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01-31-2017, 07:36 PM
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#1 |
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Not Yet Wild
Join Date: Nov 2016
Posts: 17
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G29 Hole in Piston
I am rebuilding my G29 for low compression. As I started breaking it down I expected a ring issue. What I see is a hole in the piston.
What would cause this. I have attached a picture of it. |
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01-31-2017, 07:50 PM
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#2 |
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Sometime's............
 Join Date: Oct 2007
Location: Tacoma Washington
Posts: 11,875
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Re: G29 Hole in Piston
I don't believe that is a hole, just a casting mark...but I could be wrong. What I can see is the unbalance of the piston in the bore. You just won't know till you pull the piston and check the bore. I have the advantage of honing and installing standard ring and check for ring end gap. But a good test is hone and slide the piston in and check for abnormal play. Hate to say it, but it looks like an .25 over piston and a bore job.
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01-31-2017, 08:33 PM
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#3 |
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Not Yet Wild
Join Date: Nov 2016
Posts: 17
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Re: G29 Hole in Piston
Thanks for the info. I just got my .25 kit. Just waiting on the clutch removal tool to get here to break it down completely and send it off for the bore job.
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02-01-2017, 08:15 PM
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#4 |
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Over This Interview Is...
Join Date: Jun 2012
Location: AZ
Posts: 17,449
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Re: G29 Hole in Piston
It's not a hole, don't worry.
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