Saturday, July 7, 2018

Red: Pistons & Rings

Continuing carpet work from yesterday, wanted to take a look at the pistons I had.

More revelations...

So Piston #1 is Honda and is measuring in at 50.2 mm.  The top and second rings were good.  The oil ring didn't pass the gap test, which I now realize is because I stole it from a piston of a different size.  Which is all now moot since I snapped it!

Piston #2 is an ART piston measuring at 49.94 mm.  

And the Honda piston at 50.2 fits perfectly in the Orange jug.

The ART piston fits perfectly into the Mystery jug.  

Go figure.

I believe the S90 standard size was 50 mm (based on some Yahoo posts), which means both the Honda piston and the Orange jug are 1 oversize (+0.25).

The ART piston and the Mystery jug must be standard.







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