All engines have harmonic balancers, it is simply the heavy cast pulley attached opposite the flywheel end of the engine. These pulleys usually have a rubber filled bonded area between the pulley side and the hub side, and between the weight and the flexibility of this joint natural engine vibrations are smoothed out somewhat. When in-line four engines go beyond 2000 cc displacement natural vibrations tend to increase dramatically, and internal counter rotating shafts or other exotic methods are used to dampen them. Any in line 2000cc four cylinder engine is going to vibrate at 3500-4000 rpm. Just check the mounts, exhaust, etc. for possible resonant vibrations. You might also have the front pulley, clutch and flywheel balanced next time you have the engine out. -- Stuart MacMillan Manager, Case Program 800-909-8244 ext 208 Getting your share of the Net yet? http://www.cobaltgroup.com http://www.casedealer.com/demo http://www.caseihdealer.com/demo |
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