Originally posted by Terry Haines:
Why then have Ford gone to a revised damper on all 2.5 V6 Duratecs if their isn't an issue?...
Not to dowmplay reliabilty improvements, but there are other considerations:
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Montero Sport V6's are also equipped with dual-mass crankshaft pulley damper that helps quiet and smooth the engine
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http://www.honda-newsletter.co.uk/sept2001/generation/ .....
Achieving high levels of refinement has been a key priority in these latest Civic models and NVH measures include an engine undercover, thicker urethane foam insulation in the front bulkhead area, thicker floor mat insulators, and noise-absorbing felt backing on the fascia. The engine itself features a high-performance acoustic cover and a dual damper-type crank pulley, while a higher inertia flywheel further improves refinement levels.
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Obvioulsy less noise also equals less vibes that the crank withstands, obviously you guys would know better if it was reliability or NVH that drove the duratec change.
