If you're currently in the market for an engine upgrade for your sport compact, you may encounter harmful crankshaft torsional vibrations. Fortunately, the Fluidampr viscous damper is an excellent solution to this problem. This damper reduces wear on your main bearings and timing gear while improving valvetrain operation accuracy. In addition, it helps to lower the risk of crank failure.
One of the most impressive features of the Fluidampr damper is that it can self-tune in real-time, automatically adapting to any modifications you may make to your engine. This means it consistently provides optimal damping at peak levels and various changing frequencies. As the engine revs up, torsional vibration suspends the inertia ring and reduces the weight felt on the crankshaft, allowing optimal dampening while maintaining quick revs.
This product benefits those concerned about the potential risks of turbo and NOS power surges. Additionally, it features precision machined and computer-balanced components, making it a reliable and long-lasting investment. Finally, it's worth noting that the Fluidampr damper is both SFI-approved and made entirely in the USA. It has also been ISO certified, meaning that you can rest assured that it meets the highest possible quality and safety standards.
| Fitment | 1990-2001 Honda. B series engines. |
| Bore Diameter | 1.1008" |
| Degree Marking Range | TDC, 3 timing marks 2 degrees apart |
| Degree Markings | Engraved |
| Engine Balance | Internal |
| Finish | Black Zinc |
| Keyway | Single |
| Length | 2.480" |
| Material | Steel |
| Mounting Hardware Included | No |
| Outside Diameter | 5-7/8 |
| Pulley Finish | Hard Coat Anodized |
| Safety Rating | SFI 18.1 |
| Weight / Rotating Weight | 7.8 lbs / 5.2 lbs |
Installation Instructions:
- Remove crankshaft bolt and slide off OEM damper.
- Coat Fluidampr bore and crankshaft snout with a small amount of anti-seize compound.
- Slide Fluidampr onto crankshaft.
- THROW THE OLD CRANKSHAFT BOLT AWAY AND REPLACE WITH A NEW OEM BOLT
(Honda PN 90017-PR3-003). The OEM bolt is a torque to yield bolt. Once the bolt is loosened it cannot be reused. - Torque the new OEM crank bolt to 148 ft-lbs using a torque wrench and a crankshaft holding tool.
DO NOT USE AN IMPACT DRIVER TO TIGHTENTHE CRANKSHAFT BOLT, DO NOT USE THE
CLUTCH TO HOLD THE CRANK FROM TURNING.Setting the bolt torque with an impact wrench does not
allow the bolt yield to be set properly, and holding the engine from turning by putting it in gear and applying
the brakes will allow some clutch slip and the bolt torque will not be accurate. Failure to use a new bolt and
failure to torque properly can cause the crankshaft bolt to loosen while the engine is operating.
Notes:
- Fluidamprs are designed with a tighter fit for increased damper performance.
- Check the area around the Fluidampr for possible interference with other aftermarket parts. Fluidampr 620601 will require slight trimming of the plastic timing cover to accommodate the 40% under drive pulley.
- Ensure the flywheel bolts are the correct length when using aftermarket crankshafts and flywheels. Tapped hole depths and flange thicknesses can vary enough for the flywheel bolts to bottom out. CHECK THE FLYWHEEL BOLT LENGTH IN EVERY THREADED HOLE. Add a drop of Loctite (or equivalent) to each bolt and torque flywheel bolts to the factory torque specification. DO NOT OVER-TORQUE FLYWHEEL BOLTS; THEY WILL YIELD AND FAIL. DO NOT USE AN IMPACT DRIVER TO TIGHTEN THE FLYWHEEL BOLTS. Failure to use the proper flywheel bolt length and to properly torque the flywheel bolts can cause them to back out while the engine is operating. This can cause main bearing caps to crack, fractured oil pump gears, a loose crankshaft bolt, and other internal engine damage.