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Block honing

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Block honing
ken northside Offline
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#1
10-06-2017, 10:24 PM
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
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jeff brown Offline
Farmington Hills, Michigan
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#2
10-07-2017, 07:16 AM (This post was last modified: 10-07-2017, 07:18 AM by jeff brown.)
(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
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ken northside Offline
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#3
10-07-2017, 09:56 AM
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.
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