I Don’t Just Repair Pipes.

[RustiePyles CPG]

A coworker brought in this Chrysler 2.7 exhaust manifold with a crack in and asked me if I could weld it up for him.

Drilled each end of the crack to prevent further cracking.
Cut a groove along the crack to allow the weld to lay flat and penetrate the crack.
Set everything up to weld it, then preheated the whole manifold with an acetylene torch.

Welded it up at a very low DC amperage with bronze silicate rod (tig brazing). Covered it up with a welding blanket to let cool slowly to prevent more cracks.
Ground the weld back, and done!


Just shared this cause I didn’t want you guys to think I just worked on pipes all the time.

 

[ashdigger]

Not to brag, but I superglued my hand to a broken toy once.

 

[Jbrewer2002]

A coworker brought in this Chrysler 2.7 exhaust manifold with a crack in and asked me if I could weld it up for him.

Drilled each end of the crack to prevent further cracking. View attachment 236381View attachment 236382
Cut a groove along the crack to allow the weld to lay flat and penetrate the crack. View attachment 236383View attachment 236385
Set everything up to weld it, then preheated the whole manifold with an acetylene torch.
View attachment 236386
Welded it up at a very low DC amperage with bronze silicate rod (tig brazing). Covered it up with a welding blanket to let cool slowly to prevent more cracks. View attachment 236387View attachment 236389
Ground the weld back, and done!
View attachment 236390View attachment 236391

Just shared this cause I didn’t want you guys to think I just worked on pipes all the time.

Perfect technique and execution. Well done sir.

 

[AJL67]

OH i though the post was going to be ..

"I just saved 15% on my auto insurance!"

 

[georged]

Just shared this cause I didn’t want you guys to think I just worked on pipes all the time.

Indeed he doesn't.

Forget pipes. Forget manifolds.

You know that pic of the T-800 with the burning eyes? Well, we are well down that road.

Except they are smarter than to use an anthropomorphic form. Something which humans find instinctively alarming (Cameron couldn't help himself, is all)... Instead, in reality, they have chosen something that appears appealing and beneficial to us.

Click this for a quick visual sampling of the Robot Overlords that Mr. R. Pyles serves.

Keep your jeep at hand for the big escape into the Mexican desert, is what I say.

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[mso489]

That is some straight up serious know-how. Bravo.

 

[bluegrassbrian]

Indeed he doesn't.

Forget pipes. Forget manifolds.

For a split second I thought you were going to say what I was going to say.

Busted exhaust manifold is the perfect excuse to upgrade to some headers!
You gotta wring out every ounce of pony power you can get from the anemic LH engine...

 

[RustiePyles CPG]

For a split second I thought you were going to say what I was going to say.

Busted exhaust manifold is the perfect excuse to upgrade to some headers!
You gotta wring out every ounce of pony power you can get from the anemic LH engine...

I think this a fixer upper for his teenage daughter, not trying to get any extra horses out of it. But this coworker would certainly try and hot rod anything else.

 

[Sobrbiker]

Nice. I haven’t played with Tig, think I’ve got to much of a natural tremor to do it well.

 

[chilllucky]

Whenever I've had to to TIG brazing on cast iron, I've used an old propane grill to pre-heat and do a long, 50°/hour cool down.

I recommend that you keep that grill outside as cast iron bits tend to be quite dirty.

 

[RustiePyles CPG]

Whenever I've had to to TIG brazing on cast iron, I've used an old propane grill to pre-heat and do a long, 50°/hour cool down.

I recommend that you keep that grill outside as cast iron bits tend to be quite dirty.

Yeah, had I gas brazed it I would have been a lot more concerned about pre-heat and cool down times but the heat soak is minimal compared to gas since it’s far more focused and I can control it a lot more accurately. The blanket kept it warm for about 30min, which was sufficient for a cool down time. It was such a small lightweight manifold that a med duty victor rosebud was sufficient to warm it up.

 

[jpberg]

Got a little porosity in the fish eye in the middle?

 

[Ahi Ka]

Until the later pics I just thought you were doing some extremely finicky work modifying grabow stingers

 

[RustiePyles CPG]

Got a little porosity in the fish eye in the middle?

No porosity, just some impurities. The cast iron they make these manifolds from is REALLY dirty. Lots of casting inclusions and slag pockets.

 

[Auxsender]

A coworker brought in this Chrysler 2.7 exhaust manifold with a crack in and asked me if I could weld it up for him.

Drilled each end of the crack to prevent further cracking. View attachment 236381View attachment 236382
Cut a groove along the crack to allow the weld to lay flat and penetrate the crack. View attachment 236383View attachment 236385
Set everything up to weld it, then preheated the whole manifold with an acetylene torch.
View attachment 236386
Welded it up at a very low DC amperage with bronze silicate rod (tig brazing). Covered it up with a welding blanket to let cool slowly to prevent more cracks. View attachment 236387View attachment 236389
Ground the weld back, and done!
View attachment 236390View attachment 236391

Just shared this cause I didn’t want you guys to think I just worked on pipes all the time.

Quite impressive.

 

[JOHN72]

Good job, my friend.

 

[ssjones]

Nice work! I never learned to weld, fortunately, my neighbor has me covered.

Your Low Brow sticker caught my eye.

 

[Jbrewer2002]

No porosity, just some impurities. The cast iron they make these manifolds from is REALLY dirty. Lots of casting inclusions and slag pockets.

Almost impossible to get that stuff clean enough. I usually glass bead and acid wash if available. Then a little preheat to boil or burn out any oils. I once fixed a coworker’s aluminum bell housing that he shattered. He was jumping a creek bed with his Jeep and landed on a rock. It was in about 10 pieces and a few missing. Had to bridge the missing pieces. I too used tig for that one but of course aluminum wire instead. It held together for 5 more years then he sold it. Who know it may be still running strong. That was almost 20 years ago.

 

[RustiePyles CPG]

Almost impossible to get that stuff clean enough. I usually glass bead and acid wash if available. Then a little preheat to boil or burn out any oils. I once fixed a coworker’s aluminum bell housing that he shattered. He was jumping a creek bed with his Jeep and landed on a rock. It was in about 10 pieces and a few missing. Had to bridge the missing pieces. I too used tig for that one but of course aluminum wire instead. It held together for 5 more years then he sold it. Who know it may be still running strong. That was almost 20 years ago.

The owner glass beaded it before he brought it to me. I didn’t see in impurities coming up or burning off when I preheated it. But they were sure hiding in there.

 

[kcghost]

Not just another pretty face, is he!!