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My 750F2 project.
Cb750r:
Broke out the tiny paints for some details last night.
Cb750r:
Disappointing day on the Engine rebuild front. I had my cylinders bored at a local machinist and they over shot the clearances. I showed the guys the piston specs and left the paper with them in the box of pistons. I don’t think they bothered to read them. Piston/bore clearance should be .0025" but they came out at .0040 confirmed by another machinist.
I was suspicious of it when I dry fitted the piston without rings and it seemed looser than any other fresh piston I’ve installed. Im working on a solution, but I’m pretty frustrated and not sure how much luck I will have at getting the shop that ruined my cylinders to cough up a refund.
McCabe-Thiele (Ted):
That's dreadful - they need to sort some replacement liners and do it correctly.
Cb750r:
--- Quote from: McCabe-Thiele (Ted) on February 07, 2024, 01:01:52 AM ---That's dreadful - they need to sort some replacement liners and do it correctly.
--- End quote ---
Thanks,
It’s a crappy deal, I work in the automotive parts wholesale industry and the machine shop I had do the work is also my customer which is going to make this resolution quite tough to manage.
I might have a back up cylinder lined up to get machined, just working out details.
Bryanj:
Problem you have is þhe clearance they have used is fine for cars and if that is what they do most they will argue they are right and you are wrong.
Clearance for Honda pistons is 1 thou, i dont know about the special kits.
I just had problems with a 550 block so i willdo the extra for nothing and pay for machining i cant do, a reputable machinist should repair for free
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