Re: exhaust pipe installation

Posted by Gene Davis (GA) on January 10, 2005 at 20:02:32 from (66.82.9.64):

In Reply to: exhaust pipe installation posted by western Iowa on January 10, 2005 at 18:01:31:

If you warm the manifold and screw it further down, you may run a risk of when it cools down of cracking the cast iron that the manifold is made of. When you screw the pipe in further than the normal taper it acte as a wedge and expands against the outer threads. The taper is the same on the inside and outside threads, I have found that a good way to handle exhaust pipe threads loosening is to clean the threads on both pieces with a tap and die if needed. I then install a steel,(not cast aluminum) conduit lock nut that will split when tightened),with the concave side towards the manifold. Then after coating the threads with a good grade of high temperature anti-sieze compound I screw the pipe in tight. Be careful so that you don't break the cast iron manifold. When the pipe is screwed as far as it is possible with normal pipe wrench (not a 5' cheater pipe) I then lock the conduit nut against the manifold. WORDS OF CAUTION!!!!! HAMMERS WILL DESTROY CAST IRON!!!! I have had very good sucess with this method. Gene Davis

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