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Is this normal for a 350 sbc header to glow this red??


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#1 Kado100

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Posted 14 September 2016 - 07:19 AM

https://imagizer.ima.../923/Os7lXA.jpg

#2 JPN_Garage

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Posted 14 September 2016 - 10:11 AM

You might have a bad injector or Carb jet


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#3 JMortensen

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Posted 14 September 2016 - 10:44 AM

Retarded timing will get the exhaust hot too.


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#4 Kado100

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Posted 14 September 2016 - 11:47 AM

Right now it at tdc and even if I advance the timing it still gets red too.. I'm so lost right now.. I took it to the shop and they say that my timing was off by 10 degree.. They didn't say if it was too advance or too retard.. I bring it back to the shop and they can test it again.. To my knowledge that I think, I don't think the shop even touch my car. They charge me 300 and all my setting is still the same as I try to tune it..

#5 bramagedained

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Posted 14 September 2016 - 01:59 PM

Do you mean timing is set to when the motor is at top dead center?  If so, that is way too retarded.

 

Depending on what is done to the SBC, initial timing should be 8 to 20 degrees before top dead center.



#6 Kado100

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Posted 14 September 2016 - 02:01 PM

Yes the shop set it and this is a new carb too. https://imagizer.ima.../923/Os7lXA.jpg

#7 Kado100

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Posted 14 September 2016 - 02:05 PM

If anyone that lives in southeast Wisconsin that can help me. I'm willing to pay. My location is Sheboygan wisconsin

#8 JMortensen

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Posted 15 September 2016 - 07:11 AM

The other thing to check is that the timing marks on the balancer are correct. I was about 17 and working as a mechanic and had a car come in that wouldn't idle unless it had 50 degrees BTDC timing or something ridiculous like that. I screwed around with it for a while, then finally pulled number one spark plug put a pen in the hole and turned the crank until I found where TDC was. Turned out the balancer had separated and the timing marks on the outside of the pulley had moved relative to the inside.


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#9 Eric JB

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Posted 24 September 2016 - 09:49 AM

Do you mean timing is set to when the motor is at top dead center?  If so, that is way too retarded.

 

Depending on what is done to the SBC, initial timing should be 8 to 20 degrees before top dead center.

I have found that mine has way cooler engine compartment temps with lots of initial timing. What dist does it have? Do you have a vac can? If so, try setting it at 34 degrees full advance without the can, and the hook the can to manifold vacuum, instead of ported vacuum.



#10 Kado100

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Posted 26 September 2016 - 09:11 PM

My distributor is a Holley 600 Cfm.. I'm still waiting for the shop to reply back to me..

#11 Jiwon

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Posted 28 November 2016 - 05:30 AM

Mine is like this too so it must be a common problem.



#12 NewZed

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Posted 28 November 2016 - 02:34 PM

What brand of header is that?  The hot spot is at the junction of the four pipes.  Maybe it's just a poor design with a a flow restriction and thin metal.



#13 LLave

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Posted 28 November 2016 - 04:42 PM

Often that is a sign you are running lean. Have you pulled a spark plug to get a "read"?



#14 jasonZ

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Posted 19 January 2017 - 03:01 PM

I was also going to mention a lean condition. Happend to me years ago and was definitely not top of my list of things to check.






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