: 95 to 100 p.s.i. (Standard operation around 80 p.s.i. is also common) Oil Capacity Main Box: 2 1/4 Pints Reduction Box: 1 Pint Lubrication : Engine lubrication oil, specifically
This comprehensive workshop guide outlines critical procedures for the maintenance, removal, teardown, and reassembly of TMP Type 12000 gearboxes. 1. Technical Specifications & Identification
Visit the official TMP documentation portal today. Verify your gearbox model and serial number, and order the Top manual that matches your specific unit. Your gearbox—and your bottom line—will thank you.
: Fitted to conventional right-hand rotation engines. tmp gearbox workshop manual top
If the official route is not enough, the community of TMP owners is your next best friend. These forums are where real-world fixes and shared knowledge reside. Key threads include a post on DIY repairs which says the gearbox is "heavy and awkward to handle"; a forum user saying Thamesway Marine Products "still stock full range of spares" and that they have "a full set of cutaway diagrams with part numbers"; an owner who notes a noise only evident at higher revs and that bearings are "standard taper rollers," implying rebuilding might be "fairly straightforward"; a request for a copy of a manual that reveals a user had to go to a workshop that "is a cowshed at the bottom of his garden" to get parts; and identification help where a user confirms a gearbox "looks like a TMP (Tideway Marine Products) hydraulic gearbox" and shares a warning that "you should not use copper based alloys (like brass) for cooling connections".
The remains a foundational mechanical component for classic vessels, demanding strict adherence to its official workshop manual guidelines to prevent premature failure. Originally designed by historical manufacturers like Henry Meadows and Nicor Marine, this robust, heavy-duty marine gearbox has been manufactured and supported by Thamesway Marine Products since 1982.
The TMP (Tideway Marine Products) gearbox is a renowned marine transmission found in many classic boats, most commonly mated to engines like the Perkins 4107, 4108, 4.10SM, and some Mercedes diesels. They are known for being heavy, reliable, and robust, featuring a unique epicyclic design with two separate oil compartments: one for the main hydraulic (forward/reverse) unit and another for the reduction gear unit. : 95 to 100 p
Never reuse old seals, as they are likely to leak. Conclusion
: Use only SAE #30 engine oil ; multi-grade oils can cause clutch slippage.
: A rearward sliding clearance of at least 2.0 inches is necessary to split the input splines. Mercedes installations may require up to 6.0 inches unless the studs are entirely backed out of the engine backplate. Your gearbox—and your bottom line—will thank you
TMP Type 12000 marine gearbox is a high-pressure hydraulic unit originally manufactured by Thamesway Marine Products (TMP)
For industrial automated TMP gearboxes, the Top manual includes air pressure curves. You will learn how to use a manometer to set the "kiss point" at exactly 4.2 bar ±0.1. Ignore this, and you will burn out the actuator solenoid within a week.