I an going to replace my Harmonic balancer but it appears the pulley for the serpentine belt is also a harmonic balancer. Should i be replacing them both?
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Harmonic balancer(s)
I an going to replace my Harmonic balancer but it appears the pulley for the serpentine belt is also a harmonic balancer. Should i be replacing them both?
Administrator
Welcome to the Forums!
The pulley is dampened, but it's not a "harmonic balancer". It aides isolation of the harsh Diesel combustion pulses to the accessories. It should replaced at least as often as the balancer, typically more often. If the rubber is cracked, hard, or missing, it should be replaced, in any case. Once they fail, in any way, it isn't long before it starts to sound like a bad rod-knock, or worse, and can cause damage to the belt-driven accessories.
Captain Doom
Replace the pulley! I didn't on mine, and the hammering eventually damaged the tensioner. I got the Fluidampr so I don't have to mess with the damper anymore.
'94 Barth 28' Breakaway M/H ("StaRV II") diesel pusher: Spartan chassis, aluminum birdcage construction. Peninsular/AMG 6.5L TD (230HP), 18:1, Phazer, non-wastgated turbo, hi-pop injectors, 4L80E (Sun Coast TC & rebuild, M-H Pan), Dana 80 (M-H Cover), Fluidampr, EGT, trans temp, boost gage. Honda EV-4010 gaso genset, furnace, roof air, stove, microwave/convection, 2-dr. 3-way reefer. KVH R5SL Satellite. Cruises 2, sleeps 4, carries 6, and parties 8 (parties 12 - tested).
Stand-ins are an '02 Cadillac Escalade AWD 6.0L and an '06 Toyota Sienna Limited.
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