tooter's manifold adventure... - Toyota Yaris Forums

why? · 01-30-2013, 12:13 PM

except that is not the case. That was the case in the 60's, and is still the case today in some larger v-8's, but it is in no way the case in a modern 4 cylinder engine.

Have you taken a look at the Yaris' pulley? There is basically no rubber on it at all. A modern 4 cylinder engine is balanced internally, that is the engine itself is harmonically balanced, and it does not need external harmonic dampeners of any type.

how many millions of problem free miles do aftermarket pulleys need for this talk to finally be buried like the falsity it is?

01-30-2013, 12:13 PM	#11
why? Only Happy When it Rains View User's Garage Drives: Yaris LB Join Date: Jan 2006 Location: harnett county NC Posts: 4,097	except that is not the case. That was the case in the 60's, and is still the case today in some larger v-8's, but it is in no way the case in a modern 4 cylinder engine. Have you taken a look at the Yaris' pulley? There is basically no rubber on it at all. A modern 4 cylinder engine is balanced internally, that is the engine itself is harmonically balanced, and it does not need external harmonic dampeners of any type. how many millions of problem free miles do aftermarket pulleys need for this talk to finally be buried like the falsity it is? __________________ Colin Chapman disciple

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