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Cracked header,,, repair question #1908368
09/07/15 11:35 PM
09/07/15 11:35 PM
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69CHARGERMD Offline OP
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Noticed a small crack / hole in the number 3 header tube 4-5 inches down the tube from where it bolts to the head. You can feel a puff of air as the motor is running. Question, what is a easy way to fix this?. Does the header need to be removed from the car? Or can it be "welded up" on the car. It looks like it's pretty easily accessible. These are TTI headers that have been "coated". Not too concerned about overall cosmetic affect. Not sure how old the headers are ,,, I would guess about 10 plus years.
Not sure how it happened unless it got beat up a little last time I had to change the starter which is always a PITA
Thanks
Doug

Last edited by 69CHARGERMD; 09/07/15 11:36 PM.
Re: Cracked header,,, repair question [Re: 69CHARGERMD] #1908374
09/07/15 11:41 PM
09/07/15 11:41 PM
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Romeo MI
MR_P_BODY Offline
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Doug if you or the guy doing the welding it can be
done on the car... but the coating needs to be ground
off in that area.... but its much easier if they are
off the car
wave

Re: Cracked header,,, repair question [Re: 69CHARGERMD] #1908380
09/07/15 11:53 PM
09/07/15 11:53 PM
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Milwaukee WI
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TRENDZ Offline
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If there is a hole, It may be time for new headers. If they're thin enough to get a hole, they may be to thin to save. 10 years is a nice life span(depending on climate)


"use it 'till it breaks, replace as needed"
Re: Cracked header,,, repair question [Re: 69CHARGERMD] #1908391
09/07/15 11:59 PM
09/07/15 11:59 PM
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69CHARGERMD Offline OP
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Thanks Mike,,,,,,

Trendz,,,I was wondering if I should replace them as well

Is there anything I can wrap them with to finish the season ?? Or is this a bad idea ? Don't want a problem eg fire, etc.

Last edited by 69CHARGERMD; 09/08/15 12:01 AM.
Re: Cracked header,,, repair question [Re: TRENDZ] #1908394
09/08/15 12:05 AM
09/08/15 12:05 AM
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MR_P_BODY Offline
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Usually its the outside of the first bend that burns
threw first... give that area a good push with your thumb
to see if the metal bends or bust thru... if t does just
buy a new set of headers... there comes a point that you
just cant save them... that area that needs to be fixed is
a strange area to burn thru first(if its a straight)
wave

Re: Cracked header,,, repair question [Re: 69CHARGERMD] #1908400
09/08/15 12:11 AM
09/08/15 12:11 AM
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Originally Posted By 69CHARGERMD
Thanks Mike,,,,,,

Trendz,,,I was wondering if I should replace them as well

Is there anything I can wrap them with to finish the season ?? Or is this a bad idea ? Don't want a problem eg fire, etc.


Doug since you just want to finish the season... weld it up and
take your chances that it wont burn thru in some other place
wave

Re: Cracked header,,, repair question [Re: 69CHARGERMD] #1908401
09/08/15 12:12 AM
09/08/15 12:12 AM
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Australia
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If you have a shot at welding in place be sure nothing goes into your port if you burn through.


1963 Plymouth Max Wedge
1971 Barracuda
Re: Cracked header,,, repair question [Re: 69CHARGERMD] #1908406
09/08/15 12:21 AM
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69CHARGERMD Offline OP
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Thanks Ozy

Mike,,,you are spot on,,,,it's right at the bend on the outside portion,,,,of the number 3 tube,,,,

I think I will replace them,,,this was something I hadn't seen before,,,,

Thanks everyone for the help

Doug.

Re: Cracked header,,, repair question [Re: 69CHARGERMD] #1908562
09/08/15 12:22 PM
09/08/15 12:22 PM
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Crizila Offline
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Originally Posted By 69CHARGERMD
Thanks Ozy

Mike,,,you are spot on,,,,it's right at the bend on the outside portion,,,,of the number 3 tube,,,,

I think I will replace them,,,this was something I hadn't seen before,,,,

Thanks everyone for the help

Doug.
iagree Probably thin there, as cracks from vibration normally occur at the header flange.


Fastest 300
Re: Cracked header,,, repair question [Re: 69CHARGERMD] #1908746
09/08/15 05:25 PM
09/08/15 05:25 PM
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Morrow, OH
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I have found that when I start getting cracks/holes I can weld them up a few times but they are done. Once they start the holes continue because the heat cycles killed the metal.


