Quote:
Originally Posted by Matt D.
That's seriously fucked up. I don't follow EvoX news, but has anyone anywhere reported a problem like this, even a dealer doing something on the head and having this happen?
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I'm so not a mechanic but the guys at DB said they immediately searched the Internet and found 2 or 3 similar instances. My bit of research suggests that the cam caps are custom machined for each head. It is to compensate for machining tolerances in the head itself. If the cap is torqued down even the slightest bit out of alignment then the cam will bind and break the cap.
I posted a thread on EvoXforums and I've gotten some feedback already. The immediate comment was that you have to use dowels to hold the cap in place while torquing it down and that the specs on those bolts are in in/lbs and you have to use a very good torque wrench. I obviously wasn't there when Shane did that work so I'm not going to speculate.
It's an "upgrade opportunity" as far as I'm concerned. There are a number of people on the EvoX forum that want to buy the head from DB and have a machine shop fix it. They seem to think that'll be fine. The tolerances sound rather tight to me. I dunno.
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