Clutch Primary Drive
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 1988 YAMAHA PHAZER COMPLETE PRIMARY DRIVE CLUTCH USED  US $117.95
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 Arctic Cat 300 4x4 Primary Drive Gear Clutch Basket US $128.99
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Increase Holding Power With the Mercedes Benz Pressure Plate
The pressure plate is one of three main friction components of your clutch system. It is a cast iron plate that provides a pivot fulcrum for the diaphragm spring, a friction surface for the disc and a mounting surface for the drive straps.
In much simpler terms, the Mercedes Benz pressure plate's main function is to apply pressure to the clutch disc for the transfer of torque to the transmission. This is a very important function since the pressure plate, when coupled with clutch disc and flywheel, makes and breaks the flow of power from the engine to the transmission.
To add further description, the Mercedes Benz pressure plate is like a spring-loaded clamp that is bolted to the flywheel. It consists of a sheet metal cover, heavy release springs, a metal pressure ring that provides a friction surface for the clutch disc, a thrust of ring fingers for the release bearing and release levers. The release levers lighten the holding force of the springs when the clutch is disengaged. Some high-performance pressure plates are "semi-centrifugal," meaning they use small weights on the tips of the diaphragm springs to increase the clamping force as engine revolutions increase.
There are three types of pressure plates that are used today. These are the long style, the Borg & Beck, and the diaphragm. The diaphragm is said to be the best plate for street use but then again, each of these three has specific advantages.
The long pressure plate is easily identified by the three thin fingers that engage the release bearing are used to identify the long pressure plate. Under the pressure plate cover is a series of nine coil springs. This style is mainly used for drag race applications where the static load can be adjusted separately from centrifugal load.
The second style which is the Borg & Beck style is somehow similar to the Long style. In fact, it is even considered as the street version of the Long style pressure plate. It can be identified by the somewhat wider three fingers that release plate pressure by compressing the coil springs found under the pressure plate “hat.”
The diaphragm pressure plate, on the other hand, uses a single, large Bellville-style spring to load the pressure plate. This style of spring poses some advantages. First, it loads the pressure plate evenly since the pressure is equally applied to the entire plate assembly. Second, and more importantly, as the Bellville spring is compressed, it reaches a point where the pedal effort decreases when the spring over-centers therefore makes holding the clutch pedal in at a stoplight much easier than a coil spring type pressure plate.
A defective Mercedes Benz pressure plate may cause different problems. One is clutch clutter which may be attributed to damaged pressure plate release levers. Another problem is clutch slippage which can be caused by a damaged pressure plate and a dragging clutch which can be caused by damaged pressure plate-clutch drag.
Nowadays, pressure plates have constantly improved their main and primary responsibility, which is to obtain increased holding power.
It's therefore necessary to regularly check your Mercedes Benz pressure plate to avoid problems and to replace it immediately when the need arises.
About the Author
Dwyane Thomas is a part time cook and full-time auto-enthusiast. This 31-year old Civil and Environmental graduate is a consultant at one of the engineering firms in Pennsylvania.
