question on rings ? - Page 2

joe cool · 03-04-2019, 01:55 PM

I had been told about the back cutting the second ring. I am not sure how to do it ,I would hate to just take a grinder to it .I understand tweeking the oil ring expander, not sure when to stop though. Thanks

Billy Nees · 03-04-2019, 03:34 PM

You will need a fixture to back-cut the second ring.
You will need the "fish scale" to tweek the oil ring. ;-)

John Dinkel · 03-04-2019, 03:35 PM

Tri City Competition in California does it.

Nmbr1GMfan · 03-04-2019, 06:35 PM

Quote:

Originally Posted by joe cool

I had been told about the back cutting the second ring. I am not sure how to do it ,I would hate to just take a grinder to it .I understand tweeking the oil ring expander, not sure when to stop though. Thanks

I just bought a set from Gregg@Tri City, after looking at the back cut, you will destroy every ring you touch. Looks like a delicate process.

GTX JOHN · 03-04-2019, 10:12 PM

We have been lowering the Oil ring Tension for 50+ years and
it not difficult.

We run Gregg's Rings in all our Stock and Super Stock
racers.

I would not DREAM of doing the second ring myself!

Adger Smith · 03-06-2019, 12:01 AM

If you want pictures of a fixture and a little info, let me know. You need an accurate lathe.
BTW: I have made low drag Napier rings for applications they were not available for.

Makinchips · 03-06-2019, 10:55 AM

Adger, please send ring and fixture info to igrinditshrp@aol.com.

joe cool · 03-06-2019, 12:00 PM

Thanks but I do not have a lathe. And yes , I can screw up things pretty quiclly . Suppose just a standard rebuild is in order. Thanks for all the advice fellas.

kansas stocker · 03-07-2019, 11:03 AM

Quote:

Originally Posted by Adger Smith

If you want pictures of a fixture and a little info, let me know. You need an accurate lathe.
BTW: I have made low drag Napier rings for applications they were not available for.

I think I've thought up plans for one but would rather see something that would sure work. Would appreciate it if you would put me on the list. Sent you a pm.
Thanks.
Pete

Lee Jordan (3223) A/S · 03-07-2019, 12:28 PM

Quote:

Originally Posted by joe cool

I had been told about the back cutting the second ring. I am not sure how to do it ,I would hate to just take a grinder to it .I understand tweeking the oil ring expander, not sure when to stop though. Thanks

I used to do it all the time. Made a jig to set up in a lathe. Back cut it too much and it will crack though. I could take 15 lb/ft off of the shortblock rotating assembly doing this. Back in the 80's... Rings are much better now, but a better ring and a back cut??? sure why not.

03-04-2019, 01:55 PM	#11
joe cool Junior Member Join Date: Jul 2012 Location: southwest iowa Posts: 53 Likes: 3 Liked 5 Times in 3 Posts	Re: question on rings ? I had been told about the back cutting the second ring. I am not sure how to do it ,I would hate to just take a grinder to it .I understand tweeking the oil ring expander, not sure when to stop though. Thanks __________________ Joe Keightley Pacific Junction Iowa

03-04-2019, 03:34 PM	#12
Billy Nees VIP Member Join Date: Oct 2002 Location: On a hilltop in Pa. Posts: 4,496 Likes: 3,600 Liked 7,754 Times in 1,741 Posts	Re: question on rings ? You will need a fixture to back-cut the second ring. You will need the "fish scale" to tweek the oil ring. ;-) __________________ Billy Nees 1188 STK, SS I'm not spending 100K to win 2K

03-04-2019, 03:35 PM	#13
John Dinkel Senior Member Join Date: Nov 2005 Location: Pinckney, Michigan Posts: 507 Likes: 399 Liked 263 Times in 68 Posts	Re: question on rings ? Tri City Competition in California does it. __________________ John Dinkel 3295 STK

03-04-2019, 10:12 PM	#15
GTX JOHN VIP Member Join Date: Jun 2009 Location: Boulder City, Nevada 89005 Posts: 2,733 Likes: 2,802 Liked 2,486 Times in 697 Posts	Re: question on rings ? We have been lowering the Oil ring Tension for 50+ years and it not difficult. We run Gregg's Rings in all our Stock and Super Stock racers. I would not DREAM of doing the second ring myself! __________________ John Irving 741 Stock 741 Super Stock Last edited by GTX JOHN; 03-06-2019 at 02:36 PM.

03-06-2019, 12:01 AM	#16
Adger Smith VIP Member Join Date: Dec 2001 Location: Texarkana Ark/TX Posts: 2,446 Likes: 575 Liked 880 Times in 311 Posts	Re: question on rings ? If you want pictures of a fixture and a little info, let me know. You need an accurate lathe. BTW: I have made low drag Napier rings for applications they were not available for. __________________ Adger Smith (Former SS) Last edited by Adger Smith; 03-06-2019 at 12:07 AM. Reason: add

03-06-2019, 10:55 AM	#17
Makinchips Junior Member Join Date: Apr 2016 Posts: 26 Likes: 0 Liked 3 Times in 3 Posts	Re: question on rings ? Adger, please send ring and fixture info to igrinditshrp@aol.com.

03-06-2019, 12:00 PM	#18
joe cool Junior Member Join Date: Jul 2012 Location: southwest iowa Posts: 53 Likes: 3 Liked 5 Times in 3 Posts	Re: question on rings ? Thanks but I do not have a lathe. And yes , I can screw up things pretty quiclly . Suppose just a standard rebuild is in order. Thanks for all the advice fellas. __________________ Joe Keightley Pacific Junction Iowa