Does honing change the piston bore size
hey guys
I have a 90 Honda accord.on my way back home my camshaft broke, which also messed up my head block. now i m buying a new block from junk yard and getting it resurfaced. But the main thing is that my car use to burn a lot of oil when it was running, so now i m thing of putting new piston rings while i have opened the engine. But i have heard that before putting new piston rings the piston bore should be honed. Is it possible that i can hone the bore by my self, and does it changes the size of the bore. because i was thinking of use the same pistons but with new rings on it.
I have a 90 Honda accord.on my way back home my camshaft broke, which also messed up my head block. now i m buying a new block from junk yard and getting it resurfaced. But the main thing is that my car use to burn a lot of oil when it was running, so now i m thing of putting new piston rings while i have opened the engine. But i have heard that before putting new piston rings the piston bore should be honed. Is it possible that i can hone the bore by my self, and does it changes the size of the bore. because i was thinking of use the same pistons but with new rings on it.
You should Google search "plateau hone" to learn a little more.
http://www.babcox.com/editorial/ar/eb40250.htm
The idea is that the scuffing creates peaks and valleys in the cylinder wall.
the peaks get worn flat by the piston rings while the valleys retain oil for lubrication.
In your engine you will see the factory hone marks when you open it up.
the probable cause of your engine burning oil was collapsed oil wiper rings.
There is actually a tool, like a old record player needle that is used to check the R.A. [roughness average] and it sends a graphing signal to a recorder.
When Soichiro Honda designed the first Honda engines he made the cylinder walls slightly harder than the piston rings.
This is the reason that pre98 engines can almost always be rebuilt with good success.
But in 98 due to CAFE ratings implemented by the FED, Honda Engineers came up with the "composite" cylinder wall, that wears out. Making those engines too costly to rebuild. Pressing in cylinder liners isn't cheap
I'm sure Soichiro Honda rolled over in his grave when that happened.
http://www.babcox.com/editorial/ar/eb40250.htm
The idea is that the scuffing creates peaks and valleys in the cylinder wall.
the peaks get worn flat by the piston rings while the valleys retain oil for lubrication.
In your engine you will see the factory hone marks when you open it up.
the probable cause of your engine burning oil was collapsed oil wiper rings.
There is actually a tool, like a old record player needle that is used to check the R.A. [roughness average] and it sends a graphing signal to a recorder.
When Soichiro Honda designed the first Honda engines he made the cylinder walls slightly harder than the piston rings.
This is the reason that pre98 engines can almost always be rebuilt with good success.
But in 98 due to CAFE ratings implemented by the FED, Honda Engineers came up with the "composite" cylinder wall, that wears out. Making those engines too costly to rebuild. Pressing in cylinder liners isn't cheap
I'm sure Soichiro Honda rolled over in his grave when that happened.
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BLKCRX
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Jul 24, 2002 03:40 AM




