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Indmar Exhaust Manifold fitting blew


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It was a smokey Saturday for my 2008 LSV. Blew port side manifold exhaust fitting. Thinking boat was running without water intake for 1-2 mins at very low speed.


1. Looks like elbow fitting blew out. And seems like simple replacement. 

2. Anything else I need to be aware of or check.

3. The threaded portion broke off in manifold. Any suggestions on removing.

4. When installing new elbow, any tape or material used.


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The remaining portion of the plastic water fitting can be removed with a large EZ-out bit or broken into pieces and removed with a pick.  Often, the threads in the manifold need to be cleaned with a pick or chased with a pipe tap.  The threads on the replacement fitting should be coated with high temp pipe thread sealant like Permatex 59214.

The ETX CAT exhaust hose re-plumb kit should be installed if it hasn't been done already. 



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