Stump Shot review's The Duke's new 2100CD piston

[Stump Shot]

@Stump Shot Hey Pumpkin, do you have another of Chris 2100 to bring over to Kevs with you? Id like to take a looky.

I tink so.

 

[Stump Shot]

@Stump Shot Hey Pumpkin, do you have another of Chris 2100 to bring over to Kevs with you? Id like to take a looky.

Then again for the cost, you just might want to buy one and forgo the wait...

 

[Redfin]

I dont need one. Just curious.

 

[SOHC]

I just got one of these pistons for mt 2100cd, I have a NOS cylinder òn the way but it seems to be held up somewhere in shipping.

What should the piston to bore clearance be? And also the ring end gap?

 

[huskihl]

I just got one of these pistons for mt 2100cd, I have a NOS cylinder òn the way but it seems to be held up somewhere in shipping.

What should the piston to bore clearance be? And also the ring end gap?

Piston to cyl clearance .002 - .004” with feeler gauges

End gap .010”+

 

[SOHC]

You dont have a measurement for the piston to bore clearance?

 

[huskihl]

You dont have a measurement for the piston to bore clearance?

Nothing that is any more accurate than feeler gauges.

 

[Stump Shot]

You dont have a measurement for the piston to bore clearance?

One simple way to tell if the fit is good is the drop test. Where you hold the cylinder upside down with your finger over the spark plug hole, then take the piston and place in the top of the bore in its correct orientation and let it go. It should float down slowly until reaching the top and stopping. If it stops part way and sticks or drops like a stone, it has issue.