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 Post subject: OEM Honda Piston Rings
PostPosted: Mon Mar 21, 2016 11:39 am 
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Joined: Mon Mar 21, 2016 11:23 am
Posts: 1
Im trying to get ahold of a set of stock oem honda piston rings. I called chucklenuts at aftershot motorspurts motorsports and they told me that the 80mm wiseco rings they sell will not work on a stock honda piston. Now this is me asking for 1) if i have a stock bore and stock honda piston is the wiseco rings different cause of the ring cut that would be on a wiseco 80mm piston? Im assuming the the ring landings on a wiseco piston are cut a little deeper cause chucklenuts at aftershot motorspurts told me that i would have to modify the 80mm wiseco rings to get the correct clearances that a oem honda ring would be. And 2) if im on a stock bore is 80mm rings what i should be looking for? Reason for changing rings is just to freshen up cause i had a leak at the base gasket and figured while i was in there i should just get some new rings but it seems like this may be a little more complicated then i thought. I had some guy do a compression test on the cylinder and after about 4 seconds of cranking it read 140 psi. I know when i read the honda manual it said to crank it for 7-10 seconds on full throttle to see what compression was. Im thinking that i still may be good with the rings that are in it but im not so sure. If anyone can help me out with what direction i should go i would really appreciate it. Also bought a athena gasket set and im thinking of just changing out the base gasket and retrying to see what i get. What do you guys think?


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PostPosted: Mon Mar 21, 2016 4:02 pm 
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Joined: Tue Jan 17, 2012 3:19 am
Posts: 7698
Location: Hope, B.C Canada
89wheelchairpilot wrote:
Im trying to get ahold of a set of stock oem honda piston rings. I called chucklenuts at aftershot motorspurts motorsports and they told me that the 80mm wiseco rings they sell will not work on a stock honda piston. Now this is me asking for 1) if i have a stock bore and stock honda piston is the wiseco rings different cause of the ring cut that would be on a wiseco 80mm piston? Im assuming the the ring landings on a wiseco piston are cut a little deeper cause chucklenuts at aftershot motorspurts told me that i would have to modify the 80mm wiseco rings to get the correct clearances that a oem honda ring would be. And 2) if im on a stock bore is 80mm rings what i should be looking for? Reason for changing rings is just to freshen up cause i had a leak at the base gasket and figured while i was in there i should just get some new rings but it seems like this may be a little more complicated then i thought. I had some guy do a compression test on the cylinder and after about 4 seconds of cranking it read 140 psi. I know when i read the honda manual it said to crank it for 7-10 seconds on full throttle to see what compression was. Im thinking that i still may be good with the rings that are in it but im not so sure. If anyone can help me out with what direction i should go i would really appreciate it. Also bought a athena gasket set and im thinking of just changing out the base gasket and retrying to see what i get. What do you guys think?


Welcome new guy.
I don't think you are going to find any new, stock Honda rings around.
I had a used stock piston and rings but sent it to a member here (Jaylow) in exchange for a donation to Hoser and this site (not sure if he ever followed through with it). If you got 140lbs of compression your good. Caution: Do not run any paper cylinder base gasket. Here is why -- pic below is self explanatory right ?? You must run some sort of metal gasket like aluminum, brass, copper.


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PostPosted: Mon Mar 21, 2016 4:13 pm 
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Joined: Mon Oct 25, 2004 10:02 am
Posts: 2865
Location: East Peoria IL
As far as I know that's all that is available for the FL400 is a paper base gasket. I know Speed made some aluminum gaskets for the FL350.

I run paper gasket on the base, buy CO is right they can and do blow out. When mine blew out I noticed the idol was fast. Once I discovered what happen I drove back to camp with the choke on.

I replaced it with paper and I used Yamabond, I believe Hoser recommended it, and it has held well to this day.

Isn't it crazy you can buy Honda pistons but not the rings.


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PostPosted: Mon Mar 21, 2016 7:18 pm 
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Joined: Sat Jul 11, 2015 8:04 pm
Posts: 122
The piston and rings you sent me were so far out of spec it was crazy..i was trying to to appreciative of you sending them out and not saying anythi g negative but you are throwning me out there like i didnt honor an agreement. ..the piston also has nicks in it...still in the back of my truck in the can you sent it in..


