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Installing piston rings

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Old 26-04-2006, 12:18 PM
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Avinitlarge
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Default Installing piston rings

I am embaresed to ask this cos I done it so many times, Problem is the last time I did it was 5 years ago and ive forgot.

Is it every 90 degrees for the gap?? I really cant remember
Old 26-04-2006, 01:44 PM
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Alvyn
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I dont know about it having to be 90 degree just as long as the gaps are NOT all in one line down the piston
Old 26-04-2006, 01:49 PM
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EssexBoyRacer
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How exactly do you fit a piston ring? Something I've never done before!
Old 26-04-2006, 01:56 PM
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SafeChav
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You have to gently ease the rings over the pistons, bending too far can distort/snap them.

And with regards to the gaps its usually done by the manufacturers spec, which will be different through out them. General rule of thumb is to keep the gaps are far apart as possible, or at 1/3 intervals.
Old 27-04-2006, 11:36 AM
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Avinitlarge
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Its every 120 degrees
Old 27-04-2006, 12:08 PM
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Originally Posted by Avinitlarge
Its every 120 degrees
Just bear in mind some manufacturers specify different though
Old 27-04-2006, 05:25 PM
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davidnormanuk
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The haynes manual says 90 degrees and the CVH tuning book I got says 120 degrees. I went for the 120 degress one as the gaps are as far apart as they can be at that.
Old 27-04-2006, 05:27 PM
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Thats exactly what im talking about

I believe some cars have the rings 180 degrees out. 120 is the normal
Old 28-04-2006, 12:13 PM
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Avinitlarge
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120 degrees it what it says in the haynes bag 'o' shit manual, Sound and looks right to me
Old 28-04-2006, 12:51 PM
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PMSL
Old 28-04-2006, 07:38 PM
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Damo V
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dont forget the oil control rings and gauze need to be placed a seperate intervals also
Old 28-04-2006, 09:41 PM
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Well thats what I thought, When I took the pistons out the gap for the top and bottom oil ring was in the same place and the gause was about 45 degrees from them, It was like this on all 4 pistons too
Old 28-04-2006, 09:43 PM
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Rings do rotate in the bores while the engine is running
Old 28-04-2006, 09:46 PM
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Originally Posted by safechav
Rings do rotate in the bores while the engine is running
I know but whats the chance of both the oil rings on all 4 pistons being in exactly the same place??
Old 28-04-2006, 10:05 PM
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Quite good apparently
Old 28-04-2006, 11:02 PM
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Originally Posted by safechav
Quite good apparently
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