HEADS UP!!!

Site upgrade in progress... Core site functions are working, but some non-critical features/functions will be temporarily unavailable while we work to restore them over the next couple of weeks.

Please post any bugs you encounter, but before you do, check to see if it's already listed.

Thanks for your patience while we work to improve the community.

Sign in to follow this  
Followers 0
BLSBRKR65

Done Honing. Do I Need New Rings?

10 posts in this topic

I just had my '94 XR650L Cylinder honed while i'm refurbishing the top end. The cylinder is now cross hatched and clean as a whistle. The current rings are well within spec. Do you need to install new piston rings everytime you get a hone? Thanks!

Share this post


Link to post
Share on other sites

When you say "in spec" do you mean the ring end gap? If that end gap is in spec there is no reason for new rings.

If the rings end gap was in spec there was no reason to hone the cylinder in the first place. The only reason to hone is because you are installing new rings. Now the rings have to seat again and it is not a 100% reliable process.

Share this post


Link to post
Share on other sites

The reason i had it honed was because there were rust stains and fine scratches in the cylinder. The ring end gap spec was right on prior to the honing. Is it a must to replace the rings after a honing job? Thanks!

Share this post


Link to post
Share on other sites

I would replace the rings. You are at that point anyway and it would be best to not risk the old rings not seating properly in the new hone. Also, it would be cheaper for new rings now rather than having to pull the top end apart again.:thumbsup:

Share this post


Link to post
Share on other sites
I just had my '94 XR650L Cylinder honed while i'm refurbishing the top end. The cylinder is now cross hatched and clean as a whistle. The current rings are well within spec. Do you need to install new piston rings everytime you get a hone? Thanks!

Yes you do. It would be just like putting new rings in with out breaking the glaze/honing the cyl. Your old rings have "taken a set" to the wear/break-in pattern your cyl. had before honing.

Share this post


Link to post
Share on other sites

absolutely replace the rings if you've honed it to a nice finish. dont try to re-break in the old rings. you will probably burn oil.

Share this post


Link to post
Share on other sites

Speaking as a professional mechanic technically anytime you remove the cylinder you should replace the rings. That being said I have run the same old rings in the old bore as long as I didn't hone it as long as their wasn't a previous smoking or blow by problem and I have had pretty good luck doing so. Since your's has been honed there is no question put new rings in it.:thumbsup:

Share this post


Link to post
Share on other sites

Old rings won't seal well. you must put new rings in if you honed it. Clean the piston surface well while its out as well. General rule is -once top end apart, new rings are essential. If I were hard on the bike (a lot of high rpm use) I'd put a new piston, wrist pin and clips in as well..way better safe than sorry.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0