Posted 1/18/2010 22:40 (#1029649 - in reply to #1029629) Subject: Re: Cat C15 twin turbo, breaks turbo mount bolts.
Iowa
Replace the housing. I know, $$$.
I hope you understood, how I measure for the parallel surface with a 6" calipers.
On the bad ones, you can "rock" your calipers back and forth, as you are trying to "squeeze" the calipers between the flat "4 bolt" surface verses that 3/8" hardened washer in that counterbore area.