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#2399456 - 11/06/17 02:27 PM Re: JB Weld [Re: dart4forte]
62maxwgn Offline
master

Registered: 01/22/03
Posts: 8343
Loc: Central,PA
Find someone that can do cast iron the "right" way,that is an easy fix.

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#2399572 - 11/06/17 05:24 PM Re: JB Weld [Re: 62maxwgn]
dart4forte Offline
I Live Here

Registered: 01/31/03
Posts: 13809
Loc: Mesa, Arizona
Found a place here in Phoenix, that is the only place in Phoenix that does castiron welding. Cold fusion

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#2399722 - 11/06/17 09:15 PM Re: JB Weld [Re: dart4forte]
NANKET Offline
master

Registered: 12/13/03
Posts: 3721
Loc: northwest USA
JB Weld sux for something like this. A big waste of time. Fix it right the first time, it's not a Yugo.

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#2399751 - 11/06/17 10:07 PM Re: JB Weld [Re: FurryStump]
1KoolBee Offline
enthusiast

Registered: 12/18/11
Posts: 224
Loc: San Diego, CA
[quote=FurryStump]You could look into Belzona super metal 1001. VERY expensive, but is the best epoxy out there. $290 a kilo. They repair shaft keyways with it. I used it to seal hole in intake port. Stands up the best to alchol in pump gas [/quote


Crown Metals Royal 44-30 Mig wire is not cheap either, ($85 for 2 lbs) but might be something that would work well in a DIY situation. Gets good reviews. just wait 'till the wife goes to the store and borrow her oven for the pre/post heat. smile

http://www.millerwelds.com/resources/com...e-for-cast-iron
_________________________
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#2399779 - 11/06/17 11:08 PM Re: JB Weld [Re: dart4forte]
poorboy Offline
master

Registered: 01/19/03
Posts: 5960
Loc: Freeport IL USA
Originally Posted By dart4forte
Found a place here in Phoenix, that is the only place in Phoenix that does castiron welding. Cold fusion


Cold Fusion is the way it would get welded at my shop as well. For something like that, be sure the head surface is ground flat again (have the entire head surface milled flat) before you try to bolt it up, or it will break again. If you get it welded and it breaks again, get a new manifold. Cast iron that has been through several heating cycles sometimes won't weld good regardless of the method used.

The JB Weld fix lasted bout as long as I expected. It simply doesn't work anyplace there is a tension. Gene

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#2399806 - 11/06/17 11:59 PM Re: JB Weld [Re: poorboy]
dart4forte Offline
I Live Here

Registered: 01/31/03
Posts: 13809
Loc: Mesa, Arizona
Yep. Heading over to the facility tomorrow.

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#2401578 - 11/10/17 06:06 PM Re: JB Weld [Re: dart4forte]
dart4forte Offline
I Live Here

Registered: 01/31/03
Posts: 13809
Loc: Mesa, Arizona
Got the manifold back. They ended up not using the old tab. Instead they formed a block of weld at the end of the manifold. Reason was the weld would be too weak. Had to grind away an inch of weld.

So now I have to grind away the excess weld enough so that the mating surface can be trued. After that drill a new hole. Once that's done then I can grind in the contours and get it as close as I can to stock. I'll use a Dremel tool for that.


Attachments
Repair.jpg

Exhaustr port repair.jpg




Edited by dart4forte (11/10/17 06:21 PM)

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#2401601 - 11/10/17 06:55 PM Re: JB Weld [Re: dart4forte]
bboogieart Offline
master

Registered: 01/12/08
Posts: 3332
Loc: Lost and Spaced
I gotta say, I too, had little hope of JB Weld doing the trick.
I don't believe in chemical cures for mechanical problems.

I wish you better luck with this effort.
Sure looks like the right way to go forward. up
_________________________
I have mechanical Aptitude.
I can screw up anything.

