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Old 12-26-2024, 06:33 PM   #3
callisto
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I don’t have engine assembly experience, but some triage thoughts for you to check if you have not already - once in a while a naive eye can help:

https://www.ft86club.com/files/BRZengine.pdf

This is presumably for at-launch 2013 engines; page EM-120 is where you’re at; your journal diameter measurement is in bounds. There are other measurements recommended, all the way back from EM-107 forward; are they all in scope as well? Especially re: piston diameter and crankshaft tolerances, though this is where I declare inexperience and tap out.

My 2019 service manual has a different/tighter upper tolerance on crankshaft journal diameter (max 68.003) on page IN-15. I didn’t check the other figures (though I see one of the crank shaft bearing thickness limits tightened as well) but duly noted since you’re probably across the facelift boundary.

Chances are, you’re already familiar with all of this, so this is unhelpful; but if somehow it pans out, cheers.
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