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Old 03-21-2010, 12:50 PM
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One Red Hot Pipe

Only one. Number 5, when running after doing any tuning it'll get dull cherry. Why only one? and why any?

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Old 03-21-2010, 12:58 PM
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I might start my sleuthing by doing a cranking compression test....
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Old 03-21-2010, 01:20 PM
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lmost like its not sealing up during compression huh?
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Old 03-21-2010, 01:36 PM
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Not sure about that. Glowing pipes are usually the result of either a lean mixture or retarded timing, but to have it only on one cylinder.....I have never experienced that, so I would want to start with the easiest and least costly examination....and that would be checking compression.

If it were happening on #7, then you could say, well....#5 got all the charge and left #7 not much of a fuel/air charge, so it went a little lean and resulted in heating the pipe. But for #5 to do this.....like I said....I've never experienced it. Maybe some sharper board members will chime in....
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Old 03-21-2010, 01:46 PM
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A couple of other things to check are the plug and plug wire on that cylinder.
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Old 03-21-2010, 02:11 PM
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Quote:
Originally Posted by techinspector1
Not sure about that. Glowing pipes are usually the result of either a lean mixture or retarded timing, but to have it only on one cylinder.....I have never experienced that, so I would want to start with the easiest and least costly examination....and that would be checking compression.

If it were happening on #7, then you could say, well....#5 got all the charge and left #7 not much of a fuel/air charge, so it went a little lean and resulted in heating the pipe. But for #5 to do this.....like I said....I've never experienced it. Maybe some sharper board members will chime in....
Compressions all around 135 by 2-3 pounds. I aint worried. At idle its not bad, but try to throttle it and red like is 5 seconds. I dont have an infrared thermo but I can tell by slight color changes that #8 is flirting with it to
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Old 03-21-2010, 02:33 PM
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You could try checking for an intake manifold leak on those two cylinders.
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Old 03-21-2010, 03:03 PM
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You know fellas, some here have displayed a tad of digussed at my questions, but what has to be realized is that its not only to get me answers but people googling certain problems will hit on these topics and membership will grow. Membership is a good thing

How bout a combo answer to this question. Here it is. If you look at my headers they dont all quite bend as tight at the head. Guess which two bend the tightest. #5 tightest,#8 close second. I gave up on the timing light and I'm going in to see if they sell 3000 cold cranking amp batteries cause I got like 1.5X the advance I'm supposed to have. But when I advanced it to who knows where the throttle response got better and the two pipes that showed a temp change hardly do squat now. #5 still a pube but if you didnt know it you'd never see it. Just gotta go buy a small engine to keep in my pocket for warm starts. Ya I know the toggle switch to clik after rolling but I'd just as soon it started normal. Anyway thats all it was. Not the advance the car wants and two pipes that are bent tighter so show it up first. I hope somebody googling for an answer on why he has a red header pipe finds this and it helps him

Sure was glad to see equal compression though
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Old 03-21-2010, 03:11 PM
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Quote:
Originally Posted by sooper
I got like 1.5X the advance I'm supposed to have.
And by what are you basing this on??

I'll bet you've not checked what's up by DETERMINING TDC and MAKE A TIMING TAPE.
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Old 03-21-2010, 03:26 PM
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Quote:
Originally Posted by cobalt327
And by what are you basing this on??

I'll bet you've not checked what's up by DETERMINING TDC and MAKE A TIMING TAPE.
Timing tape still on actually. If you go by timing light, and I've tried 3 and used a seperate battery I have as much as 54 degrees and as little as 50 and its where it wants to be. Comes a time when if things are running good at an obsurd number and sh1tty at the proper number then ya gotta leave em where they run. Or am I wrong?

Quote:
Originally Posted by cobalt327
I'll bet you've not checked what's
re-read MAKE A TIMING TAPE.

I didnt see ya in my shop. Was ya hidin real good

Last edited by sooper; 03-21-2010 at 03:33 PM.
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Old 03-21-2010, 04:05 PM
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Quote:
Originally Posted by sooper
...Here it is. If you look at my headers they dont all quite bend as tight at the
head. Guess which two bend the tightest. #5 tightest,#8 close second. I gave
up on the timing light and I'm going in to see if they sell 3000 cold cranking
amp batteries cause I got like 1.5X the advance I'm supposed to have. But
when I advanced it to who knows where the throttle response got better and
the two pipes that showed a temp change hardly do squat now...
I have never seen tight bends in the header cause overheating, I am of the
opinion that fuel burning in the tube causes it. If your ignition advance is so
high that the engine is hard to start with a good starter and battery, I'd say
you have a problem somewhere, may be ignition.
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Old 03-21-2010, 04:10 PM
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Quote:
Originally Posted by sooper
Or am I wrong?
I don't know- you tell me.

If you haven't determined if TDC on the tab/damper, IS TCD, YOU STILL DO NOT KNOW WHERE THE TIMING IS SET!

Quote:
I didnt see ya in my shop. Was ya hidin real good
Son, you would have no doubt of it were I to be in your "shop".
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Old 03-21-2010, 04:31 PM
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Quote:
Originally Posted by sooper
You know fellas, some here have displayed a tad of digussed at my questions
What are you talking about? You asked for help and people suggested things you could check to find your problem or at least narrow down the possibilities. If you think you know the cause is a slight bit more bend in a header pipe (what?) then why are you even asking?
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Old 03-21-2010, 04:53 PM
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Quote:
Originally Posted by Raufus
What are you talking about? You asked for help and people suggested things you could check to find your problem or at least narrow down the possibilities. If you think you know the cause is a slight bit more bend in a header pipe (what?) then why are you even asking?
your kinda twisting the chronological order in which noticing the pipe bend and looking for an answer here happened. Go back and read.

Cobalt, my TDC was marked at the shop. I merely applied the tape to that mark they made with 4 centre punch marks in a line. I was told where it was. I set the static at 15 and fired right into cam break so I've no reason to doubt the mark (as they had it) nor the simplicity of making timing tape
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Old 03-21-2010, 04:55 PM
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Quote:
Originally Posted by Raufus
What are you talking about? You asked for help and people suggested things you could check to find your problem or at least narrow down the possibilities. If you think you know the cause is a slight bit more bend in a header pipe (what?) then why are you even asking?

AND you missed the inference to other threads, but that too would involve reading
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