[Jims5543]

Long story short, part of the reason my RX7 has been off the road so long is due to a problem we encountered when porting the engine.

We cut into the water jacket when making an aggresive port. We anticipated this and built up the water jacket with a "super duper space aged epoxy" that was supposed to be good up to 600°.

The problem is that is dry heat. When subjected to water, the epoxy actually boiled with the water.

The engine was assembled and run for 6 hours, my mechanic decided to pressure up the collent system to 18 PSI and see if the epoxy would hold. It failed.

The engine was pulled and taken back apart and the search for a suitable epoxy ensued. 2 different ones were selected both costing over $90 a quart. Both failed.

I was mentioning this ordeal to my dad and he suggested JB Weld, "You cannot be serious" I scoffed at him. That would be akin to using duct tape.

Well, I just ate a big slice of humble pie. We tested the JB Weld, check that, we abused the JB weld and it never flinched. Never showed a sign of failing after hours of boiling it.

Sometimes the best answer is the cheapest solution.