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| Volvo Engine >> REVISED CONNECTING ROD
Revised Connecting Rods On
1988-89 Volvo 2.3L B230 Engines
AERA members have reported connecting rod failures in 1988-89 Volvo B230 engines. Rod failures include both bending and actual breakage. Because of the frequency of these failures, Volvo has redesigned the connecting rod for additional strength (See illustration). Engines manufactured as of the 1990 model year use the revised connecting rod.
The revised rod features a thicker beam and has increased in weight by 40 grams. The revised rod should only be installed in complete sets of four, Volvo Part #0271451-7 (four matched rods). Substituting a revised rod, Volvo Part #3531260-2, for the former design will cause an out-of-balance condition and possible engine failure.
The AERA Technical Committee
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