Weichai America Corp.
74
Figure 10-2 Spark plug special wrench
10.1.4 Installation
1.
Tighten spark plug with professional spark plug wrench, tightening torque (25-28) Nm;
2.
Assemble the ignition coil, push it down vertically in assembly, do not push and pull laterally;
3.
Fix the ignition coil with M6 hexagon socket head cap screw and tighten the torque (8-10)
Nm.
10.1.5 Maintenance points
1.
The normal spark plug head is gray or gray, if the spark plug head electrode damage or
melting failure, to be replaced with a new spark plug;
2.
Adjust the spark plug gap with a feeler gauge, the gap range is (0.45-0.5) mm, the gap
between each cylinder should be the same, if necessary, replace;
Note: If the spark plug gap is too large: first plug into the gap, gently wrench with a small
wrench corner of the side electrode; if the spark gap is too small: the first vise to slowly adjust
the gap, then plug into the feeler , Gently tap the corner of the side electrode with a small
wrench. Adjust the gap to ensure that the side electrode and the center electrode end parallel.
3.
Check the spark plug head thread is intact, if necessary, replaced;
4.
Check the ignition coil rubber cover is aging or damaged, if necessary, replaced.
Note: remove the rubber sleeve along the axial edge of the drawing, bending prohibited.
Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com
Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com