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Norton Primary Drive Locking Bar - FL. Each $32.63 Manufacturer: Norton. Each. Features and Benefits: This tool is used to lock the primary chain for removal and installation of the sprocket and clutch nuts Fits: all 4 speed Big Twins and 5 speed FXST models Black Oxidized finish Made in the U.S.A. 2 ye |
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Chrome Vented Primary Cover $279.95 Drag Specialties Chrome Vented Primary Cover For use with belt drive systems that fit in stock primary covers Custom look for your bike Increased airflow keeps the clutch and belt cool for longer life Uses three-hole derby cover |
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Primary Chaincase Lube $12.99 V-Series Primary Chaincase is a selective blend of synthetic and petroleum based fluids designed to protect all critical drive components found in Harley? and aftermarket chaincases. Provides the highest degree of protection and smooth, positive clutch operation. Features: Synthetic blend technology Excellent shock load and extreme pressure protection Provides smooth, positive clutch activation Superior anti-rust and oxidation protection |
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Scorpion Billet Clutch $494.99 Barnett Scorpion Billet Clutch Twice the friction area of your stock clutch with positive engagement and release CNC-machined from billet aluminum Designed to use six heavy-duty coil springs instead of a diaphragm spring to handle increased horsepower Friction plates are compatible with any primary oil No machining necessary for installation; bolt it on using the original clutch shell Kits include clutch hub, drive plates, , driven platestwo sets of clutch springs, pressure plate and necessary hardware **Note: 00-06 FLST/FXST and 99-06 FLT?models with OEM hydraulic clutch |
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Clutch Kit by Crown Automotive $236.99 1980-81 Jeep CJ;6 or 8-cylinder engines;10-1/2 in. clutch;Kit includes: pressure plate, clutch disc and throw out bearing JEEP CJ5 CJ7 SCRAMBLER 1980 1981 4.2L (258) 5L (304) GAS Clutch Kit by Crown Automotive |
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Clutch Plate by Crown Automotive $116.99 1991-96 Jeep XJ Cherokee;2.1L Diesel;Pressure plate only Clutch Plate by Crown Automotive |
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Clutch Cable by Crown Automotive $28.99 1965-71 CJ5;With 225 V6 engine;58.25 OAL;For use with single cable applications Clutch Cable by Crown Automotive |
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Clutch cable by Crown Automotive $23.99 1972-75 Jeep CJ;AMC V8 engines;74 in. long with boot Clutch cable by Crown Automotive |
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Clutch Disc by Advance Adapters $128.99 10-1/2 in. x 1 in.;14 spline;For use with AX-5 conversion bellhousing Clutch Disc by Advance Adapters |
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Norton Primary Drive Locking Bar - Big Twins. Each $33.21 Manufacturer: Norton. Each. Features and Benefits: This tool is used to lock the primary chain for removal and installation of the sprocket and clutch nuts Fits: 5 speed FXR and FLT Big Twins Black Oxidized finish Made in the U.S.A. 2 year manufacturers |
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Norton Primary Drive Locking Bar - Twin Cam. Each $33.21 Manufacturer: Norton. Each. Features and Benefits: This tool is used to lock the primary chain for removal and installation of the sprocket and clutch nuts Fits: 2006 Dyna and 2007 Twin Cam Black Oxidized finish Made in the U.S.A. 2 year manufacturers d |
