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Lister CS Compression Change Over Valve (COV)
This is a brand new aftermarket compression change over valve with cast iron grip and all the copper seals needed for a complete replacement of your Lister CS or Listeroid COV. Suitable for 5/1, 6/1, 10/2 & 12/2 Lister CS engines. Equivalent to Lister P/N 573-10160.
This Change Over Valve assembly will also fit 3/1 & 3.5/1 with the exception of the main plug (bottom seat) show in image 4 as item 148, the 3/1 & 3.5/1 uses part number 208-361 a slightly longer and larger diameter plug. All other parts in this set are compatible with the 3/1 & 3.5/1 engines. The original 3/1 Lister COV P/N 574-10860.
The Compression Ratio Change-Over Valve is also referred to as part number 5-1/D5C & 208/18C in earlier manuals.
Parts included in this set (Refer to photo number 4)
- Item 139: Valve Spindle P/N 10-3-5-1
- Item 140: Valve Spindle Key P/N 27-107
- Item 141: Valve Spring Washer P/N 27-1063
- Item 142: Valve Handwheel P/N 573-10210
- Item 143: Valve Spring P/N 10-3-11
- Item 144: Valve Lock Nut P/N 27-235
- Item 145: Valve Instruction Plate P/N 27-3990
- Item 146: Valve Instruction Plate Rivets P/N 27-707
- Item 147: Valve Nut P/N 10-3-4-1
- Item 148: Main Plug (6/1) P/N 8-3-90
- Item 149: Main Plug Joint P/N 10-3-91
- Item 150: Auxiliary Plug P/N 10-3-3
- Item 151: Auxiliary Plug Joint P/N 10-3-6
