Re: headers glowing red at idle
[Re: dart games]
#3147315
05/28/23 10:32 PM
05/28/23 10:32 PM
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Joined: May 2019
Posts: 713 Lake Villa Il
INTMD8
super stock
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super stock
Joined: May 2019
Posts: 713
Lake Villa Il
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My instinct is to agree with Al and it's timing. Idling when restricting the carb makes me wonder how it could possibly be so lean otherwise? So, I don't know but agree with others that I would start with verifying timing mark.
69 Charger. 438ci Gen2 hemi. Flex fuel. Holley HP efi. 650rwhp @7250 510rwtq @5700
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Re: headers glowing red at idle
[Re: dart games]
#3147351
05/29/23 06:12 AM
05/29/23 06:12 AM
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Joined: Jun 2014
Posts: 3,202 Md.
carnut68
master
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master
Joined: Jun 2014
Posts: 3,202
Md.
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gtx matt,so a vacuum leak would be a sign as my hand is over the primary of the carb and it stays running That tells you it's really lean. Look for a vacuum leak. Did Dominic recently work on the carb?
America First!
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Re: headers glowing red at idle
[Re: Blusmbl]
#3147363
05/29/23 08:45 AM
05/29/23 08:45 AM
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Joined: Feb 2008
Posts: 715 Central TEXAS!!!!
sr4440
super stock
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super stock
Joined: Feb 2008
Posts: 715
Central TEXAS!!!!
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Definitely try carb cleaner or something near the intake to head area, underside by the valley pan, and around the base of the carb.
Like others have mentioned, it’s either too lean or the timing is retarded. You’ve verified the timing mark with a piston stop so that is likely ruled out, but if it doesn’t die with your hand covering the carb it sounds like it’s getting excess air somewhere. Whenever we have a new engine that shows signs of being lean (won't idle on idle circuit, red headers, runs like chit) I grab a can of crab cleaner and spray the intake mating area and carb base. You will know right away with the engine speed change. Joe
Last edited by sr4440; 05/29/23 08:45 AM.
Without Data, you’re just another guy with an opinion.
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Re: headers glowing red at idle
[Re: dart games]
#3147370
05/29/23 09:05 AM
05/29/23 09:05 AM
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Joined: Feb 2008
Posts: 715 Central TEXAS!!!!
sr4440
super stock
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super stock
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Central TEXAS!!!!
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Rotate the engine 360 degrees and the cam dot will be on the top.
Joe
Without Data, you’re just another guy with an opinion.
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Re: headers glowing red at idle
[Re: dart games]
#3147371
05/29/23 09:06 AM
05/29/23 09:06 AM
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Joined: Jan 2003
Posts: 2,926 A shed in England
Tig
master
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master
Joined: Jan 2003
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A shed in England
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You really need to confirm the cam install with a dial gauge and a degree wheel. It's rare but stuff can be machined wrong unfortunately.
'74 Challenger..9.46 @ 145.9 1/4, 6.001 @ 118 1/8 so far. 4023lb !!! # N/A, Marsh performance 655ci, Indy Maxx, T/R, Indy 600-13 X's, Street legal, pump gas, full interior, Cal-Tracs, mufflers, 3:73's and real 10.5 radials. 9.51 @ 142.4 1/4, 6.003 @ 114 1/8 with our old mule KB, 572-13, 580 wedge. RHD '68 Barracuda Fastback 323ci street/strip. Best ET 13.88 @ 99.03
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Re: headers glowing red at idle
[Re: Tig]
#3147373
05/29/23 09:15 AM
05/29/23 09:15 AM
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Joined: Feb 2008
Posts: 715 Central TEXAS!!!!
sr4440
super stock
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super stock
Joined: Feb 2008
Posts: 715
Central TEXAS!!!!
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Someone has sent you down a rabbit hole, I had an engine that the cam was retarded 2 teeth (28.8 degrees) and it idled ok but ran like poo. The fact that you add more fuel (covering the cab with your hand) and it runs, tells you, you nave an A/F issue.
