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K20 Camshaft Discrepancy

1386 Views 5 Replies 3 Participants Last post by  TheLastMentor, 
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All, my stock FD2 had relatively high camshaft wear hence I switched it with an identical pair from the same model and make as my car. My mech also verified that it bolts on perfectly but pointed out what I am also about to share.
Its been months since its install but the following has been bugging me. The surfaces I have circled out are very different, even my mech said it looks and feels different (when you run your hand on it) to the stock ones I had on the car. Can anyone clue me in on this?
I am unable to find an explanation.
Photos below for reference.
Mine:
Motor vehicle Automotive exhaust Rim Automotive tire Gas

Motor vehicle Gas Automotive exhaust Vehicle Auto part


The "new" cams:
Product Yellow Material property Font Rectangle

Textile Material property Rectangle Tints and shades Pattern
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T
looks like heat tracing. example :Ti burnt exhaust studs

i am saying the 1st thing that comes to mind here, while grinding someone did not use enough oil while grinding those cams.
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