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Discussion Starter · #1 ·
Hi all I'm trying to find the correct position for my piston ring gaps ready for when I drop the pistons back in, these are oe pistons with oe rings.
I have searched the workshop manuals but can't seem to find the info.
Can anyone help please
 

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Discussion Starter · #4 ·
It doesn't really give positions on the pistons on this though, I was sure I knew how they went but know I just don't know, my biggest problem, self doubt!, I know your not supposed to sit a gap above the wrist pin and the gaps fall around 90degs from each other, I think? But I'm not sure ��
 

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60 degrees between each gap and keep going around or as per CliveW's post.
When I was building engines I was using 60degs rule and they showed relatively high comp values and held it. This way you do not have gaps aligning anywhere. With oil ring the top rail is reference point for compression rings
 

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Rings rotate on the piston when it runs.

So once you've started it up , they've moved.


So it's not a critical assembly procedure.




The time to worry is when they stop rotating.
That's after you've broken a ring land, you end up with a groove in the bore.




If you don't believe me.....try mr google.


Just like the valves rotate, valve springs rotate, valve keepers rotate.
 

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Discussion Starter · #9 ·
Thanks for the help chaps.

I used this diagram and spaced like so, using D as the circle stamped on the piston deck.
As said they will rotate I know this, I think they will be fine as they are.

 
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