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Chryco's Tech Shop => Exhaust Systems => Topic started by: 73440 on May 06, 2017 - 02:53:03 pm

Title: Broken exhaust manifold stud
Post by: 73440 on May 06, 2017 - 02:53:03 pm
(http://i1302.photobucket.com/albums/ag136/73440/20170506_122850_zpsd0rnnga4.jpg) (http://s1302.photobucket.com/user/73440/media/20170506_122850_zpsd0rnnga4.jpg.html)

Took a drive to Smileys Racing to buy 5 gallons of VP 110 leaded. Adjusted the idle, checked timing , it's at 12 btdc , then tried to reduce exhaust manifold leak and decided to snap one of the studs.
Still has the original turquoise paint on the bolt.
Title: Re: Broken exhaust manifold stud
Post by: xtopfuel on May 06, 2017 - 04:02:15 pm
Ugh that sucks
Title: Re: Broken exhaust manifold stud
Post by: 73440 on May 06, 2017 - 05:20:18 pm
It turned very easy, so it was probably going to let go soon.
Now it matches the starter bolt threads in the bell housing that are stripped.
40 year old engine will do that.
Title: Re: Broken exhaust manifold stud
Post by: xtopfuel on May 06, 2017 - 11:25:53 pm
True
Title: Re: Broken exhaust manifold stud
Post by: mopar jack on May 07, 2017 - 09:43:37 am
I have had that happen on the drivers side rear bolt, just broke off with no torque.
Title: Re: Broken exhaust manifold stud
Post by: 73440 on May 07, 2017 - 03:54:11 pm
 I recently replaced the header with the exhaust manifold and maybe it's possible that with the heating and the cooling and the different expansion rates of cast iron and steel tubing the stud stretched it a little bit because it was fine a month or so ago when I last checked .
This stud was drivers side second from front.
Title: Re: Broken exhaust manifold stud
Post by: 67vertman on May 08, 2017 - 01:35:11 pm
Sorry hear that.   :hyper: Hopefully it is not flush to the head and you can get it out easily .  :2thumbs:
Title: Re: Broken exhaust manifold stud
Post by: 73440 on May 08, 2017 - 02:19:39 pm
Probably flush, it snapped right at the start of the threads.
Title: Re: Broken exhaust manifold stud
Post by: 340-FOUR- BARRELL on July 20, 2017 - 12:13:18 am
Been there several times. Used the wick method with paraffin to remove snapped exhaust manifold bolts.
Title: Re: Broken exhaust manifold stud
Post by: 1 Wild R/T on July 20, 2017 - 01:17:50 am
Weld a nut onto it & unscrew...
Title: Re: Broken exhaust manifold stud
Post by: 73440 on July 20, 2017 - 06:56:44 am
Thanks, I need to do some work on this , will try the parrafin first and have the welder ready to go also.
Thinking of getting new set of studs installed all around while doing this repair.