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harsh vibration after timing gear swap 120-130

posted by  uniberp on  Mon Jun 13 09:24 CST 2005
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last visit: Mon Jan 31 07:08 CST 2011
[RELATED]

There are minute differences in the timing between gearsets, so the new gear may have result in slighly different running properties than the old. The advice I took was to get a degree wheel and dial indicator and test for the actual opening, .005 lift and other valve motion, and use a stepped woodruff key to "dial" it in exactly.

This is not to say your new timing is wrong, but it may be different than your old cam timing and run slightly differently. Different engines have different harmonics.
--
MPergiel, Elmhurst, IL '74 145e T-5 'Orange Alert'






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