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Monkey early bottom, non monkey top. Poor mounting system often results in very loose shifter shaft after the fork spreads and the pin wears out. Reminds us of walking Gibbon monkey with floppy arms in the air. Makes changing gears feel like a suggestion rather than a definite answer

Dang, you sure know how to make a guy feel bad about his gearbox! 😪

Too late now, but I think buying and shipping a "refurbished" crankshaft from Japan was not necessary. You - surely?- could have had your existing crankshaft ground and polished locally to suit factory undersize bearings. You're going to be buying new bearings anyway... As mentioned, the bores appear to be scored and will require either honing or reboring. Whoever is doing that work would - again, surely? - have had either the machinery or the contacts to grind the crankshaft. L24-specific parts are not that hard to get. Most major components are available, restorable (like your L24 crank) or share parts with the other L-gata engine family. No reason to be chucking out an L24 in my opinion. !!!! At this point I'm going to bow out due to fire risk. I don't know who is helping/advising you, but it might be a good idea to change them rather than random mechanical componentry. Good luck.

Chris, If this isn't satisfactory send me an email - zspert@primary.net - w/ your mailing address and I'll put a copy in the mail to you.

Your L24 crankshaft can be reground to suit replacement bearings in a factory designated undersize. All details are in the factory service manuals (do you have one?). Forget about using an L28 crankshaft. It would lead to a domino effect of required parts (different connecting rods, pistons etc). Looks like you will (possibly) be needing a rebore of the cylinder block, due to cylinder bore scoring. That would require an oversize piston set. If your current pistons are still in good condition (although replacement piston rings are advised) the other option would be to fit cylinder liners. Again this is detailed in the factory service manuals. If yu are very lucky then a thorough honing of the cylinders might be acceptable. Surely there must be a competent engine reconditioning machine shop business in HK who can handle this? Looks like your camshaft is an aftermarket (higher performance) grind, judging by the stamps on the end of it. Was the car an original HK market version, or was it imported as a used car? The aftermarket camshaft makes me think the car has already been modified in the past.

Whenever one posts anything on any site in the on line universe one runs a considerable risk that he/she will be challenged. My answer is "let's see you do better". If you can, I'm talking first hand , personal experience, and not something from another site somewhere, I'll be among the first in line to offer congratulations. You see, I don't have anything to prove to anyone save myself. This will be my last offering of this type on this site.

@zspert Don't want to ruin hopes and expectations here, but that's not a 'Build Sheet'. It's a 'Sharyo Shikyu Hyo Ikan Hyo' document, which I would translate (with a little bit of artistic license) as a 'Vehicle Supply Movement Sheet'. It has sections for Domestic Delivery, Factory Return and Export and it would direct the onward journey of an individual car through Nissan's new car logistics and supply system.