Overheating: Marine gearboxes stay cool via an oil cooler. If the gearbox casing feels excessively hot to the touch, check for blockages in the water-cooling lines or scale buildup inside the heat exchanger. The Top Overhaul: What to Inspect
Without this "Top" tier manual, you risk destroying a $5,000 gearbox with a $50 mistake. tmp gearbox workshop manual top
: The hydraulic system should operate at approximately 80 psi . Overheating: Marine gearboxes stay cool via an oil cooler