Doosan G20P-5, Service Manual, Page: 57 / 306

G424F(FE) Service Manual Chapter 3. Engine Mechanical System 55
Camshaft Timing Pulley and/or
Seal
Removal
Remove or disconnect
1.
Timing belt; see “Timing Belt – Removal”, in this
section.
2.
Camshaft case cover; see “Camshaft Case Cover
– Removal”, in this section.
3.
Camshaft timing pulley attaching bolt, holding the
camshaft with a 22-mm wrench and use a 17-mm
combination wrench to loosen the camshaft timing
pulley attaching bolt.
Important
• Mark the orientation of the camshaft timing
pulley before removal.
4.
Camshaft timing pulley.
5.
Camshaft seal; for this operation, drill a hole in
the seal front face and install a fine thread bolt.
With the aid of pliers, pull the seal.
Installation
Install or connect
1.
New seal in the camshaft case, with the aid of tool
KM-422, camshaft pulley washer and bolt.
2.
Camshaft timing pulley and its bolt, with a 22-mm
wrench, to lock the camshaft and a 17-mm socket
wrench and torque wrench; tighten.
Tighten
• Bolt: 40 – 50 N
·
m (30 – 37 lb
·
ft.).
3.
Camshaft case cover; see “Camshaft Case Cover
– Installation”, in this Section.
4.
Timing belt; see “Timing Belt – Installation”, in this
section.
Crankshaft Timing Pulley
Removal
Remove or disconnect
1.
V pulley belt; see “V Pulley Belt – Removal”, in
this section.
2.
Timing pulley attaching bolt, with a 13-mm socket.
3.
Timing pulley; if it is locked, use tool 6-8604028 to
remove the same.
4.
Timing pulley key.
Installation
Install or connect
1.
Key in the timing pulley.
2.
Timing pulley and attaching bolt, without
tightening.
3.
Use a 13-mm socket wrench; tighten.
Tighten
• Bolt: 135 + 30° + 15° (99 lb
·
ft. + 30° + 15°).
4.
V pulley belt; see “V Pulley Belt – Installation”, in
this section.