01:01-02
©
Scania CV AB 1997 17
Program 96
Assembly
1. Thoroughly lubricate all parts before assembly.
2. Insert the valve stem in the guide. (Fit the
valve stem seal, if any.)
3. Fit the lower guide washer, the two valve
springs and the upper guide washer.
4. Compress springs using tools 99 195 and
99 196 and fit collets.
5. Fit valve stem caps.
Fitting
1. Clean the cylinder head bolt holes in the
block using an M16 tap.
Check the liner height, see Pistons and cylin-
der liners.
2. Fit a new gasket.
3. Fit the cylinder head and ensure that the
guide pins fit in the holes.
4. Change bolts having three centre-punch
marks on the head for new ones.
5. Lubricate the threads on the cylinder head
bolts and the surface under the head.
6. Tighten the bolts in the order given in the fig-
ure and in three stages + 90 degrees as follows:
• Tighten all bolts to 60 Nm
• Tighten all bolts to 150 Nm
• Tighten all bolts to 250 Nm
• Finally tighten all bolts 90 degrees
7. Mark all bolts with a fresh centre-punch
mark.
(Except new bolts.)
To Next Page
Loading...
Need help?
General
