Help locating Honda Dream Rings

yellow60 · Post by **yellow60** » Mon Jan 10, 2011 10:34 pm

I am trying to find part number 13010-275-000. These are suppose to be the rings I need for my honda dream 305 pistons. I have have put a caliper on my old rings and they measure 1.43mm on the two thin rings and 2.78mm on the one thick ring. I believe I have the correct part number. Can anyone confirm and if this is correct can you help with finding these.

Thanks Adam

G-Man · Post by **G-Man** » Tue Jan 11, 2011 2:33 am

Hi

You also need to measure the bore diameter to work out which oversize yo need. Each oversize has it's own ring size to match. If you gently clean off the top of the piston there will be a number indicating the oversize.

G

yellow60 · Post by **yellow60** » Tue Jan 11, 2011 8:06 am

Thanks G-man I measured the bore it is 60mm which I believe is to be stock but I just can't seem to find the rings I need for the piston.

LOUD MOUSE · Post by **LOUD MOUSE** » Tue Jan 11, 2011 8:46 am

The other member recommended ya clean the top of the piston to look for the actual piston size.
With that info we will be able to help a little better. ............lm

yellow60 wrote:Thanks G-man I measured the bore it is 60mm which I believe is to be stock but I just can't seem to find the rings I need for the piston.

GeorgeP1111 · Post by **GeorgeP1111** » Tue Jan 11, 2011 8:47 am

I got my standard rings from http://www.olypen.com/retro/ for $58 a few weeks ago. They measure 1.46mm Top, 1.49mm Mid, 2.79mm Oil. For reference, the rings I pulled out measure 1.42mm Top, 1.48mm Mid, 2.80mm Oil.

Look for them under the same part number you listed.

Have Fun

George

G-Man · Post by **G-Man** » Tue Jan 11, 2011 9:04 am

http://cgi.ebay.com/ebaymotors/HONDA-NO ... _515wt_941

GeorgeP1111 · Post by **GeorgeP1111** » Tue Jan 11, 2011 11:08 am

LOUD MOUSE wrote:The other member recommended ya clean the top of the piston to look for the actual piston size. With that info we will be able to help a little better. ............lm]

Hmmm... I'm not the original poster, but I am looking at the top of my piston now and I see the arrow, but nothing to indicate the piston size. On one of the sides near the pin it says "C77" and on the other side it says "ART", but again, nothing to indicate the size. I measured the piston diameter at 59.95mm so I'm assuming that they are the STD pistons. Also, as for the original rings that were on the pistons, they had a "R" stamped in the top corner, the new ones have "STD", and measuring the ring gaps on the new rings when installed at various heights in the cylinders is within specs so I assume I bought the correct size?

George