Cylinder Hone size

[henryg]

Is a 4-1/8" (105mm) Flex-hone appropriate for a stock 1.8 KR (87.5mm bore I believe)?

From my searching on the web I found that the maximum Hone size is 1/2" larger than the bore, so I may have been a little optimistic purchasing one that is 1/8" over this..

What is the best amount the hone should be larger than the bore?

Henry

[gldgti]

I'm pretty sure the KR bore is about 81mm... which makes your 105mm hone 24mm bigger.

i'm not sure if thats too big. I would have said go ahead if the bore was actually 87.5mm, but pretty sure its about 81mm. hope that helps.

[henryg]

I just got home and roughly measured it then, and you're right its closed to 81mm.. Not a problem, I can return the hone, But what size do I buy?

[roccodingo]

Flexi hone I use is about 3 3/4 " Dia, red tell tale for grit grade ( from a rusty memory ) Use light or honing oil ( NOT kero or any solvent based lube ) Make sure you THOROUGHLY clean the block after, should be able to wipe the bore with a clean lint free rag and have no residue whatsoever on it.

HTH

[Jace]

Good to hear you're onto major stuff Henry!

[henryg]

Cheers guys, and yep it's good to be finding time to get my hands dirty!