What is Laycock overdrive?
What is Laycock overdrive? At the press of a button or flip of a switch (depending on the car) in the cockpit, the overdrive would engage and lower the engine speed relative to the driveshaft, markedly improving fuel economy. ... How does a Laycock overdrive work? Laycock Overdrive A and D Type cone clutch, which was operated by hydraulic pressure. Pressurized oil is fed to the positions when the solenoid lifts a lever and raises the control and ball valves. Laycock Overdrive J Type. This raises the pressure in the circuit and forces the operating pistons down their bores. How...