Spark Plugs And Water Dont Mix
 

:eek: Just Working On My 525sc To Find Out Why Oil Temp Climbed All Of A Sudden Yestarday And Decided To Change The Plugs While I Was At It And Found One Plug Too Have What I Think Is Water Getting On It And Burning,head Gaskets Were Done 50 Hrs Ago,seems To Run Good Under Throttle,no Water In Oil,does Load Up After Idling For Awhile, Could This Be A Head Gasket Seaping Or An Exhaust Header Leaking,I Have Cim Headers,THE HOLE IS NUMBER 6

Re: Spark Plugs And Water Dont Mix
 

any ideas??????????

Re: Spark Plugs And Water Dont Mix
 

There have been a few threads about possible header leaks and CMI here are some http://www.offshoreonly.com/forums/s...earchid=325375

Re: Spark Plugs And Water Dont Mix
 

take the header off and pressure check for cracks.

Re: Spark Plugs And Water Dont Mix
 

Can Headers Be Repaired Or Do They Have To Be Replaced?

Re: Spark Plugs And Water Dont Mix
 

You can have them repaired by a good welder who is familiar with marine exhaust systems. The headers tend to crack near the welds.