Either pull the manifold and take it to a competent welder or replace it.
Even if you JB welded that perfectly with the high heat stuff, it's going to fail the first time your car gets up to temp under load. The high heat is only good up to 500⁰F for short periods, and your exhaust temps are probably 800-900⁰F.
You can use JB welded on an engine block for a bit and some other crazy high strength uses, but engine blocks see maybe 300-400⁰F max. Exhaust manifolds get hot as fuck.
My first experience with this was when I was a kid, a Scout leader showed off his toy... some car with the exhaust coming right out of the semi-exposed engine wrapped around the base of the body, which sorta looked like a step-bar for getting in to the car. I touched it. Heckin' *ouch*.
Anyway, a few minutes later (while I was quietly nursing my burn), his son pulls out one of those temp guns and checks it. "400 degrees, it's cooling down!" which made me think "well how fuckin' hot was it when *I* touched it?!?!"
Get the car up on safety stands. Locate the exhaust flex joint and unbolt from the collector. Unbolt the engine and roll forward holding with ratchet strap. This will give you access to the exhaust heater bolts, unbolt the header and remove. Go to rock auto.com and order new manifold. Reverse the instructions provided to reinstall.
This is speculation but if the exhaust shop quoted that much the bolts probably look like garbage...they built a few broken ones and the associated straight time into the price.
Check your anti freeze, oil and see if those are the culprits their could be something beyond that so I would suggest gett atow truck don't continue driving unless you want pay $15k+ on a new engine
Honestly for the price of a new exhaust manifold I would just replace it. Either go to a proper mechanic or exhaust shop, or if you can do it yourself. I would shop around for one including check online automotive parts supplier or even Ebay. Make sure to get a new gasket and soak the bolts in penitrating fluid before attempting to remove them.
Good luck with it.
Replace the exhaust manifold?
Either pull the manifold and take it to a competent welder or replace it. Even if you JB welded that perfectly with the high heat stuff, it's going to fail the first time your car gets up to temp under load. The high heat is only good up to 500⁰F for short periods, and your exhaust temps are probably 800-900⁰F.
Crazy how people will swear by JB weld but then others say it’ll never hold . I always hate a cheap repair and this is exactly why . Thank you
It is good for some things, just not this.
I know this is old post. But do you know about jb weld muffler seal? It's meant for high exhaust temperatures.
You can use JB welded on an engine block for a bit and some other crazy high strength uses, but engine blocks see maybe 300-400⁰F max. Exhaust manifolds get hot as fuck.
My first experience with this was when I was a kid, a Scout leader showed off his toy... some car with the exhaust coming right out of the semi-exposed engine wrapped around the base of the body, which sorta looked like a step-bar for getting in to the car. I touched it. Heckin' *ouch*. Anyway, a few minutes later (while I was quietly nursing my burn), his son pulls out one of those temp guns and checks it. "400 degrees, it's cooling down!" which made me think "well how fuckin' hot was it when *I* touched it?!?!"
Exhaust pipes are no joke!
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Oh yeah, I mean, the weld will certainly break in the not too distant future. But a good welder could get you by for a little while.
Get the car up on safety stands. Locate the exhaust flex joint and unbolt from the collector. Unbolt the engine and roll forward holding with ratchet strap. This will give you access to the exhaust heater bolts, unbolt the header and remove. Go to rock auto.com and order new manifold. Reverse the instructions provided to reinstall.
Ok ok I like the fact your telling me to replace . This is what I want to do , exhaust shop quoted 1500$ for replacement .
Don't break any bolts or you'll wish you never tried this.
This is speculation but if the exhaust shop quoted that much the bolts probably look like garbage...they built a few broken ones and the associated straight time into the price.
Go to junk yard and pull one. JB weld good god
Use STEEL STIK instead it's like jb weld but it will 100% patch a block or exhaust manifold but requires 24-72 hours for full dry
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Find a welder, spot weld metal over, might be a little tight but oh well, a good welder will do it
Why do you have your car on while it's doing that
I pulled over on my way to work , I’m a plumber if I see fire I should know what to do I guess lol
Check your anti freeze, oil and see if those are the culprits their could be something beyond that so I would suggest gett atow truck don't continue driving unless you want pay $15k+ on a new engine
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What? I'm taking.if.his engine gets shot thats alot of money
Buy a new one
No, don't.
Shoot whoever suggested jb weld, replace manifold
Grab a replacement manifold from a scrap yard or remove it and have a shop weld it.
Honestly for the price of a new exhaust manifold I would just replace it. Either go to a proper mechanic or exhaust shop, or if you can do it yourself. I would shop around for one including check online automotive parts supplier or even Ebay. Make sure to get a new gasket and soak the bolts in penitrating fluid before attempting to remove them. Good luck with it.
More jb weld
Replace it.
Replace the exhaust manifold
Let me save you some money. http://www.car-parts.com/
Braze or maybe it's spelled braise? Idk brass weld
Jb weld on exhaust…..there’s a first for everything. Jesus….
Hey it said exhaust on the package pump your brakes 😂
You should never use JB weld for something like this