s3000 nikasil motor do you hone them when reringing?

[R.grover]

I have a couple of merc s3000 motors I'm putting new pistons in do you hone the sleves? if so what type of hone?

[Steve Pope]

If bores are not egg shaped then deglaze with aluminium oxide brush and finish with a plateau brush hone.

[Onetime]

Merc recommends not honing. Need special equipment to properly do them. Usually Diamond honing stones. You're better off leaving them be if you don't have the right tools.

[RBT]

Ball hone, from goodson. 320 grit with wd-40. Then a plateau brush.

[RichS]

Or maroon scotchbrite.

[R.grover]

Thanks guys for the advise, my bores are just glazed so I wana tidy them up

[Steve Pope]

Be sure to use Aluminium oxide ball hone (I call them a brush hone)and wash up block with hot soapy water until a white cloth comes out of the bores white.