Glow Plug - Correct Torque

86VW3

Applies To
ALL DIESEL ENGINES

Group


28
Subject

Glow Plugs


Part Identifier 2884
Key Points

Correct Glow plug torque


A289b
Number

86-09

November 24, 1986
The torque specification for all glow plugs is:
^ 30 N-m (22 ft.lb.)

This torque must NOT be exceeded because increasing the torque beyond the specification will cause closing of the ring gap, which can lead to premature failure of the glow plug..



1 - Ring gap OK (arrow) approximately 0.5 mm (0.02 in.)

2 - Ring gap closed (arrow) after being over-torqued