Piston damage, Is this piston toast? |
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Piston damage, Is this piston toast? |
Phoenix914 |
Jan 4 2021, 12:25 PM
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#1
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Member Group: Members Posts: 389 Joined: 6-December 06 From: Oviedo, FL Member No.: 7,322 Region Association: South East States |
Happy New Year!
I just cleaned up the pistons for my rebuild and found some pitting on one of them after all the carbon was removed. This piston was at #1 cylinder. Is it unusable? I'm certain they are NPR 96mm pistons from a late-80's rebuild. I already bought new rings! Any opinions would be appreciated. |
Mark Henry |
Jan 5 2021, 07:23 AM
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#2
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
I've built many engines with used jugs and slugs, if everything specs out I wouldn't have a problem using this piston.
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ejm |
Jan 5 2021, 07:36 AM
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#3
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I can see the light at the end of the tunnel Group: Members Posts: 2,693 Joined: 3-February 03 From: Massachusetts Member No.: 224 Region Association: None |
I've built many engines with used jugs and slugs, if everything specs out I wouldn't have a problem using this piston. (IMG:style_emoticons/default/agree.gif) Looks like FOD to me. I've seen far worse. Check that the rings move freely, dress the raised areas with a file and reuse it. Years from now the engine will fail for some other reason. |
Phoenix914 |
Jan 5 2021, 08:27 AM
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#4
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Member Group: Members Posts: 389 Joined: 6-December 06 From: Oviedo, FL Member No.: 7,322 Region Association: South East States |
I've built many engines with used jugs and slugs, if everything specs out I wouldn't have a problem using this piston. (IMG:style_emoticons/default/agree.gif) Looks like FOD to me. I've seen far worse. Check that the rings move freely, dress the raised areas with a file and reuse it. Years from now the engine will fail for some other reason. I'll go to work with a file sometime over the next couple of days and then post more pictures. Thanks for your experienced opinions (IMG:style_emoticons/default/beer.gif) |
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