59 G12 2 piece oil control rings ?

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Fearn80
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Location: Norfolk England

59 G12 2 piece oil control rings ?

Post by Fearn80 »

Hi to All

Just putting my engine back together. After crank regrind.

Im leaving the top end alone for now

The BHB wire wound pistons have a 2 piece oil control ring.

Question is should the two pieces be offset / clocked or should the gap line up?

Obviously I've clocked the the 2 compression rings but I'm not sure how these 2 piece oil control rings should go. I haven't seen this type before.
IMG_20230303_143058439_HDR.jpg
Cheers
Andy F
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ajscomboman
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Re: 59 G12 2 piece oil control rings ?

Post by ajscomboman »

On your oil ring the top piece is correct but the bottom piece needs to be fitted the same way as the top. Yes it looks odd but the Hepolite guide shows both flat faces of the split oil ring are fitted upper most and the castellations facing down. So whip it off and turn it 180 degrees and you'll be good to go.
g80csp11
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Re: 59 G12 2 piece oil control rings ?

Post by g80csp11 »

i was just about to say the same , well done Rob
Fearn80
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Re: 59 G12 2 piece oil control rings ?

Post by Fearn80 »

Cheers.

I didn't pay attention when i removed them.

Thanks
Andy F
Fearn80
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Re: 59 G12 2 piece oil control rings ?

Post by Fearn80 »

And here's a pic from when i took them apart..... Should have checked my photos cheers anyhoos ๐Ÿ‘

If you zoom in you can see.

Do you have a link to the info on these oil rings? Is it in the tech articles?

Cheers
Andy F
IMG_20221230_195947965_HDR.jpg
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