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Re: Need opinions on problem. Had a manifold crack but really strange.
stainless loves to crack like that, I have welded/replaced many factory headers/ exhaust at work for that. He didn't do anything wrong installing it or lifting the engine with it ::). As soon as the exhaust warmed up I bet these cracks sealed right up. stainless expands/contracts alot, if the mani design doesn't alow for it then cracks will appear. Look at factory jeep 4.0l headers :-X
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Re: Need opinions on problem. Had a manifold crack but really strange.
Originally Posted by Stealthmode
I don't think it's neccesary. Many don't use them, and if the stainless is the problem, than it shouldn't be used. A brace from the DP to the block will rock in the exact motion as a manifold/turbo/DP with no brace. You could probably take some of the weight off of it, but what exactly is the problem here? Is it the manifold, the material, or the weight?
Originally Posted by highroller54
stainless loves to crack like that, I have welded/replaced many factory headers/ exhaust at work for that. He didn't do anything wrong installing it or lifting the engine with it ::). As soon as the exhaust warmed up I bet these cracks sealed right up. stainless expands/contracts alot, if the mani design doesn't alow for it then cracks will appear. Look at factory jeep 4.0l headers :-X
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Re: Need opinions on problem. Had a manifold crack but really strange.
Originally Posted by daubleaaron
The cracks are all under the manifold, You can hardly see them from the top. Before I took the engine out three days ago I went for a couple rippers by the farm, 0-120 runs 10psi from 3 grand to redline bitch, no half throttle hotrex ----, no spool up problems.
Your a ------- idiot. Thank god I didnt buy a manifold from you. ::) thats a unusually large and odd placed set of cracks. i woulda replaced it too. just seems initially fishy, na meen? |
Re: Need opinions on problem. Had a manifold crack but really strange.
When you pulled the motor did you wrap the chain around the manifold? If you did, the manifold could of just been barely cracked, but the weight from the stress on the chain would of cracked the hairline cracks bigger. -Nick
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Re: Need opinions on problem. Had a manifold crack but really strange.
Originally Posted by Stealthmode
Josh, would you say the same about thing if it were trance? DoubleA is almost a twin personality of trance, and you know how that goes.
Make a new one, move on. this is hmt steve, the land of people doing stupid ---- on a regular basis. so you need to rule out all possibility. i dont know aaron from ----, and judging by some of the ---- we see on here, id bet more than one person has tried to remove their engine from the car using their manifold as a jack point,. im not hating, just was a bit skeptical. but thats aside now. |
Re: Need opinions on problem. Had a manifold crack but really strange.
Csaddict asked me if there was any funny buisness that went on with the manifold, I replied.
Originally Posted by daubleaaron
As for using it as a lifting point, Im going to school to be a auto tech, I know where is a safe lifting point. My grandpa has a full lift in his shop and a perfect engine hoist, there would be no reason for using any bizzare lifting point like the exhaust manifold. But I understand you would need to clear that up.
Originally Posted by hotrex
i say he jacked up the engine by the manifold ad broked it, and now hes fishing for a new one. :-X
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Re: Need opinions on problem. Had a manifold crack but really strange.
sure thing jesus.
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Re: Need opinions on problem. Had a manifold crack but really strange.
im guessing it has to do with the way that the pipes are layed out, kinda perpindicular to eachother (#3 going into #4 perpindicular). i could see that causing the pipes to seperate there.
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Re: Need opinions on problem. Had a manifold crack but really strange.
I have no experiences with welding stainless, but I have a lot of experiences with them cracking, on military vehicles that uses them as downpipes, my personal project with obx, and ss auto, people on the forums etc. thats why I decide I am gonna stick with my cast iron blox manifold, so if it ever crack its covered under the lifetime warranty.
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Re: Need opinions on problem. Had a manifold crack but really strange.
Ok, I'm too lazy to read all the posts.. but explain to me how the ---- there is no carbon buildup around those cracks..
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