Re: [Chrysler300] Broken Exhaust Manifold Bolt

["ryan hill" <ryan_hillc300@xxxx>]

Mark, I had the same problem with two of my 383's in the past. (the same 
bolt in fact.....front right) Unless you are lucky enough to be able to grab 
some of the bolt that may still be protruding from the head, there really is 
only one way to remove it.

Soak the threads with penetrating oil for a few days. Generally, these bolts 
are not actually tightened into the hole but rather they use the tension 
placed on them by tightening the nut against the manifold to hold them 
securely in place so fortunately they don't (typically) require to much 
torque to unthread them.

Center punch the stud and drill out as much of the stud as possible being 
carefull not to drill off-center or drill into the threads of the head. Then 
use an "easy-out" to back the stud out. I'm not sure how much room you have 
between the engine and fenderwell? The first one I did, I removed the inner 
fender (my car's are 1965's) and the second one I was able to drill out with 
a small 90 degree air drill. The heat from the drill bit broke the threads 
loose and I just backed it out attached to the drill bit.

Of course the alternatives are to lift the engine or remove the head. Good 
luck. Anyone has any better methods I'd love to know for next time.

Ryan.



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