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Honing Bores
Posted: Sat Oct 07, 2023 10:07 am
by Richard B
Can any one advise if it is OK to hone the bores on my Ariel Arrow? I understand some two strokes have a particular finish which would be damaged by honing.
Re: Honing Bores
Posted: Sun Oct 08, 2023 11:24 am
by Roger Gwynn
It is normal practise to hone after a re-bore so it would be done anyway. I don't see any problem with it.
Re: Honing Bores
Posted: Sun Oct 08, 2023 12:29 pm
by Bob.Murphy
Richard B wrote: ↑Sat Oct 07, 2023 10:07 am
Can any one advise if it is OK to hone the bores on my Ariel Arrow? I understand some two strokes have a particular finish which would be damaged by honing.
You're probably thinking of "Nicasil" plated bores - which can't be honed. My BMW 100 GS has them.
I think Nikasil is used to hard plate alloy barrels without the need of a steel liner, but I could be wrong (must look it up).
Bob.
Re: Honing Bores
Posted: Sun Oct 08, 2023 9:08 pm
by Richard B
Thanks to Roger and Bob. I think I will leave well alone for the time being.
Re: Honing Bores
Posted: Sun Oct 08, 2023 10:52 pm
by Simon.Gardiner
I've never seen anything about any special coating on a Leader/Arrow barrel - they're just 'standard' caste iron!
SG
Re: Honing Bores
Posted: Mon Oct 09, 2023 12:53 am
by nevhunter
Don't hone it with anything but a Sunnen type rigid hone. Those bottle brush lead ball things are a disaster. 2 strokes wear bigger near the Port area. Watch out for the transfer cut outs lower down.. IF it's really out of shape bore it taking out the minimum as you cant replace bored out metal. Sometimes a cast iron cylinder is quite hard, but cast in liners are soft due to the temp of the aluminium when cast. Nev