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PostPosted: Mon Mar 21, 2016 7:54 pm 
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Joined: Tue Jan 17, 2012 3:19 am
Posts: 7698
Location: Hope, B.C Canada
jaylow wrote:
The piston and rings you sent me were so far out of spec it was crazy..i was trying to to appreciative of you sending them out and not saying anythi g negative but you are throwning me out there like i didnt honor an agreement. ..the piston also has nicks in it...still in the back of my truck in the can you sent it in..


Well then I guess I gota say sorry then.
I was under the impression you used it.
I did tell you it was on a used Engine that I got with a bunch of spares.
Now I know why you didn't send the donation.
Don't know why you didn't say anything sooner -- like right after I sent it to you.
When you say out of spec what does that mean ??
At the time we didn't even know the exact size of your bore even though I asked.
Anyways now I know. All sins forgiven.


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PostPosted: Mon Mar 21, 2016 8:00 pm 
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Joined: Tue Jan 17, 2012 3:19 am
Posts: 7698
Location: Hope, B.C Canada
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canadian oddy

Message subject: Re: Piston options..... are there any left?

Folder: Sent messages




so the piston fit ??




Sent: Thu Sep 03, 2015 8:27 pm


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jaylow

Message subject: Re: Piston options..... are there any left?

Folder: Inbox




Hey the motor (( Internal Combustion Engine ? )) (( Internal Combustion Engine ? )) is back together my new starter wiill be here tomorrow and ill have it back in Saturday. .ill let you know how it runs thanks for your help




Sent: Thu Sep 03, 2015 7:31 pm


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canadian oddy

Message subject: Re: Piston options..... are there any left?

Folder: Sent messages




Did that piston show up yet ??




Sent: Sun Aug 30, 2015 5:11 pm


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canadian oddy

Message subject: Re: Piston options..... are there any left?

Folder: Sent messages




Piston shipped today at about 1:30pm.
Hope it fits.




Sent: Mon Aug 24, 2015 3:24 pm


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canadian oddy

Message subject: Re: Piston options..... are there any left?

Folder: Sent messages




I will probably ship tomorrow. Will pm ya when I do.




Sent: Sun Aug 23, 2015 8:30 pm


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canadian oddy

Message subject: Re: Piston options..... are there any left?

Folder: Sent messages





jaylow wrote:

Whatever the stock oem straight from factory after recall. ..i assumed it was 78.5mm..


OK kid I will ship it next week.
I will PM you when I ship it.
If it won't fit ship it back please. Maybe someone else can use it if you can't.



Sent: Sat Aug 22, 2015 11:35 am


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canadian oddy

Message subject: Re: Piston options..... are there any left?

Folder: Sent messages




I hate to tell ya but the 78mm piston and rings I got won't work for you if you have the 78.5mm.
If you put it in you will probably snap a piston skirt and do real damage. When you snap the skirt it will punch a hole in the bottom of the crank case. I will send it to you anyways if you want. Let me know.




Sent: Fri Aug 21, 2015 2:15 pm


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canadian oddy

Message subject: Re: Piston options..... are there any left?

Folder: Sent messages




Hi Jay:
Hey I need a name and a postal code.
The dummies at Canada post might send it back to me without it.
You do have a 78mm piston right??




Sent: Fri Aug 21, 2015 1:42 pm


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canadian oddy

Message subject: Re: Piston options..... are there any left?

Folder: Sent messages




The question is: Is it a 78mm bore ??




Sent: Tue Aug 11, 2015 7:29 pm


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PostPosted: Mon Mar 21, 2016 8:02 pm 
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Joined: Tue Jan 17, 2012 3:19 am
Posts: 7698
Location: Hope, B.C Canada
Message subject: Re: Piston options..... are there any left?
From: jaylow
Sent: Thu Sep 03, 2015 7:31 pm
To: canadian oddy



Message




Hey the motor (( Internal Combustion Engine ? )) (( Internal Combustion Engine ? )) is back together my new starter wiill be here tomorrow and ill have it back in Saturday. .ill let you know how it runs thanks for your help


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