ORIGINAL FACTORY PARTS
Part Number 14-1001 14-1002 14-1003
Piston Ring for HB .40 and .50

Dykes Piston Ring was used on most HB 40's and all HB 50's

 

The 40 PDP and Std 40 use the same 14-1001 ring
and a wrist pin with Teflon pads

 

The 40 Blitz uses 14-1002 a standard pinned ring
The Blitz had a black head and the wrist pin was retained with clips


All HB 50's use a dykes ring #14-1003
There were never a .50 PDP and the wrist pin always had Teflon pads

 


To remove piston simply remove the head and front housing. The piston can be pushed up thru the cylinder. You may have to clean any varnish from the top of the cylinder though.

Items usually purchased with this

29-1001 Front/Rear Cover Gasket


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