RE: [Chrysler300] 300F torque converter and remote booster

Hi Pat,

A 4-stroke internal combustion engine as in your car must be in continuous rotation to produce the torque that drives the wheels. It does not have the capability of starting smoothly under significant load, ie. with a manual transmission in gear and clutch engaged. The clutch enables you to start the engine and then controllably apply torque through the transmission to the driving wheels. Conversely you must disengage the clutch from the transmission to bring your car to a smooth stop without stalling the engine.

The torque converter does not totally "disengage", but at slow engine rotation speeds allows for enough "hydraulic slip" for your car to stop without stalling the engine even though the gears in the transmission remain engaged. The automatic transmission is a gear drive system that uses a hydraulic system to accomplish the shifting that you do manually with a stick shift system. The hydraulics in the transmission and the use of oil in the torque converter are not related except that they normally share the same oil supply. The oil in the transmission does not provide any of the motive forces, but it does in the torque converter.

In your tractor the system is very different. It is hydrostatic. There is a pump driven by your engine to move oil under pressure to a hydraulic motor attached to your drive shaft. There is NO mechanical connection between the engine and drive shaft. The pump is of a special design that enables you to vary its oil output thus your tractor's speed of motion even with a constant engine speed, usually with either a foot-controlled pedal or a hand-operated lever. Hydrostatic systems are great for infinite speed variability and very high torque loads at relatively slow speeds, but are not suitable for high speed systems as internal friction losses become objectionable.

I have lots of literature to help you additionally if you wish to study this a little more. Hope this is helpful and let me know it you want more.

Marshall Goodknight C-300
with a Powerflite and torque converter that still work
Please note: message attached

From: "Pat Grant" <grant4405@xxxxxxxxx>
To: "Don Verity" <d.verity@xxxxxxx>, <mgoodknight@xxxxxxxx>, "Rich Barber" <c300@xxxxxxx>
Cc: <meehan200@xxxxxxxxx>, <chrysler300@xxxxxxxxxxxxxxx>, <tdcox@xxxxxxxxxxxxx>
Subject: Re: [Chrysler300] 300F torque converter and remote booster
Date: Wed, 2 Oct 2013 10:43:55 -0400

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