08-08-2011, 05:20 PM
So here's the deal... Did the first rebuild on my C-15 (6NZ) recentley at 800 000 Miles, and 35 000 hours.. Worked great , just was pressurizing the coolant (due to a blown head gasket, which was due to a cracked sleeve) Replaced everything but the injectors water pump and oil pump. I have only put about 500 kms (200 or so miles) on it since getting it back, but now it seems to have a little bit of a "flutter" in it. bThought the vales may have seated so I had them reset with no change. Before the rebuild I use to be able to get 40-42lbs of boost easily, now I can only get 30-34 and it takes a little longer to spool up. Any ideas on what the issue would be? Im thinking sticking injectors, but the cut out test didnt really seem to reveal much.