Harmonic Balancer

Reddogtheo

Observer
This is only to warn others with the old fg637s.Heard a slight noise in the front area of the motor on investigation found Harmonic balancer rubber has perished after 19 years . Today was one of those tools in hands day, not a hard job only getting the 36mm nut undone caused some grief needed to borrow a 1 inch drive rattle gun and 4ft torque wrench as mine does not tighten to 590nm.
While all the front end was apart I fitted new ac compressor and dryer and new rubbers on all ac hoses as I had to regas the system (I did have all the parts and I am a refrigeration mechanic) Harmonic balancer is only $300 for original part. Keep in mind if I had of continued to drive the results could have been a disaster the noise was the balancer hitting the cast front of the motor. So keep an eye on the front of the pulley.

Mick
 

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