Honda/Acura Tech Honda tech discussion.

pistion rings

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Old Aug 7, 2008 | 08:39 AM
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Default pistion rings

just put piston rings in and now its like a fog machine and drinking oil does anyone no whats up
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Old Aug 7, 2008 | 08:50 AM
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theyre not sealing, thats whats up.

did you get the right rings? did you hone the cylinder walls? did you install them in the right order? and they're not upside down?
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Old Aug 7, 2008 | 09:13 AM
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yeah sounds like you either messed up the install or got the wrong rings. Did you hone the cylinders?
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Old Aug 7, 2008 | 10:17 AM
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Originally Posted by KJ
yeah sounds like you either messed up the install or got the wrong rings. Did you hone the cylinders?
x2 if the rings are to small and the gap isnt right you will get massive blow by. take them back out and make sure you installed the oil ring correctly and rails.
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Old Aug 7, 2008 | 06:15 PM
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Originally Posted by gsxr0407
x2 if the rings are to small and the gap isnt right you will get massive blow by. take them back out and make sure you installed the oil ring correctly and rails.

yup. somthings definatly wrong...take it all apart and inspect everything closely. did you check the ring gap in the block before you installed them on the pistons?
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Old Aug 9, 2008 | 04:21 AM
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Sounds like oil ring isn't doing the job in at least one cylinder.

My recipe:

1. measure bores with a quality bore gage (size, runout top to bottom and for ovaling
2. Bore and hone if out of service limit
3. Hone if within service limit (if your machine shop doesn't know Hondas, warn them to take just a couple-three strokes on the hone with NEW stones before measuring. I watched a NASCAR engine builder who thought he knew better take too much out of a Honda block. He was stunned how fast the metal vanished. New stones are a must, otherwise you get uneven bores top to bottom)
4. Install rings correctly (right sides up and gaps clocked according to ring instructions or your favorite way of clocking rings.
5. Don't dip pistons/rings in motor oil when reassembling and don't get any assembly lube on them. Squirt heck out of them with WD-40. Light oil cuts friction but lets the rings seal. You'll get motor oil soon enough from the crankcase.

Can't tell you how many kids I've talked to who re-ringed their motor by taking it apart, seeing smooth bores and just putting in new rings, pistons or both and throwing it back together. No measuring, no bore or hone.

Do it right, guys. It pays off in the end and makes Honda enthusiasts look like they know what they are doing (and care). I know money can be a problem at times, but let it smoke for a couple more months while you scrape together the bucks to do it right.

Unless you've got a date with Jessica Alba, there isn't anything better you can do with that money.
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Old Aug 9, 2008 | 04:56 AM
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what did you do this one,you sure also of the headgasket?just asking to make sure the head was Tq down right also..i would not keep driving this untill you fix it
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Old Aug 9, 2008 | 10:46 AM
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Good point. He said fog - assumed oil fog, but maybe not.
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