Preparing The Timing Chain Tensioner For Installation - Husqvarna FE 250 2016 Repair Manual

18 ENGINE
18.4.33
200

Preparing the timing chain tensioner for installation

200172-10
Press the timing chain tensioner together completely.
Info
This requires some force, as the oil must be pressed
out.
Release the timing chain tensioner.
✓ Without pressure, the timing chain tensioner expands
fully.
Place two compensating disks or similar aids next to the tim­
ing chain tensioner piston. This ensures that, when pressed
in, the piston cannot go in all the way.
Guideline
Thickness of the compen­
sating disks
Release the timing chain tensioner.
✓ The detent mechanism engages and the piston remains
in place.
Final position of the pis­
ton after engagement
Info
This position is necessary for installation.
If the timing chain tensioner is now pressed again and
is only extended a maximum of half way (it is pre­
vented from extending completely). This locks the
detent mechanism and the timing chain tensioner can
no longer be squeezed together. This function is nec­
essary in order to ensure sufficient timing chain ten­
sion even at low oil pressures.
2 ... 2.5 mm (0.08 ...
0.098 in)
3 mm (0.12 in)
..