quantum555

i was talkin with some guys and one mentions that the crankpulley has a harmonic balancer that is not replaced with aftermarket pulleys and could mess up the motor. i did not really catch the whole story but i figured i would run this by an audience for input. they may have been talking about a supra...i was tired<IMG src=smileys/smiley5.gif border="0">

mdvaldosta

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SilverGTV8

4.6 motors need not to worry a good kit has the dampner (I.E. Steeda). Aslong as rotating mass in balanced no balancer change is needed

4HoleKraut

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This is not necessarily correct. Probably would not be as likely to create problems on a 5.0 as say a 2.3SVO.On a 4 cylinder, using a non dampered pulley could create excess vibration in the crank which would ordinarily be absorbed by the damperwhich could in turn cause excess wear in the main bearings. Due to a more frequent power (combustion) stroke in an 8 cylinder, the wear on the main bearings would likely be decreased if not totally diminished (compared to a 4 cyl.) by the lack of a damper. I have notpersonally experiencedthis but I have torn down an engine and this was the result from an undamped pulley. Again- this was a 4cyl, not an 8 cyl.</P><edited><editID>4HoleKraut</editID><editDate>37905.6524189815</editDate></edited>

vshayes

I guess I wasn't paying attention as well as I should have, I understood what he said as saying that if you don't replace your balancer when you put aftermarket pulleys you could mess up your motor. I have yet to see a crank pulley that doubled as a harmonic balancer on a 5.0. As far as other engines, if the balancer is part of the crank pully, well then that kit would come with the balancer.</P>


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vshayes

That was Joe (mdvaldosta) He forgot to change IDs on the CPU