Ring thickness differences

big-b · Post by **big-b** » Mon Apr 04, 2011 6:59 pm

I have a set of .50 over CA77 pistons. I bought new rings part number 13030-266-000 and the two top rings are to thick. The top rings measure about 1.77mm thick, the old rings measure about 1.42mm thick. I'm not sure how to find the correct rings. The bottom ring fits fine.

Brian

LOUD MOUSE · Post by **LOUD MOUSE** » Mon Apr 04, 2011 7:04 pm

They are the early issue and ya need the later issue.
May have 275 as the middle numbers. ............lm

big-b wrote:I have a set of .50 over CA77 pistons. I bought new rings part number 13030-266-000 and the two top rings are to thick. The top rings measure about 1.77mm thick, the old rings measure about 1.42mm thick. I'm not sure how to find the correct rings. The bottom ring fits fine.

Brian

hillhudson · Post by **hillhudson** » Thu Mar 22, 2012 12:23 am

lm,
the .75 over rings i got to throw on the .75 pistons i bought from you are the same story as this, the top two rings don't fit, their too thick, my question is, can i lap the rings on wet sandpaper on a plate of glass till they are the correct measurement ?

or should i just find the correct rings for the pistons ?

thanks!

-hill

LOUD MOUSE · Post by **LOUD MOUSE** » Thu Mar 22, 2012 2:28 am

I recommend ya get the correct rings. ............lm

hillhudson wrote:lm,
the .75 over rings i got to throw on the .75 pistons i bought from you are the same story as this, the top two rings don't fit, their too thick, my question is, can i lap the rings on wet sandpaper on a plate of glass till they are the correct measurement ?

or should i just find the correct rings for the pistons ?

thanks!

-hill

hillhudson · Post by **hillhudson** » Thu Mar 22, 2012 2:52 am

Thanks a lot lm,

Theirs a guy on eBay with the correct rings, says he has more than a few boxes. I'll grab a set from him.

Thanks again

-hill

LOUD MOUSE · Post by **LOUD MOUSE** » Thu Mar 22, 2012 7:48 am

If they are the 275 issue good deal. ..................lm

hillhudson wrote:Thanks a lot lm,

Theirs a guy on eBay with the correct rings, says he has more than a few boxes. I'll grab a set from him.

Thanks again

-hill

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Ring thickness differences

Ring thickness differences

Re: Ring thickness differences