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Northcoast Tool NCT5611T Primary Drive Locking Bar Twin Cam $51.3 This tool is used to lock the primary chain for removal and installation of the sprocket and clutch nuts. Fits: 2006 Dyna and 2007 Twin Cam. Black Oxidized finish. Made in the U.S.A. Dimension: 9 L x 7 W x 0.5 H. |
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Northcoast Tool NCT5611B Primary Drive Locking Bar Big Twins $51.3 This tool is used to lock the primary chain for removal and installation of the sprocket and clutch nuts. Fits: 5 speed FXR and FLT Big Twins. Black Oxidized finish. Made in the U.S.A. Dimension: 9 L x 7 W x 0.5 H. |
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Northcoast Tool NCT5611F Primary Drive Locking Bar FL $51.3 This tool is used to lock the primary chain for removal and installation of the sprocket and clutch nuts. Fits: all 4 speed Big Twins and 5 speed FXST models. Black Oxidized finish. Made in the U.S.A. Dimension: 9 L x 7 W x 0.5 H. |
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Clutch Kit for Jeep by Crown Automotive $218.99 1967-71 Jeep CJ;4-cylinder engine;Clutch kit includes 9.5 in. clutch disc, clutch cover and release bearing JEEP CJ5 CJ6 1967 1968 1969 1970 1971 2.2L (134) 3.1L Diesel (192) 3.7L Dauntless (225) DIESEL GAS Clutch Kit for Jeep by Crown Automotive |
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Jeep Clutch Kit; Clutch Kit for Jeeps; Jeep Clutch Kit by 4WD 493007 $293.96 1972-75 Jeep CJ;232, 258 and 304 engine;10-1/2 in. clutch JEEP CJ5 CJ6 1972 1973 1974 1975 3.8L (232) 4.2L (258) 5L (304) GAS Jeep Clutch Kit; Clutch Kit for Jeeps; Jeep Clutch Kit by 4WD 493007 |
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Jeep Clutch Kit; Clutch Kit for Jeeps; Jeep Clutch Kit by 4WD 493008 $310.96 1972-75 Jeep CJ;232, 258 and 304 engine;11 in. clutch JEEP CJ5 CJ6 1972 1973 1974 1975 3.8L (232) 4.2L (258) 5L (304) GAS Jeep Clutch Kit; Clutch Kit for Jeeps; Jeep Clutch Kit by 4WD 493008 |
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Jeep Clutch Kit; Clutch Kit for Jeeps; Jeep Clutch Kit by 4WD 493009 $293.96 1976-79 Jeep CJ;258 and 304 engine;10-1/2 in. clutch JEEP CJ5 CJ7 1976 1977 1978 1979 4.2L (258) 5L (304) GAS Jeep Clutch Kit; Clutch Kit for Jeeps; Jeep Clutch Kit by 4WD 493009 |
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Jeep Clutch Kit; Clutch Kit for Jeeps; Jeep Clutch Kit by 4WD 493010 $266.96 1980-81 Jeep CJ;258 and 304 engine;10-1/2 in. clutch JEEP CJ5 CJ7 1980 1981 4.2L (258) 5L (304) GAS Jeep Clutch Kit; Clutch Kit for Jeeps; Jeep Clutch Kit by 4WD 493010 |
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Jeep Clutch Kit; Clutch Kit for Jeeps; Jeep Clutch Kit by 4WD 493011 $233.96 1982-86 Jeep CJ;258 and 304 engine;10-1/2 in. clutch JEEP CJ5 CJ7 1982 1983 1984 1985 1986 4.2L (258) GAS Jeep Clutch Kit; Clutch Kit for Jeeps; Jeep Clutch Kit by 4WD 493011 |
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Jeep Clutch Kit; Clutch Kit for Jeeps; Jeep Clutch Kit by 4WD 493012 $283.96 1980-86 Jeep CJ;258 and 304 engine;11 in. clutch JEEP CJ5 CJ7 1980 1981 1982 1983 1984 1985 1986 4.2L (258) 5L (304) GAS Jeep Clutch Kit; Clutch Kit for Jeeps; Jeep Clutch Kit by 4WD 493012 |
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Jeep Clutch Kit; Clutch Kit for Jeeps; Jeep Clutch Kit by 4WD 493013 $269.96 1980-83 Jeep CJ;GM 151 4-cylinder engine;9-1/8 in. clutch JEEP CJ5 CJ7 1980 1981 1982 1983 2.5L Iron Duke LX8 (151) GAS Jeep Clutch Kit; Clutch Kit for Jeeps; Jeep Clutch Kit by 4WD 493013 |
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Jeep Clutch Kit; Clutch Kit for Jeeps; Jeep Clutch Kit by 4WD 493014 $276.96 1980-86 Jeep CJ;AMC 150 4-cylinder engine;9-1/8 in. clutch JEEP CJ7 1983 1984 1985 1986 2.5L (150) GAS Jeep Clutch Kit; Clutch Kit for Jeeps; Jeep Clutch Kit by 4WD 493014 |
