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+--- Thread: Block honing (/showthread.php?tid=1846)
Block honing - ken northside - 10-06-2017
I have a Sunnen JN hone what stones do I need to hone Mac and Yamaha blocks. also have a sunnen Honing machine but have no mandals in the mac bore size. I just picked up a Superior honing machine but it has no tooling with at all Ken
RE: Block honing - jeff brown - 10-07-2017
(10-06-2017, 10:24 PM)ken northside Wrote: I have a Sunnen JN hone what stones do I need to hone Mac and Yamaha blocks. also have a sunnen Honing machine but have no mandals in the mac bore size. I just picked up a Superior honing machine but it has no tooling with at all Ken
Best bet is to call sunnen tech line . You want keyway mandrels for the machine. $500 to $700 each
RE: Block honing - ken northside - 10-07-2017
Jeff why keyway mandrels I have been in a few engine shops that do 2 stroke work and looked at there sunnen mandrels and the mandrels most of them have are just a single stone mandrel.
I would just like to use the Sunnen JN hone I have with the right stones to hone the bores. I am not building top notch engines I just want to build a engine that runs well and lives plus most of the mac parts I have are old wiped race parts.
Maybe my question should have been what grit stoned to use.
jeff there is a little bit of art & science to honing engine bores.