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YOUR RESEARCHScratches on freshly honed Nikasil cylinders?
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Replace ."
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Suggestion
The factory recommendation is "If you can feel it with your fingernail, the liner must be replaced."
Leading evidence: 'Replace ."' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace ."' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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This is a fresh Nikasil plated cylinder. The engineering company says those scratches are common marks when honing Nikasil plating and I'm good to go with the build. Is this really the case? I can easily catch those with finger.
I wouldn't mind "a second opinion" before going forward with this build. Having those just under the piston ring travel path is a bit concerning. And especially when the idea was to fix bore scoring
Bank 2:
Bank 1:
Who did that hone job...?
Looks like they pulled the hone head after power was turning off to make those marks.
Nik cylinders require a diamond hone job to finish them to the proper rms finish to seat rings correctly. The cross hatch in your cylinders don't look like any I've ever received from Millennium Technology or US Chrome, the 2 big nik guys in USA.
But in pics its hard to tell for my olds eyes, but you say you can catch your finger nail in the cross hatch..? Thats not correct at all....
Yes, well... maybe two - one on each side of that pond...
Surprise surprise - well, not necessarily since the customer service is top notch. Those scratches will be corrected.
I work on Ferrari 355s too and they also have nikkies liners. The factory recommendation is "If you can feel it with your fingernail, the liner must be replaced."
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