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05-22-2006 09:52 PM #1
a very sharp center punch and hit them on center drill and ezout
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05-22-2006 09:53 PM #2
i tried that on one and it just did not want to stay centered... im thinking about drilling it out and and using some heli coils
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05-22-2006 09:57 PM #3
heli coils would work on valve covers, they dont require much torque...... sounds like the guy WAY overtightened those bolts... they only need to be hand tightjust because your car is faster, doesn't mean i cant outdrive you... give me a curvy mountain road and i'll beat you any day
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05-22-2006 09:59 PM #4
yeah man i dont know 3 out of 4 bolts?lol
oh well i had like 6 punches from 3 garages and none of em would work...
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05-22-2006 10:10 PM #5
theyre just like the regular bolts for the centerbolt valvecovers
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05-23-2006 04:09 AM #6
I'm like you, I've never had great results with EZ outs. I have a hard time getting the drilled hole dead center.
What I have done sometimes is to centerpunch it like Pat and the others said, but then use a very tiny drill bit to do the first hole, then move up from there. I have never used the left handed bits, but our Techs have, and like them.
By the way, the gold drill bits that Harbor Freight sells are awesome. They put sets of them on sale all the time, and I find them to be very sharp and they stay that way for a long time. It is one of the better deals at HF.
Don






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