Piston rings

General Chat with an emphasis on BMC Minis & Other iconic cars of the 1960's.
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360gts
1275 Cooper S
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Piston rings

Post by 360gts »

Anyone have a source for a set of Std. rings for the early S pistons. AEG341.
4 ring set....Part Number R19520-STD
.047: compression rings
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TECH396
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Re: Piston rings

Post by TECH396 »

Standard cast Hastings are available at Amazon. I have a set here if you want measurements. Edit Just measured comp rings to be .0615
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360gts
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Re: Piston rings

Post by 360gts »

TECH396 wrote: Fri Aug 23, 2024 6:50 pm Standard cast Hastings are available at Amazon. I have a set here if you want measurements. Edit Just measured comp rings to be .0615
Comp rings for these pistons is .047"...oil 160"
This is why I am having difficulty finding them.....most suppliers have discontinued them.
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TECH396
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Re: Piston rings

Post by TECH396 »

I've just called Hastings and now waiting for a reply. I'll keep you posted if I hear back before someone here knows the answer. Cheers
Paul H.
360gts
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Re: Piston rings

Post by 360gts »

Tried all of those guys...even Deeves...
HOWEVER< my lucky day...a NOS a set just popped up on E Bay and I snapped them up.....
Half the price they were at Mini Mania when they had them.
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TECH396
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Re: Piston rings

Post by TECH396 »

360gts wrote: Fri Aug 23, 2024 7:27 pm Tried all of those guys...even Deeves...
HOWEVER< my lucky day...a NOS a set just popped up on E Bay and I snapped them up.....
Half the price they were at Mini Mania when they had them.

Nice.
Paul H.
NicholasUpton
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Re: Piston rings

Post by NicholasUpton »

Spares Had NPR rings that are suitable. C-STN102-20
360gts
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Re: Piston rings

Post by 360gts »

NicholasUpton wrote: Sun Aug 25, 2024 9:28 pm Spares Had NPR rings that are suitable.

None in Std. size.....and they are 3 rings
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iain1967s
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Re: Piston rings

Post by iain1967s »

NicholasUpton wrote: Sun Aug 25, 2024 9:28 pm Spares Had NPR rings that are suitable.
360gts wrote: Sun Aug 25, 2024 11:27 pm None in Std. size.....and they are 3 rings
You can use a size over and file the ends to gap correctly. I did that to make +30 rings fit my +20 pistons.
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Re: Piston rings

Post by 360gts »

iain1967s wrote: Fri Aug 30, 2024 4:34 pm
NicholasUpton wrote: Sun Aug 25, 2024 9:28 pm Spares Had NPR rings that are suitable.
360gts wrote: Sun Aug 25, 2024 11:27 pm None in Std. size.....and they are 3 rings
You can use a size over and file the ends to gap correctly. I did that to make +30 rings fit my +20 pistons.
Yep, done that many times.....bit time consuming....but works in a pinch.
In this case...I did find a NOS set of std.
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