Spun bearing after procharger install
04-02-2015, 05:31 AM
#1
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Piston failure after procharger install
Well I am pretty sick to my stomach right now. I installed my d1 procharger, gauges, and blackbear tune this week. Truck (2011 6.2 Silverado 39k miles) started and idled fine. I took it around the block last night and never went above 3/4 throttle and just rolled into it. Truck pulled hard boost stayed below 8psi and air to fuel was a tad rich. On the last road before my house I did one more 3/4 throttle run up to about 90 and when I let off I heard a bad tapping. I thought I blew a belt and it was flinging around but when I pulled it in garage I could defiantly hear it was motor noise. Extreme bad rod knock. I'm guessing it spun a bearing but I am at a complete loss on how.
So any sure way to check? I was thinking about dropping the pan and inspecting what I could. All I've been thinking is wow this is going to be expensive. If it did spin a bearing what all is usually trashed and what can be re used?
So any sure way to check? I was thinking about dropping the pan and inspecting what I could. All I've been thinking is wow this is going to be expensive. If it did spin a bearing what all is usually trashed and what can be re used?
Last edited by Delaware ss; 04-06-2015 at 09:54 PM.
04-02-2015, 10:24 AM
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Had the same thing happen to me when I installed my turbo. Checked everything. Couldn't find the problem. Tore apart block and found 7 of 8 rods bent. Those powder metal rods are junk. Never went over 4psi. Now it's honed and forged 416ci. Good luck with yours. Hopefully it's something inexpensive.
Piston slap - not my pic but this is what my rods looked like.
Piston slap - not my pic but this is what my rods looked like.
Last edited by sierra416; 04-02-2015 at 08:31 PM.
