PRW 23-24 PRW Sportsman and PQ Series Steel Harmonic Dampers (SFI-Rated 18.1) User Manual

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area only. If balance weight must be added, Mallory metal can be used to accomplish this. It is imperative
that the damper be balanced to the engine assembly.

Step 7
PRW external balanced dampers are also produced as close to OEM specs as possible. However, stock
dampers are made from different materials than PRW uses. Consequently, it is virtually impossible to
duplicate the exact weight. For this reason, all external balanced dampers should be match balanced to the
engine assembly.

Step 8
Use emery cloth to remove burrs, nicks, and sharp edges on damper snout and any sharp keyway corners.

Step 9
Prior to installation heat the damper in boiling water or place in a preheated oven at a maximum of 250°
Fahrenheit for 15 minutes. Use insulated heatproof gloves to handle after heating.

Step 10
Apply an anti-seize compound on crankshaft snout and in the damper hub.

Step 11
Position the damper on the crank snout. Rotate to align the keyway in the damper precisely with the key
in the crank.

Step 12
Install the damper using the proper installation tool. Do not “hammer” the damper on. (this will void the
warranty) You should meet smooth steady resistance until the damper is fully seated against the timing
gear or spacer.

Step 13
Install damper bolt and washer to proper torque specs:
Small Block Chevy: 70 foot - pounds
Big Block Chevy: 110 foot - pounds
Ford: 110 foot - pounds
Mopar: 150 foot - pounds
Pontiac, Oldsmobile, & Buick: 160 foot - pounds

Timing Check
1. Check the ignition timing marks. Note: some engines have been equipped with different timing tabs
over the years.
2. Use positive stop method to locate the true TDC (Top Dead Center). Relocate the timing tab if
necessary.

PRW Industries, Inc.

1722 Illinois Avenue

Perris, California 92571

Tele: (951) 436-7900 FAX: (951) 928-8555

Tech: (888) 377-9779