mcraymond3

What causes reversion? What can be done to fix it?

Hydrocruiser

"For applications where water reversion is expected, manufacturers recommends Thru-Hull tailpipes. Water reversion occurs in applications where tailpipe cooling ports are located near the engine exhaust ports. In this case, exhaust scavenging draws cooling water from the tailpipe into the engine to cause premature engine failure. Thru-Hull tailpipes will eliminate potential for reversion.

For extreme applications where engine positioning creates a situation where water reversion will occur, a “completely dry tailpipe” is required".

50boat

us a less duration cam,and ore extend the leight of your riser pipe 10 to 12in, at the bottem of the pipe one inch a head of the endof the pipe drill three half in. holes, one center, bottem and the outher 2 with oposed with 3/4in space betwene. use high temp sealler to plug the inner holes at the end of pipe. this forces all the water to the out side ,,, do non dril lit thein to inter pipe. my min idle rpm 1000 to 1100 no load on bravos 4years no problems

mcraymond3

Thanks for the help. We have ordered dry tail pipes from CMI. They would not take back the tail pipes I just spent $600 a pair on b/c they were bolted on. If anybody can use these pipes, I will sell both sets for the price of one.