I had a similar problem with my Detroits. It turned out to be a plugged after cooler for the turbo. I'm not familiar with your engine so I don"t know if you have an after cooler or not. Jim aboard m/v Sea Eagle "Semper Fi" In a message dated 2/19/2008 9:50:03 A.M. Eastern Standard Time, gdostal@juno.com writes: Anybody please help, I have twin 240 hp turbo Perkins (1986, 3,600hrs.). For the last few hundred hours one of them will run too hot at rpms over 1,800-the higher the rpms the hotter it runs. I have checked and done all I can think of:from the thru hull to the water cooled exhaust elbow all seems to be clear & clean and I even solution back flushed it. The fresh water side has been solution circulated & new anti-freeze water. All this resulted in just a very little improvement. Could this be an engine mechanical problem or ? just causing too much heat for the capability of the cooling system? Any ideas??? _____________________________________________________________ Put an end to annoying pop ups! Click here! http://thirdpartyoffers.juno.com/TGL2121/fc/Ioyw6i3nCB2Xsa4yM0PQYbX2WHYUq1yGc 2VNBbAcz5u8q3YJxFbVBi/ _______________________________________________ http://lists.samurai.com/mailman/listinfo/trawlers-and-trawlering To unsubscribe or modify your subscription options (get password, change email address, etc) go to: http://lists.samurai.com/mailman/options/trawlers-and-trawlering Trawlers & Trawlering and T&T are trademarks of Water World Productions. Unauthorized use is prohibited. **************Ideas to please picky eaters. Watch video on AOL Living. (http://living.aol.com/video/how-to-please-your-picky-eater/rachel-campos-duffy/ 2050827?NCID=aolcmp00300000002598)