Please tell me this is normal

Delta0413

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Is this gap in my piston normal? I had no problems while working. My performance did not decrease. I'm crying help me
 
Normal but not optimal...

watch this...
Engine is a bit different but same issue.

 
Some people put an aluminum washer on either side to take up the slack.

I did that in one of mine. I found bearings that fit exactly the width of the wrist pin and made some washers with a few tenths of a mm clearance on each side. Seems to lower the vibration.

There was a thread here a few months back where I got the idea to do it. Can't remember who suggested it but I'd say it is a worth while improvement. Another suggestion was to chamfer the oil hole in the the connecting rod to improve flow to the bearing, next time I'll do that as well.
 
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