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Piston Rings & Honing
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Topic: Piston Rings & Honing (Read 1721 times)
rohan696
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Posts: 25
Piston Rings & Honing
«
on:
March 12, 2024, 12:31:26 PM »
What is your opinion on honing cylinder walls? I am installing new piston rings on my M696 pistons and the cylinder walls do already have original cross-hatching- should I still hone the cylinder walls before installing the pistons with new piston rings?
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rohan696
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Piston Rings & Honing
«
Reply #1 on:
March 12, 2024, 12:32:08 PM »
What is your opinion on honing cylinder walls? I am installing new piston rings on my M696 pistons and the cylinder walls do already have original cross-hatching- should I still hone the cylinder walls before installing the pistons with new piston rings?
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RB
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Re: Piston Rings & Honing
«
Reply #2 on:
March 12, 2024, 12:35:23 PM »
Yes, it needs fresh hatching for the new rings to seat properly.
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ducpainter
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DILLIGAF
Re: Piston Rings & Honing
«
Reply #3 on:
March 12, 2024, 12:51:36 PM »
Cylinders should be honed when re-ringing to remove any glaze that is present. A ball hone is the proper tool.
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"Once you accept that a child on the autistic spectrum experiences the world in
a completely different way than you, you will be open to understand how that
perspective
is even more amazing than yours."
To realize the value of nine months:
Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent.”
stopintime
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Re: Piston Rings & Honing
«
Reply #4 on:
March 12, 2024, 01:28:32 PM »
I've done both with and without honing. Still no idea with which results. Difference? Don't know. Same/similar durability.
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237,000 km/sixteen years - loving it
ducpainter
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DILLIGAF
Re: Piston Rings & Honing
«
Reply #5 on:
March 12, 2024, 01:46:33 PM »
I thought I posted, but it's not here.
I suggest honing with a ball hone to remove any glaze.
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"Once you accept that a child on the autistic spectrum experiences the world in
a completely different way than you, you will be open to understand how that
perspective
is even more amazing than yours."
To realize the value of nine months:
Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent.”
rohan696
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Re: Piston Rings & Honing
«
Reply #6 on:
March 12, 2024, 06:08:16 PM »
Thank you, everyone. I'll use a ball hone as suggested.
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Howie
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Re: Piston Rings & Honing
«
Reply #7 on:
March 12, 2024, 06:35:47 PM »
Emphasis on "any glaze". And make sure you clean the cylinders very well. You do not want to hurt the nikasil coating. White cloth until you see no gray.
For the last three or four decades there has been two camps, hone band don't hone. Big reason for the two camps is engine failure from grit.
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koko64
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Re: Piston Rings & Honing
«
Reply #8 on:
March 12, 2024, 09:42:24 PM »
The Nikasil coating is just that, a coating. Don't go honing it enthusiastically like old school steel cylinder sleeves or cast iron barrels. Be careful to get hold of the appropriate tool for the job, so see your local hot rod shop for advice. Sometimes a pan scrubbing pad (not steel) and parts cleaner can be enough. The appropriate honing tool will be on the gentle end of the spectrum and there must be new tools out nowadays. The honing tool I used on my old T140 and Shovelhead will be pretty brutal on Nikasil.
«
Last Edit: March 12, 2024, 09:45:24 PM by koko64
»
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2015 Scrambler 800
rohan696
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Re: Piston Rings & Honing
«
Reply #9 on:
March 13, 2024, 08:45:43 AM »
Thanks, guys, and now I'm having second thoughts haha... what do you recommend using to clean the bores?
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ducpainter
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DILLIGAF
Re: Piston Rings & Honing
«
Reply #10 on:
March 13, 2024, 09:19:30 AM »
Koko is right about it being a coating, but...I know that used cylinders, when being recoated, the thickness can be adjusted to properly clearance the pistons.
That said, if you're scared, use a red scotchbrite pad with some kerosene, or diesel fuel, and lightly scour the bores. That will not remove the coating..
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"Once you accept that a child on the autistic spectrum experiences the world in
a completely different way than you, you will be open to understand how that
perspective
is even more amazing than yours."
To realize the value of nine months:
Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent.”
rohan696
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Posts: 25
Re: Piston Rings & Honing
«
Reply #11 on:
March 13, 2024, 04:51:42 PM »
Got it. What do you think about this-
https://www.harborfreight.com/4-in-180-grit-abrasive-ball-61184.html?utm_source=google&utm_medium=cpc&utm_campaign=19231709222&campaignid=19231709222&utm_content=141253582541&adsetid=141253582541&product=61184&store=577&gad_source=1&gclid=Cj0KCQjwncWvBhD_ARIsAEb2HW9tt4eSfeFAlqxkA8B70X7OoNrHStEdnS4GTd9UBWcu6zKiVgyPyL0aAnsxEALw_wcB
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ducpainter
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Re: Piston Rings & Honing
«
Reply #12 on:
March 14, 2024, 02:58:05 AM »
I was thinking by hand but as long as you use your head, and don't overdo it, you should be OK.
Maybe two, or three, strokes in each cylinder? All you want to do is remove any glaze.
BTW...I merged your topics. It will be easier for people to follow along with what happened.
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"Once you accept that a child on the autistic spectrum experiences the world in
a completely different way than you, you will be open to understand how that
perspective
is even more amazing than yours."
To realize the value of nine months:
Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent.”
rohan696
New Member
Offline
Posts: 25
Re: Piston Rings & Honing
«
Reply #13 on:
March 14, 2024, 10:48:51 AM »
OK, thanks, that's easier and gives me more control over what I'm doing. Before I go at it though, I think I'll take both cylinders to Ducati and see what they think as well. What do you recommend to remove carbon from the piston and top of the cylinder- ATF/gasoline/degreaser?
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Howie
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Re: Piston Rings & Honing
«
Reply #14 on:
March 14, 2024, 06:21:49 PM »
Hard work with carburetor cleaner or
https://orisonmarketing.com/products/piston-kleen%E2%84%A2
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