more than likey your timing being retarded. it might be at 8 or lower.

 

Chrome_Rust

Member

Dec 5, 2008

530

1

17

Findlay, Ohio

Jan 12, 2010

#6

• Jan 12, 2010

• #6

Could have a bad vacuum leak causing the car to go lean. If it was rich, then the cats would be glowing red. Means you are having high EGT's. High EGT's mean Lean.... Low EGT's mean Rich....

 

srtthis

the guy doing it does every local racers rear end

15 Year Member

Jul 3, 2009

5,129

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Maryland

Jan 12, 2010

#7

• Jan 12, 2010

• #7

yea my guess is lean if its running ok... most of the time clogged cats wont let the car rev clean if at all

 

Tanus

New Member

Dec 11, 2009

847

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A to the Z

Jan 12, 2010

#8

• Jan 12, 2010

• #8

your super lean, check for vac leaks, should be easy to spot

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

43,249

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Massachusetts

Jan 12, 2010

#9

• Jan 12, 2010

• #9

Check timing

 

8

885.0conv

Member

Jan 9, 2008

238

0

16

Phoenix, Az

Jan 12, 2010

#10

• Jan 12, 2010

• #10

I sat my initial base timing to 14 which is what is was before taking the intake off. I am guessing I set my TDC correctly or the car would not start at all. After setting the idle I went to take the car around the corner. When I pulled out the brakes took all I had to stop and the car started running horrible so I pulled back in and started to run the KOEO and KOER test. When I put the car KOER and car revved to 2500 to do the test usually it is around 1500 which I though was weird that is when I looked and saw the manifolds. I will check both the timing and for vaccum leaks.

 

Tanus

New Member

Dec 11, 2009

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A to the Z

Jan 12, 2010

#11

• Jan 12, 2010

• #11

look at the vac line going to the brake booster

 

8

885.0conv

Member

Jan 9, 2008

238

0

16

Phoenix, Az

Jan 12, 2010

#12

• Jan 12, 2010

• #12

I just replaced the line with a silicone one but I heard the grommet around the line goes out.