17H2972 VENT SCREW.  Bleed Screw for C.A.V. D.P.A. rotary fuel injection pump.

Use this vent screw to bleed the main pump body and also the top cover on Leyland and Marshall tractors with the following engines;

BMC 948cc 4 cylinder diesel
BMC 1500cc 4 cylinder diesel
BMC 1800cc 4 cylinder diesel
Perkins 3.152 3 cylinder diesel
Leyland 4/98 4 cylinder diesel
Leyland 6/98 6 cylinder diesel

Spanner size ⁵/₁₆” inch AF (8 mm).

Fitted to tractors:

• BMC Mini
• Nuffield 4/25
• Leyland 154, 184, 302
• Marshall 302
• Leyland 253, 245, 255, 270,  262, 272, 462, 472, 282, 482
• Leyland 502, 602, 604, 702, 704, 802, 804
• Leyland 285, 2100, 485, 4100
• Marshall 502, 602, 604, 702, 704, 802, 804
• Marshall 100, 115, 125, 145

See item 44 in the illustration of the top cover and item 38 in the illustration of the main body.

See also the “Easy bleed” thumb screw Kit.