Exhaust Manifold removal

[pnora]

Poster should just drive it like it is as it takes a skill set and out of the box thinking to solve it. Ultimately the motor most likely has to come out.

 

[Bird 426]

I do not believe that there is anything to get ahold of with a socket. Looks like that is what is left of the picture in post #29.

 

[RussT Plymouths]

What would be the possibility of using a small hole saw to cut the nut off the stud? Use an angle drill or maybe a long extension through a gap or hole in the inner fender. Similar to using a hole saw to remove the swage from front hub lug bolts when replacing front drums. A little outside the box maybe, just another idea.

 

[Charlie71rt]

this is a tough one, keep us updated. It would still require lifting the engine for clearance, but I would try an end mill or Blair cutter I’ll try to find a pic. I guess everyone agrees you will have to sacrifice the stud.

 

[1967coronet]

Engine has to come up , unbolt the trans, the linkage and convertor, lines ect and support trans.
Radiator and fan out. Batt, unhooked, mount bolts out,
Get that sucker up to eye level then use a hole saw with the same Inside dia. As the stud.
If you need to thin the hole saw down a bit.
Or go with dad's bee and grab the piece of pipe, tombstone and a 6010 stick.

 

[Orig69]

I'm trying to remove my exhaust manifolds to send them out for ceramic coating. How do I remove the 2 bolts that are in the water jacket holes on the manifold?
Is there a special tool or is it a 9/16" socket grinded down to fit in the opening?
Many thanks

It looks more like a piece of tubing than it does a sleeve nut.

 

[WileERobby]

I remember doing a few ball-buster jobs that weren't worth it. Afterwards, turning away those same type of jobs. This would be one of them.

 

[dvw]

I like the idea of the hole saw. Get one that the inner diameter just fits over a 3/8" bolt. Stick it down the hole and work slowly. I've cut swedged wheel studs this way. It worked very well.
Doug

 

[thehemikid]

I like the idea of the hole saw. Get one that the inner diameter just fits over a 3/8" bolt. Stick it down the hole and work slowly. I've cut swedged wheel studs this way. It worked very well.
Doug

Would be nice if the pic was a bit clearer. I know it's hard for some cameras to focus down a hole, but it seems to me that there is some hex shape to that fuzziness down there to what if that's a header bolt?!

Another possibility, still based on fuzzy pic what if there is no nut and it's just rusted tight on the stud?

 

[1 Wild R/T]

Yeah, I agree with the above post, looks like a hex to me to... Like the stud was removed and a bolt was used... Either grind a socket down to fit or use a sleeve to hold a drill bit on center and drill the head off then when the manifold is gone grab the rest of the bolt & back it out...

 

[gdrill]

I would have already purchased and installed a new manifold by now! No, I don’t always let patience run my actions!

 

[1 Wild R/T]

I would have already purchased and installed a new manifold by now! No, I don’t always let patience run my actions!

As has already been mentioned the drivers side manifold is off a 73-74 anyway... No chance I'd throw $$$ at it....

 

[Master Gunner]

You do know that the casting numbers for HP manifolds are the same for 71-74, only dif is the date on them.

Mark

 

[1 Wild R/T]

You do know that the casting numbers for HP manifolds are the same for 71-74, only dif is the date on them.

Mark

The butt ugly late model manifold being used on the O/P's 67...

The casting number and date code off the manifold..

The cleaner looking early manifold that would be more period correct on the O/P's 67

And the casting number/date code for that...

FWIW I have a set of those with an early 67 date code...

 

[Beekeeper]

yea I would cut that bitch off and get the correct manifolds

 

[dadsbee]

I would have come back as the OP and told us what he did weeks later....

 

[1 Wild R/T]

I would have come back as the OP and told us what he did weeks later....

It's been just over a month... Hopefully he's made progress but no everyone gets in a hurry...

 

[1967 satellite]

could they be allen bolts?

no definitely a hex nut

 

[1967 satellite]

I have car that someone use Allen head bolts down in those holes.


Get a light and a mirror and see what down in those holes.

definitely hex nuts

 

[1967 satellite]

sorry I was unable to respond as my wife had heart surgery and I was unavailable for awhile. But no further development since my last post. The studs in the 3 holes are definitely nuts. Here are some pics that I took. I purchased a 14mm 12 pt thin wall socket and it was too big. The hole is approx .650" and the nuts are 9/16". I can't seem to find a thin socket which the od is .650" or smaller. Any further help is greatly appreciated. Many thanks.