67 Coronet 500 9.610 @ 139.20 mph
67 Coronet 500 (street car) 14.82 @ 94 mph
69 GTX (clone) - build in progress......
Re: Cracked header,,, repair question [Re: markz528] #1908751
09/08/15 05:46 PM
09/08/15 05:46 PM
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Originally Posted By markz528
I have found that when I start getting cracks/holes I can weld them up a few times but they are done. Once they start the holes continue because the heat cycles killed the metal.


The location his burnt thru is the hot zone in the tubes
and the force of the flow going into the turn is the first
area to burn thru... that whole area will be thin so when
you start to patch it that hole WILL grow due to being thin
and burning thru.. I have fixed some headers that had only a
1/2" hole in it but by the time I was done I had a 2" long
patch on it due to it being paper thin
wave

Re: Cracked header,,, repair question [Re: 69CHARGERMD] #1908770
09/08/15 06:36 PM
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Buy a stainless steel band clamp and place that over tube problem solved I had one on a cat conv for close to 12 years and it still looked good. You did say you did not care about looks ?

Re: Cracked header,,, repair question [Re: 69CHARGERMD] #1908804
09/08/15 07:27 PM
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69CHARGERMD Offline OP
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Thx Paul,,,,,
That might be a good option while I'm waiting on a new set of headers,,,,,might get me thru the rest of the season,,,,,,

Re: Cracked header,,, repair question [Re: 69CHARGERMD] #1910220
09/10/15 10:17 PM
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69CHARGERMD Offline OP
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Update header off. Looks to have crack adjacent to where tube was dented for plug clearance.

Re: Cracked header,,, repair question [Re: 69CHARGERMD] #1910223
09/10/15 10:18 PM
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69CHARGERMD Offline OP
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Fixable ???

Re: Cracked header,,, repair question [Re: 69CHARGERMD] #1910234
09/10/15 10:29 PM
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Originally Posted By 69CHARGERMD
Fixable ???


Doug... that metal got hardened and brittle..
is it fixable.. sure .. I'd weld it up.. but
be prepared for cracks elsewhere... but I do
the work myself so I put up with more BS than
most.... any welder can fix that
wave

Last edited by MR_P_BODY; 09/10/15 10:30 PM.
Re: Cracked header,,, repair question [Re: 69CHARGERMD] #1910244
09/10/15 10:42 PM
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69CHARGERMD Offline OP
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Thanks Mike, I have a good friend with very good welding skills. Going to take it out to him next week and see what he thinks.
I sent him a picture, he thinks he might be able to cut that section out and repair it. Will keep you posted

Re: Cracked header,,, repair question [Re: 69CHARGERMD] #1910250
09/10/15 10:47 PM
09/10/15 10:47 PM
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Originally Posted By 69CHARGERMD
Thanks Mike, I have a good friend with very good welding skills. Going to take it out to him next week and see what he thinks.
I sent him a picture, he thinks he might be able to cut that section out and repair it. Will keep you posted


Doug... its up to him...but being that your just trying to
get through the season.. I wouldnt even cut it out.. just
weld it up... the most I would do is drill a 1/8" hole at
the end of each crack and weld it up
wave

Re: Cracked header,,, repair question [Re: 69CHARGERMD] #1910363
09/11/15 01:44 AM
09/11/15 01:44 AM
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Originally Posted By 69CHARGERMD
Update header off. Looks to have crack adjacent to where tube was dented for plug clearance.


Dang Doug sorry to see that. Its been so long but i bought those headers brand new to go with the 440 that was in the car when you bought it from me. I think i got the headers from mancini racing. Are you going back with a new set of the TTI or are you going to try a different brand?


3520 pound race ready 1973 Street/Strip Dodge Dart - Stock stroke 440/727 10.49 @ 125.0 on 93 pump gas & ET Street Radials. More to come... ( SGT Miller) Proudly served 12 years in the US ARMY RESERVES support our troops
Re: Cracked header,,, repair question [Re: 69CHARGERMD] #1910437
09/11/15 10:54 AM
09/11/15 10:54 AM
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cgall Offline
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I've fixed cracks like that at the track with a torch and coat hanger rod. A better fix is a brazing rod. Plenty of metal left there.

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