Lucky or Good?

Rather be Lucky or Good?

  • Lucky

    Votes: 8 44.4%
  • Good

    Votes: 10 55.6%

  • Total voters
    18
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Hyper_pak

Old School Chrysler Fan
Joined
Feb 14, 2010
Messages
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Desoto Texas
I needed to remove a broken stud in a slant six aluminum intake. The one inboard of the carb that bolts to the exhaust manifold. It was broken clean off on the bottom and someone had used a stud instead of a bolt so I flush cut the threads off. Then I started drilling with my portable Craftsman drill press. Low and behold right at the end the damn stud came out on the drill bit. The crazy part, it's like exactly centered on the bit, I mean I don't think a machine shop could have done better. And I have drilled a lot of broken parts and screwed them all up. Off center, off angle, broken bits, you name it, I have screwed it up. Look at the pictures and you tell me, Lucky or Good???
IMG_9922.JPG
IMG_9924.JPG
 
Studs have threads so my question is, where did they go?
 
I think that was something that someone drove in to plug the hole. Or was that the shoulder of the bolt? That would mean the threaded part is in the exhaust manifold still ?
 
I am thinking that it just the shank of bolt, one of the three that hold the exhaust and intake manifolds that butts up for heat exchange... I am pretty sure you have skills, but a hammer and punch would have been quicker here...
 
It looks like the factory stud with just a little bit of pulled thread on the end. My thinking is that somewhere, there is an exhaust manifold that has a little over a half inch of the threaded end stuck in it. Other than that, though, very good job! If you want to do that every time you drill and its broken off flush, use a Dremel tool or the like with a small grinding point in it and use it grind a divot in the center of the bolt. You may have to start on a slight angle until you get some material removed and upright it slowly while applying slight down pressure.
 
All I ever got was the intake. And you are right about the stud threads, so this must have been the bolt, but I did have some threads on the top... Hum, now I am confused...
 
Here's a picture of \6 exhaust manifold, typically two bolts with nuts hold the outboard ones, the one closer to the engine is a stud with a nut on top of the intake, that is the one you drilled out of the intake....

slant6manifold.jpg
 
Definitely GOOD. You obviously took great care to center punch the exact center of the hole and then drilled very carefully.
 
Stan, I don't think that's a stud or a bolt. It has no threads on it, I'd be checking the hole to see if there are threads in there. If not, get a HeliCoil kit & fix it up correctly.
 
Defiantly not my good this week, had to pull steering box and put a seal kit through it, put it back today leaking out of 1 of the o rings near the where the column attaches (our steering boxes mount on the chassis rail so have to drop exhaust and torsion bar to get out) registration due next week and needs to be inspected for road worthy, will not pass with the leak.
this morning before starting on the valiant, the wife's car was being difficult to start jumped it heaps of steam out the exhaust so looks like a head gasket or head on a diesel Volkswagen
Just what i needed more expenses
 
I think you lucked up and did good. How's that? Nice job!
 
I'd rather be good. But man you got lucky here, with a smidge of good ;)
 
I think just lucky, I haven't changed, I just got lucky. Now if the wife can get lucky and win the lottery, we will be lucky!
 
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