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Old 04-17-2009, 09:17 AM   #1
4DRmafia
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Default Nippon/ NPR piston rings for D16a6

I was wondering how precise are they? Close to oem? I test fit them on a scrap D16y7 piston to see how well it fits and it seem to be hard to get in the grooves. I don't know if D16y7 piston are different from D16a6.
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Old 04-17-2009, 12:44 PM   #2
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Default Re: Nippon/ NPR piston rings for D16a6

i dont know the quality of the rings. i did instal those on my car and it seems to be fine.
The d16y7 has the same bore so...
if i was to guess ,
they can be hard to get on the piston if you didnt clean the grooves out
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Old 04-17-2009, 01:46 PM   #3
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Default Re: Nippon/ NPR piston rings for D16a6

It's like the rings don't want to go in and I have to press them in hard.
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Old 04-17-2009, 06:32 PM   #4
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Default Re: Nippon/ NPR piston rings for D16a6

new rings are a lil hard to put on some times the do make tool to help out
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Old 04-17-2009, 08:49 PM   #5
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Default Re: Nippon/ NPR piston rings for D16a6

just be careful doing that, you can break a ring when you go to compress them for instalation
I actually did break one when i did mine.
have you double check your pat number?
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