Buick Engine >> HARMONIC BALANCER BOLT
Buick Engine >> HARMONIC BALANCER BOLT
Problem On Replacing Harmonic Balancer Bolt On Some
Buick Built 3.8L (231 CID) V6 Engines
When the crankshaft in the subject engine is replaced, the original harmonic balancer bolt may not fit the crankshaft.
Some replacement crankshafts have been drilled and tapped for a 3/4 - 16 bolt instead of the original 5/8 - 18 bolt.
The OEM replacement bolt (3/4 - 16) and washer are:
Bolt No. 271629
Washer No. 1199944
The AERA Technical Committee
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