Tech Specs: 2006 Glastron GX-235, Engine is a I/O Volvo-Penta 5.7L Gl-E, Outdrive is an SX- M 1.43, and the Transom assembly is TSK SX-M.
Problem: Engine runs at completely normal operating temperatures EXCEPT when I trim the outdrive up (remaining between the stops, of course, and completely within the normal tilt-trim range). When I trim it up, even a relatively small amount, the engine temp will run pretty promptly up to 200 and the alarms start. When I tilt the drive back down fully, it promptly returns to normal operating temperatures. So there's a direct correlation there, and routine causes like thermostat, impeller, main water pump, gauge operation, etc can be ruled-out.
It seems like something along the intake path is getting restricted when the unit tilts up. So, what could be causing that? (One other note - this engine was R&R'd a year ago, so there's no debris in the engine or anything.... but, could something have been done wrong possibly during the engine reinstall? And if so, where should I look for the likely problem)?
Problem: Engine runs at completely normal operating temperatures EXCEPT when I trim the outdrive up (remaining between the stops, of course, and completely within the normal tilt-trim range). When I trim it up, even a relatively small amount, the engine temp will run pretty promptly up to 200 and the alarms start. When I tilt the drive back down fully, it promptly returns to normal operating temperatures. So there's a direct correlation there, and routine causes like thermostat, impeller, main water pump, gauge operation, etc can be ruled-out.
It seems like something along the intake path is getting restricted when the unit tilts up. So, what could be causing that? (One other note - this engine was R&R'd a year ago, so there's no debris in the engine or anything.... but, could something have been done wrong possibly during the engine reinstall? And if so, where should I look for the likely problem)?
