Hi all,

Pre-unit T120

I'm fitting new Hepolite +40 pistons/rings to my rebored barrel.

Got them from eBay, they don't give an origin of manufacture on the box, so I guess they're made outside the UK.

My question concerns the 2 compression rings on each piston.

One has a dot to indicate the upper face, this one has an INTERNAL chamfer on the upper inside edge that sits in the groove.

The other has no markings and can be fitted either way.

They were supplied all wrapped together, so I need to know, does the ring with internal chamfer go in the top or second groove?

Many thanks,
Dave