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CVO Technical => Twin Cam => Topic started by: JLR on October 04, 2021, 01:35:59 PM

Title: 110 rings
Post by: JLR on October 04, 2021, 01:35:59 PM

I have a set of 110 cylinders and pistons from a '12 cvo and was checking the ring end gap. .017" top ring and .028" second ring.  I was looking in my '07 service manual and Harley calls for .016" min on top ring and .014" min on second ring.  Was there a change in specs over the years??  What would you folks suggest for end gaps?    I intend on doing a top end on my '07 Ultra.

Also, are the Hastings 2m5299 rings an acceptable replacement for the way over priced Mahle rings?

Thanks

Title: Re: 110 rings
Post by: JLR on October 08, 2021, 11:00:24 AM

so, no one has used the Hasting rings or set the end gaps? 

Title: Re: 110 rings
Post by: HD Street Performance on October 08, 2021, 12:44:43 PM

I would contact total seal

Title: Re: 110 rings
Post by: JLR on October 08, 2021, 02:05:29 PM

Have you had better luck with them? 

Title: Re: 110 rings
Post by: HD Street Performance on October 08, 2021, 03:10:51 PM

No there is room for more than one alternative. I like dealing with total seal, the company

Title: Re: 110 rings
Post by: JLR on October 08, 2021, 06:49:38 PM

Thanks.

Title: Re: 110 rings
Post by: prodrag1320 on October 09, 2021, 07:30:32 AM

i like to use total seal rings also,that said theres nothing wrong with hastings rings for most street builds.where these new rings or used once tore down that you got .017 & .028?

Title: Re: 110 rings
Post by: JLR on October 10, 2021, 09:12:22 AM

Quote from: prodrag1320 on October 09, 2021, 07:30:32 AM

i like to use total seal rings also,that said theres nothing wrong with hastings rings for most street builds.where these new rings or used once tore down that you got .017 & .028?

The .017" and .028" were checked on a set of cylinders that had 4000 miles on them.

Title: Re: 110 rings
Post by: HD Street Performance on October 10, 2021, 09:17:48 AM

Problem is when you put the cylinders in plates and measure you will likely have bore distortion.  New rings does not fix that. Nor does ball honing. So a bore oversize is appropriate and you get everything properly fit. Otherwise just clean everything up and run it.

Title: Re: 110 rings
Post by: JLR on October 10, 2021, 11:39:10 PM

Just to be clear, the rings were the used ones out of those cylinders.  I was curious what the gap was and checked the used rings in the used bores. Top ring nice, second seems way off, but maybe specs changed since '07?

I assume you are using Total Seal gapless rings. Is that right?

Title: Re: 110 rings
Post by: longlast on October 11, 2021, 06:24:23 AM

Quote from: JLR on October 10, 2021, 11:39:10 PM

Just to be clear, the rings were the used ones out of those cylinders.  I was curious what the gap was and checked the used rings in the used bores. Top ring nice, second seems way off, but maybe specs changed since '07?

I assume you are using Total Seal gapless rings. Is that right?

When I did my 07 I was going to use Hastings rings  but went with Total seal. Also found that the 07 piston (at least in mine ) the ring width is 1.2 in the first and second Grove and 2.5 in the oil.
 

Title: Re: 110 rings
Post by: HD Street Performance on October 11, 2021, 06:50:41 AM

I don't use gapless rings

Title: Re: 110 rings
Post by: longlast on October 11, 2021, 07:23:27 AM

Gapless are optional with Total Seal and you can only use a gapless in the top only or second Groove only not both

Title: Re: 110 rings
Post by: JLR on October 19, 2021, 03:53:57 PM

Look what the big brown truck brought me today