Without Data, you’re just another guy with an opinion.
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Re: headers glowing red at idle
[Re: sr4440]
#3147385
05/29/23 09:52 AM
05/29/23 09:52 AM
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Joined: May 2005
Posts: 1,995 Apollo, PA.
B1MAXX
top fuel
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top fuel
Joined: May 2005
Posts: 1,995
Apollo, PA.
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Someone has sent you down a rabbit hole, I had an engine that the cam was retarded 2 teeth (28.8 degrees) and it idled ok but ran like poo. The fact that you add more fuel (covering the cab with your hand) and it runs, tells you, you nave an A/F issue. this right here I agree with. And yes the key should be at 2 o clock when at TDC, and the corresponding cam timing dots line up.
Last edited by B1MAXX; 05/29/23 09:52 AM.
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Re: headers glowing red at idle
[Re: B1MAXX]
#3147411
05/29/23 12:14 PM
05/29/23 12:14 PM
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Joined: Jan 2003
Posts: 19,375 Las Vegas
Al_Alguire
I Live Here
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I Live Here
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Posts: 19,375
Las Vegas
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Its pretty easy to check if its timing. With the engine running turn the distributor. If it runs better, headers stop glowing theres your sign. Then you can worry about the other issues. Seen it MANY times and it has always been a timing issue. You won't hurt the engine if the ignition timing get advanced to 40-or 50 degrees at idle. There is no load on the engine at idle. Id be willing to bet its off 14-20 degrees from where you think it is. But if you advance it and it gets better you have an answer, that costs nothing and takes minutes to try.
You seem to have another issue being a vacuum leak. Gonna have to be a HUGE leak to turn 8 headers red, not just a random cylinder or two. Think about it...The headers being red is 99% of the time from fuel being burned in the header rather than the chamber, they dont get that hot from a LACK of fuel
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
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Re: headers glowing red at idle
[Re: FastmOp]
#3147479
05/29/23 07:29 PM
05/29/23 07:29 PM
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Joined: Feb 2008
Posts: 715 Central TEXAS!!!!
sr4440
super stock
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super stock
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Central TEXAS!!!!
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If it is 4 degrees advance, there is a different mark than the "0" degree dot. The dot on the cam and the "mark" will line up when the mark is closest to the cam, the cam dot will either be on the top or bottom, but it will be in line with the crank and cam. Like FastMOp said, need CLEAR pictures of the crank gear.
Without Data, you’re just another guy with an opinion.
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Re: headers glowing red at idle
[Re: dart games]
#3147518
05/30/23 03:26 AM
05/30/23 03:26 AM
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Joined: Aug 2003
Posts: 43,228 Bend,OR USA
Cab_Burge
I Win
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I Win
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Posts: 43,228
Bend,OR USA
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Last edited by Cab_Burge; 05/30/23 03:26 AM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: headers glowing red at idle
[Re: Cab_Burge]
#3147525
05/30/23 06:38 AM
05/30/23 06:38 AM
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Joined: Jan 2011
Posts: 678 st.louis,mo.
dart games
OP
mopar
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OP
mopar
Joined: Jan 2011
Posts: 678
st.louis,mo.
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the crank gear is a 7 way with the key in the 4a slot,so there is markings on the outside of crank gear with the settings and dots to line up.but there is a single dot at 0 that looks like the cam gear.after looking up the part number for top gear its a pro gear timning set.so i went on there website.the tr series shows a 3 bolt with a 3 way crank gear.the 4000 series shows the only one with a 9 way crank gear but a single bolt cam gear do agree with timing.i talked to thumper.he says his carbs are ready to go out of the box and no settings needed.i never did find nothing wrong with the carb and the intake gaskets is correct.i emailed pro gear see if they can send me instructions
Last edited by dart games; 05/30/23 07:21 AM.
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