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Comet 20 Series Torque Converters

Driver Clutches, Driven Pulleys, Parts and Info

20 Series Drivers

Comet 20 Series Symmetric Driver Clutches
Maximum Horsepower -- 8hp 4 cycle engine

Part Number

Description

Price

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219559A

DRIVER 3/4" BORE 20 SERIES

89.50


219560A

DRIVER 1" BORE 20 SERIES

99.50


The "Driver" Clutch rides on the Engine Crankshaft.
Engagement Range: Minimum 2200 RPM ---- Max. 3100 RPM

20 Series Driven

Comet 20 Series Symmetric Driven Pulleys
Maximum Horsepower, 8hp 4 cycle engine

Part Number

Description

Diameter

Price

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219459A

DRIVEN 5/8" BORE 20S 6"

6"

89.50


219463A

DRIVEN 3/4" BORE 20S 6"

6"

89.50


219461A

DRIVEN 5/8" BORE 20S 7"

7"

89.50


219462A

DRIVEN 3/4" BORE 20S 7"

7"

89.50


The "Driven" Pulley slides directly onto a jackshaft.
Blue Tension Spring. Uses a Symmetric, 3/4" Top Width Belt.



20 Series General Information


The symmetrical type model 20 uses a 3/4" top width belt. The belt mass lends substantially to the driving ability of the system especially in cases where added torque ability is required without danger of slipping the belt. The belt mass of 3/4" top width is especially helpful in applications of low speed, added power requirements such as tractor mowers, off road dune buggies, mini bikes, ATV's, and go karts. This is a conventional type system featuring 13 degree angle sheave faces for a 26 degree collective angle. Driven Units are mounted with torque sensing cam device inboard. Movable sheaves (driver and driven) operate opposite each other. Driven units are available with either 6" or 7" diameter sheaves.

How does a Comet torque converter work? The drive clutch is activated by centrifugal force from the engine crankshaft. The moveable sheave of the clutch is forced in as the RPM of the engine is increased. This contacts the drive belt. The drive belt will then be forced to a larger diamter within the clutch sheaves, thus pulling it to a smaller diameter within the driven unit sheaves. The moveable sheave of the driven unit is forced out, allowing the belt to seek its smaller, high speed ratio diameter. As this happens, the speed from the engine transferred to the final drive is increased.

IMPORTANT! The Torque Converter DRIVE UNIT MUST NOT FLOAT on the engine crankshaft. It must be bolted tight against the crankshaft shoulder. Recommended Torque for bolt: 24 ft. lbs. To 30 ft. lbs. MAX.

The crankshaft and the jackshaft must be parallel at all times.

Drive Clutch Engagement Range: MIN: 1200 RPM -- MAX: 3100 RPM

Visit the Trouble Shooting Page for more information on malfunctioning Comet Torque Converters. Belts eventually wear over time but a damaged or torn up drive belt always indicates that a problem exists with the system. Only replace your drive belt after the problem has been corrected. Components must be clean, lubricated and perfectly aligned to function properly.

Flyweight Assembly

Comet Spring & Flyweight Assembly For Driver

Part Number

Description

Price

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200344A

SPRING AND FLYWEIGHT ASSY

29.50


Bronze Bushing

Bronze Bushing For Driver Clutch

Part Number

Description

Price

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G30120

BRONZE BUSHING G3

9.50


Driven Snap Ring

Special Snap Ring For Driven Pulley

Part Number

Description

Price

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G00120

RETAINING RING G2,G3 DRIVEN

5.50


Insert Buttons

Set of 3 Black Insert Buttons For Driven Pulley

Part Number

Description

Price

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204332A

BAG OF THREE INSERT BUTTONS

6.00


For Driven Pulleys that use Six Insert Buttons
All the plastic insert buttons must be in place at all times. Don't run the
system if any of the buttons are missing. Missing buttons will allow the
driven pulley to open too far and the belt will go down into an area of
the pulley where it's not supposed to go. If the belt comes in contact
with the rivets it usually damages the belt. In addition, the buttons also
keep the movable sheave from spinning, they reduce friction between
the cam and the movable sheave and they prevent metal to metal
contact, acting as shock absorbers so they play a very important role.

GLUE INTO PLACE WITH CONTACT CEMENT OR SIMILAR PRODUCT

Blue Spring

Blue Tension Spring
For 20 Series Driven Pulleys

Part Number

Description

Price

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215698A

BLUE SPRING FOR 20 SERIES

22.50


These springs are 3" long X 2" wide


Torque Converter Maintenance


Inspect the torque converter on a regular basis for dirt, frayed belts and any other potential problem obvious from a visual inspection. Always service units before each season. Maximum service interval recommended is each 50 hours of operation.

Drive and driven pulleys should be parallel. Friction faces must be smooth and free of dirt, corrosion, oil or grease. Belt must be dry, straight, and free of cracks, breaks and uneven wear. Operating the vehicle in a dusty environment will require more frequent servicing.

Indicators of a torque converter system requiring cleaning and lubrication are erratic or jerky engagement upon acceleration and a tendency to apparently "lock" into a particular speed (a second cause of jerky engagement is an excessively loose drive chain). If either one of these conditions exist service the unit immediately. Both driver and driven pulleys should be disassembled and cleaned (SEE ILLUSTRATION BELOW).



C -- CLEAN ... L -- LUBRICATE


Use Dry Film Lubrication for all Torque Converters





Factory Authorized Comet Distributor