Pulled out my forged pistons to inspection after 4yrs of boost. They look fine,and I will be re installing them. Question .... Do I have to go through that long period of no boost and granny driving for the rings to seat?

 

used rings? bad idea...

 

New hone and new rings could save you some additional labor in the future and you won't be waiting for something to go wrong.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by purpleh22 &raquo;</TD></TR><TR><TD CLASS="quote">New hone and new rings could save you some additional labor in the future and you won't be waiting for something to go wrong.</TD></TR></TABLE>

X2

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by md23vtec &raquo;</TD></TR><TR><TD CLASS="quote">

X2</TD></TR></TABLE>

 

i definitly second and third that, definitly get new piston rings, hone the block, and break in period is DEFINITLY needed for piston rings to seat!

 

no


Guys, nothing was wrong with my pistons or rings..i just pulled them for an inspection and they are fine . Why no I have to change the rings? Is this what everyone else does? Once you remove pistons you must change the rings? I thought it would be more like just allowing the rings to seat in their new position.

 

well here's the deal... The reason why you hone a block and put new rings in, yadda yadda, is so that when you start it up and the rings "seat" what they're going is basically matching up with the "rough" surface of the honed cylinder wall and creating a seal... metal is not incredibly malleable, so that's why the cylinder gets honed and the rings are slightly larger than the bore when not squeezed, basically the rings have tension that makes the push into the cylinder walls, again, the job is to make it seal.

given mileage on the rings, etc. etc. they wear into the walls, basically making their place inside that cylinder. If one could remove the piston and rings, and then place everything back in ABSOLUTELY EXACTLY the same positioning, you could, in theory, be okay, and I'm sure people have done it before... But you're never going to get anyone to advise you to pull your pistons out and then reuse the rings. it's not only a big chance of causing problems/blowby,etc. but spend the $150 it costs for a hone and a set of rings to be certain that everything's straight... Personally after 4 years, I mean, other than something strange happening requiring removal of the pistons, I would've left them in, but I'm just gonna say that if I were in the same position, hone+new rings no questions asked. especially if you continue to have fun/race/whatever with it.

Now... far as your break-in period goes, read the F.I. forum FAQ there's a link to a break-in article that is very eye-opening.

I hope all that made sense. Good luck.

-Harry

 

Lots of hot air in this thread.

You can def reuse the rings. Nothing has been changed or damaged. No need to get **** and start throwing away good parts.

 

Definitely change the rings, but if you still have a nice crosshatch visible I don't see any reason to get it honed.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Muckman &raquo;</TD></TR><TR><TD CLASS="quote">Lots of hot air in this thread.</TD></TR></TABLE>

It wasn't here until you showed up. over 6000 posts and you have no clue about laws engine builders have followed forever? The only thing revolutionary about this post is your asshatery and general neglect for things like preventative maintenance especially when it comes to having access to the core of the engine. New rings will NEVER be a bad idea when the block is disassembled, I don't care WHO you think you are.

Then again, you obviously don't care. you give the guy 2 lines of info, one line not even on topic. for us all being in the company of stellar individuals such as yourself, Muckman! A true spokesperson for Honda engine builders across the globe!

Jetlude: reuse the rings so when you come back here in a week with a thread with a topic like: "why does my car smoke?" or "my compression test is low and I don't know why" send your block to the guy who told you those piston rings should be reused.

-aut0

 

No need to get your panties in a ruffle. Ive done exactly the same thing as this person is asking about. Ive pulled pistons out of a motor to inspect and put them right back in. Compression tests and performance are the same as before. I speak from the real world. You seem to quote alot of e-knowledge.

 

This is getting ****. Both of you guys are right. I would put money on him reinstalling everything as it was, and not having a problem.(if reinstalled correctly) Or to be SAFE, new rings, and hone.

 

replace the rings, hone the block and be safe..

or re-use the rings and don't hone the block, have some blow by and replace the rings with new ones soon

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Muckman &raquo;</TD></TR><TR><TD CLASS="quote">You seem to quote alot of e-knowledge.</TD></TR></TABLE>

Yes, because we all know, all of my engine building experience is from this "e-knowledge" that you speak of. *sigh* as the one previously, your post is incredibly informative and to-the-point, isn't it? So you've ran an engine for 4 years on boost, pulled the pistons and put them back in and everything was well? hmm... well you were either incredibly lucky and just SLIGHTLY stupid, or just stupid. There's no reason to not spend the money to make sure you don't have problems later. Bottom line. This is all common engine building practice. Stop trying to deny it. You're the only person here who thinks otherwise... Maybe there's a point to that. for coming in here and the first words out of your mouth were attacks on people quoting practices that have been used for centuries. you AREN'T HELPING. Go away.

 

Replacewith new rings and rehone.

I'm sure people will tell you they reused them before but any professional engine builder will say the same thing that I already have.

/thread

 

You could just go ahead and reuse the same oil also - hey - it was good when you tore it down. Say - use the old gaskets, they looked good - didn't they?
Seriously, theres a fair chance you could get by. If you do all your own work and don't mind the down time and inconvenience of redoing it in the event that it doesn't quite work out - - - go ahead and re use the rings - they might work!
OR
Change them and don't worry about it.

 

new rings

why wouldnt you?

 

wow, the overall personality of honda-tech has got a lot nicer. I was expecting a flame-a-thon, thats refreshing.

But yes, rings will only run you like $80 bucks, and the old ones are likely never to seal again.