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Jeep Clutch Kit; Clutch Kit for Jeeps; Jeep Clutch Kit by 4WD 493015 $469.96 1987-90 Jeep YJ Wrangler;AMC 150 4-cylinder engine;9-1/8 in. clutch JEEP WRANGLER (87-95YJ) ISLANDER LAREDO S SAHARA SPORT 1987 1988 1989 1990 2.5L (150) GAS Jeep Clutch Kit; Clutch Kit for Jeeps; Jeep Clutch Kit by 4WD 493015 |
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Jeep Clutch Kit; Clutch Kit for Jeeps; Jeep Clutch Kit by 4WD 493016 $397.96 1987-89 Jeep YJ Wrangler;258 6-cylinder engine;Peugeot transmission;10-1/2 in. clutch JEEP WRANGLER (87-95YJ) ISLANDER LAREDO S SAHARA SPORT 1987 1988 1989 4.2L (258) GAS Jeep Clutch Kit; Clutch Kit for Jeeps; Jeep Clutch Kit by 4WD 493016 |
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Jeep Clutch Kit; Clutch Kit for Jeeps; Jeep Clutch Kit by 4WD 493017 $456.96 1989-90 Jeep YJ Wrangler;258 6-cylinder engine;AX-15 transmission;10-1/2 in. clutch JEEP WRANGLER (87-95YJ) ISLANDER LAREDO SAHARA 1989 1990 4.2L (258) GAS Jeep Clutch Kit; Clutch Kit for Jeeps; Jeep Clutch Kit by 4WD 493017 |
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Jeep Clutch Kit; Clutch Kit for Jeeps; Jeep Clutch Kit by 4WD 493018 $457.96 1992-93 Jeep YJ Wrangler;258 6-cylinder engine;AX-15 tranmission;10-1/2 in. clutch JEEP WRANGLER (87-95YJ) ISLANDER RENEGADE S SAHARA 1992 1993 4L Power Tech (242) GAS Jeep Clutch Kit; Clutch Kit for Jeeps; Jeep Clutch Kit by 4WD 493018 |
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Clutch Disc by Centerforce for Jeep $111.99 1968-71 5.7L 350 V8 engine;Clutch disc;11 in. diameter x 1-1/8 in.-12 spline JEEP J-100 J-2500 J-2600 J-2700 J-3500 J-3600 J-3700 J-3800 WAGONEER 1969 1970 1971 5.7L Buick Small Block (350) 5.7L Rocket (350) GAS Clutch Disc by Centerforce for Jeep |
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Omix-Ada 16901.06 - Clutch Kit by Omix-Ada $217.99 1972-75 Jeep CJ;6 and 8-cylinder engine;10.5 in. clutch;Clutch kit includes clutch disc, clutch cover and release bearing JEEP CJ5 CJ6 1972 1973 1974 1975 3.8L (232) 4.2L (258) 5L (304) GAS Omix-Ada 16901.06 - Clutch Kit by Omix-Ada |
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Jeep Clutch Linkage Kits; Clutch Linkage Kits for Jeeps by 4WD 493003 $114.86 1976-86 Jeep CJ;Includes body bracket, bellhousing bracket, clutch rod pedal to bellcrank, clutch rod boot, clutch bellcrank and 2 bellcrank bushings JEEP CJ5 CJ7 SCRAMBLER 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 2.5L (150) 2.5L Iron Duke LX8 (151) 3.8L (232) 4.2L (258) 5L (304) GAS Jeep Clutch Linkage Kits; Clutch Linkage Kits for Jeeps by 4WD 493003 |
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Jeep Clutch Linkage Kits; Clutch Linkage Kits for Jeeps by 4WD 493004 $99.86 1972-75 Jeep CJ;Includes clutch rod assembly pedal to bellcrank, clutch rod boot, 2 bellcrank boots, 2 bellcrank bushings, 2 bellcrank bushing clips and clutch bellcrank JEEP CJ5 1972 1973 1974 1975 3.8L (232) 4.2L (258) 5L (304) GAS Jeep Clutch Linkage Kits; Clutch Linkage Kits for Jeeps by 4WD 493004 |
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Jeep Clutch Rod 16919.27 $17.99 1972 to 1975 CJ5 JEEP CJ5 1972 1973 1974 1975 3.8L (232) 4.2L (258) 5L (304) GAS Jeep Clutch Rod 16919.27 |
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Traxxas Primary Clutch Assembly TRA5390 $28.98 Traxxas replacement primary clutch assembly for the Revo. This part is located within the twospeed transmission. Constructed of aluminum and steel. One 2 x 9.8mm pin and one 6 x 8 x 0.5mm washer are included. |
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Clutch Disc by Crown Automotive for Jeep $81.99 Clutch Disc JEEP CJ5 CJ6 CJ7 SCRAMBLER 1972 1973 1974 1975 1980 1981 1982 1983 3.8L (232) 4.2L (258) 5L (304) GAS Clutch Disc by Crown Automotive for Jeep |
