If the 8-bush input is seized due to rust, experts at Thamesway Marine Products suggest cutting a small access hole in the housing to apply lubricant and leverage the flywheel directly. 2. Inspection for Wear
Use only SAE #30 engine oil . Avoid multi-grade oils (e.g., 10W40), as they can negatively impact the coefficient of friction and cause clutch slippage. tmp gearbox workshop manual top
Inspect the bushes and shafts. Wear in this area is a primary cause of excessive noise. 3. Reassembly Best Practices TMP gearbox assembly DIY | YBW Forum If the 8-bush input is seized due to
During disassembly, pay close attention to the following high-wear areas: Avoid multi-grade oils (e
Check the pressure plate face and gears for ovality. Excessive wear here leads to a "flicking" pressure gauge or total loss of drive.
The system typically operates at approximately 80 psi to engage the conical clutch plates.
A full overhaul requires specific replacement parts to ensure the integrity of the hydraulic seals and mechanical drive. Component Type Part Number / Requirement Seals the output shaft for direct drive units. Gasket Kit Includes essential O-rings for pressure integrity. Brake Pad Neutral brake pad for stopping shaft rotation. Oil Filter TM 12009 / 12773 Models differ between MK II and MK IV versions. Step-by-Step Workshop Procedures 1. Removal and Disengagement