22RE Piston to cylinder clearance
#1
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22RE Piston to cylinder clearance
I am about to rebuild my engine with my kit from Engbldr.com. I did not bore it out as the cylinders looked good. When I put the pistons in the cylinder with no rings on them I can rock them back and forth the same way the crank would. The book says max .035 mm clearance which is next to nothing. When I measure, I get a clearance of .10 mm, bore size is 92.5 and piston size is 92.35.
Anyone with any experiance let me know what you think. Will I have some slap. We are talking parts of a mm but when I hold the piston in the bore it seams like a lot.
Anyone with any experiance let me know what you think. Will I have some slap. We are talking parts of a mm but when I hold the piston in the bore it seams like a lot.
#3
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mine are loose as a goose on my 22RE. there was still a very visible crosshatch all the way around the cylinders(not egged out) when i tore it down, so i reused the pistons and just put in new rings. i could definitely rock the pistons back and forth a bit on all cylinders, but it runs fine and doesn't make any piston slap noises. remember, your pistons expand when they're hot. just my .02.
#6
In most of the 22Rs I've done HG jobs on, the pistons weren't sloppy at all. There was one I did that the pistons we're sloppy like that, I ended up tearing it apart and the cylinders we're worn at an angle, and the piston skirts we're cracked, and I imagine would have fell off if it were driven much longer.
Last edited by Chuki; 07-08-2006 at 12:02 PM.
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Well the pistons I pulled were good except for the rings were all broken. 430km will do that. The cylinders had ring grooves at the top that I have removed with hone.
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#8
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Piston Skirts
In most of the 22Rs I've done HG jobs on, the pistons weren't sloppy at all. There was one I did that the pistons we're sloppy like that, I ended up tearing it apart and the cylinders we're worn at an angle, and the piston skirts we're cracked, and I imagine would have fell off if it were driven much longer.
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