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Old 03-28-2011, 11:37 AM   #13
the suicidal eggroll
Scooby Guru
 
Member#: 51961
Join Date: Jan 2004
Chapter/Region: RMIC
Location: Broomfield, CO
Vehicle:
2005 STi
2012 WRX

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Quote:
Originally Posted by scoobywagon06 View Post
My impact gun wouldn't budge them one of the 10mm was craftsman one was Mac and the one tht didn't break was snap-on
It doesn't matter what the manufacturer is, if it's not impact grade it's going to snap. Believe me, I've pulled a lot of heads off of these cars. The first couple took 3-4 "regular" 10mm drives to get all of the cam bolts off, the drives just kept breaking. I finally got ONE impact grade 10mm and have taken 3 engines apart (12 cam bolts) without a hiccup. All you need is an impact grade 10mm, a breaker bar, and something to keep the cam from spinning (OEM cam wrench, or the timing belt around the crank trick).

This is similar to the one I have, but the bit length is a bit shorter on mine.
Amazon.com: Proto J7441-10M 10mm X 82.6 Hex Bits 1/2 Dr Impact Metric: Home ImprovementAmazon.com: Proto J7441-10M 10mm X 82.6 Hex Bits 1/2 Dr Impact Metric: Home Improvement


There are plenty out there that will work fine. You're not going to find any of them in your local home depot or autozone though.
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