How should I remove a manifold stud? It is very tight.

Thanks

Vise grips or two nuts on the threads. Turn the innermost nut and use the outer nut as a jam nut.

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Casually looking for a Clifford hyperpak intake for cheap.

Or you can purchase a 5/16" stud puller and unscrew them with your 1/2" ratchet.

-D.Idiot

alternate heat and PB Blast before trying to remove them.

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1964 Dart GT

Weld a 5/16 nut on the stud with an oxy-acetylene torch. They turn right out after that. All the other methods have resulted in broken studs for me...

Question: what do you mean by "manifold stud"? Stud in the head that the manifolds bolt to? Stud in the intake for the carb to attach with? Stud in the exhaust manifold for the exhaust pipe to bolt to? Stud in the exhaust manifold for the intake to slide over and the nut to attach to?

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Casually looking for a Clifford hyperpak intake for cheap.

Stud in the head that the manifolds bolt to

Lisle 71200 Stud Remover($25 on Amazon)

Heat & PB Blast. They should come out.

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1964 Dart GT

What he said, that typically does the job, I've tryed the 2 nut method and have broken studs because the wrench or socket side loaded the stud forming a shear point in the heat treated 40 year old studs...

-D.Idiot

The two nut method resulted in stripped threads for me. I've gotten them out with vise grips, they were always marred badly enough I wouldn't reuse them though.

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Not the cheapest way, by any stretch, but Snap-On's collet-type, CG-500 set does it best, IMHO:

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obliquely-inclined state of mind

I have found it seems to help giving each stud a firm tap on the end of the studs with a brass hammer. This is after an overnight soak with a rust penetrant.
I then use a stud remover as pictured above,but the studs are almost too small for the tool. Vice grips may be the way first.
I would then clean the threads in the head and use locktite on new studs.
Good luck and expect to snap at least 1 !
Brendan

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1963 AP5 Valiant 225 PB 904 Stock except extractors & 2 1/4 inch exhaust.


1962 S series valiant 225 PB auto. factory every thing. Full restoration job.
Currently on hold till AP5 is on the road.

I would always install new studs any time a manifold is installed if the old studs are degraded at all. It is imposable to get a consistent torque on rusted or worn studs, and will most likely cause vacuum leak problems down the road.

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67' Dart GT Convertible; the old Chrysler Corp.
82' LeBaron Convertible; the new Chrysler Corp
07' 300 C AWD; Now by Fiat, the old new Chrysler LLC