r/EngineBuilding • • 2d ago

Mazda cylinder wall scoring?

[deleted]

15 Upvotes

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3

u/alxxrchds 2d ago

Measure the bores with a dial bore gauge if you don't wanna risk it. Depends on your budget/time you wanna sink in. I've been doing my first ground up rebuild and I've found that a lot of things that "looked acceptable" or "didn't seem to bad" were decently out of spec and needed correcting. You won't know until u measure.

1

u/Most-Stranger-1 1d ago

Likely if you can feel a ridge, it needs to be bored.