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#2401682 - 11/10/17 09:14 PM Re: JB Weld [Re: dart4forte]
poorboy Offline
master

Registered: 01/19/03
Posts: 5960
Loc: Freeport IL USA
If your not keeping that one section of the manifold on the same flat plane as the other flat sections, you will have a leak and it will break again. You can't just make that one section flat without regard to the rest of the manifold.

Is that all weld build up, or did they weld on a section of cast iron?

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#2401692 - 11/10/17 09:37 PM Re: JB Weld [Re: dart4forte]
EV2Bird Online   work
On Vacation

Registered: 06/23/14
Posts: 2828
Loc: Kansas Roads Between 0 and 140...
Im not that lucky so id eat it now and toss it in the dumpster and find a good manifold. But its not that easy with that one it looks like.

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#2401710 - 11/10/17 10:14 PM Re: JB Weld [Re: poorboy]
dart4forte Offline
I Live Here

Registered: 01/31/03
Posts: 13809
Loc: Mesa, Arizona
No, had to get it down so the machine shop can get everything true. After that I'll drill the hole then I can try and reshape everything. Keep in mind that this is a temporary fix until I can find another manifold.

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#2401873 - 11/11/17 10:15 AM Re: JB Weld [Re: dart4forte]
moparx Offline
master

Registered: 09/03/03
Posts: 7937
Loc: north of coder
you may want to consider the header trick i stole from mr. pbody over on the race forum years ago. that trick was to enlarge one of the attaching holes on each separate tube segment[s]. this allows the attaching points to expand and contract under use and cool down. this may take some strain out of your newly formed ear. this trick works great to seal up even thin flange headers, so i would presume the idea may have some merit for your repair as well. it couldn't hurt [in my opinion], unless the bolt holes from the factory are a bunch bigger than the retaining fasteners, which would then make this idea moot.
beer

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#2401877 - 11/11/17 10:23 AM Re: JB Weld [Re: moparx]
RapidRobert Offline
Circle Track

Registered: 11/20/03
Posts: 32710
Loc: Lincoln Nebraska
^^^ that sounds like an excellent idea, I had to enlarge the holes on my manifolds just from normal warpage.
_________________________
live every 24 hour block of time like it's your last day on earth

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#2401999 - 11/11/17 01:58 PM Re: JB Weld [Re: moparx]
dart4forte Offline
I Live Here

Registered: 01/31/03
Posts: 13809
Loc: Mesa, Arizona
Originally Posted By moparx
you may want to consider the header trick i stole from mr. pbody over on the race forum years ago. that trick was to enlarge one of the attaching holes on each separate tube segment[s]. this allows the attaching points to expand and contract under use and cool down. this may take some strain out of your newly formed ear. this trick works great to seal up even thin flange headers, so i would presume the idea may have some merit for your repair as well. it couldn't hurt [in my opinion], unless the bolt holes from the factory are a bunch bigger than the retaining fasteners, which would then make this idea moot.
beer



I've done that. In addition I'll be using Rimflex gaskets.

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#2403729 - 11/14/17 07:32 PM Re: JB Weld [Re: dart4forte]
dart4forte Offline
I Live Here

Registered: 01/31/03
Posts: 13809
Loc: Mesa, Arizona
Well, here's an update. On Saturday I talked with a guy that had an M code Cuda at one of the local shows. I was telling him about my delima with the broken manifold. He speaks up and says he has a pair he's not going to use.

Went over and picked them up today. He had a pair and was willing to split them up. I went ahead and bought the pair. Just got home and checked the numbers. The driver side manifold which has the heat riser intact is 67-69 (900). However, the driver side is a 9002 which is a 67 manifold.

The 67 manifold would be somewhat correct for my car but I'd like to get a 68-69 manifold so I might see if someone wants to trade. In the meantime it goes to the machine shop where I'll have it mag'd and the surface trued.


Edited by dart4forte (11/14/17 08:09 PM)

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