availability of std rings

RDDave · January 01, 2025, 09:30:39 AM

I stopped by our local speed shop to ask if they can bore my cylinders. He can't bore cylinder bores that small, but can rigid hone them to size since it is only 2 and not that much oversize.

But he brought up a good point that I didn't know and would have liked to explore had I known. There are ring makers that can make just about any ring. In fact there are several ring makers that can do it. I don't have any idea what the cost would be, I just thought I would pass this along as an FYI.

1976RD400C · January 01, 2025, 10:48:50 AM

Just some advice from an old timer. Take your cylinders to someone that can measure them and see what condition they are in and proceed from there.

m in sc · January 01, 2025, 01:14:04 PM

I agree. my local guy is 80 bucks a hole and does a fantastic job boring cyls, bern doing mi e for over 20 yrs.

RDDave · January 01, 2025, 07:59:09 PM

Good advice.

The speed shop is a full-on race shop. They rebuild big dollar stuff of all stripes for the nostalgia racers. Mostly muscle cars. They maintain and deliver on call over a dozen race cars to races. They are leaving next week for Florida with several cars for the first race of the season. My cylinders are really small potatoes and do not have to be as precision as most of their customers. The ONLY reason he will mess with them is because we are personal friends and I do him some favors with my tractor. My cylinders are in good hands. That I am sure of.

RDDave · January 02, 2025, 02:52:03 PM

Now that was FAST!

I ordered my parts from Yambits over the weekend and they arrived this (Thursday) morning. 4 days from the UK to Illinois. Heck, I order stuff from either coast here in the U.S. and it takes that long or longer.

I really appreciate the heads-up on Yambits. I was not familiar with them at all.

m in sc · January 02, 2025, 10:59:39 PM

4 stroke and 2 stoke boring is different. make sure he chamfers the ports correctly if he has little or no 2 stroke experience.

RDDave · January 03, 2025, 10:05:12 AM

That will probably fall to me. It's been a long time, but I have done it before.

RDnuTZ · January 03, 2025, 10:50:53 AM

Quote from: m in sc on January 02, 2025, 10:59:39 PM4 stroke and 2 stoke boring is different. make sure he chamfers the ports correctly if he has little or no 2 stroke experience.

Do you personally use porting tool of some type- or by hand?

m in sc · January 03, 2025, 03:10:59 PM

I use a tootsie roll sanding drum, small for porting. long arbor, on a die grinder . more a setup for porting automotive heads but works well for this. the arbor is about 6" long

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availability of std rings