Operation Manual

Table Of Contents
Job Card No.:
Engine:
Filing No.:
Valve Spring
Removal / Refitment
© 0785
0178-08-10 1073
01.05.05
S/BVM 628
When working on cylinder head in fitted con-
dition, the piston must be in TDC.
Job:
Removing the Springs
Push up sleeve (4) and spread with suitable
screwdriver. Place removing device on spring cap
and let both dogs engage in groove of valve stem.
Press sleeve down until removing device is safely
secured to valve stem.
Do not re-use valves with worn groove.
Discontinue use of worn dogs. Replace com-
ponent (3). Dogs must have a safe grip, or the
loaded valve springs may "shoot" the remo-
ving device out of place.
Turn nut (1) by wrench so as to compress the springs
and take out clamping cone (6). Fully unload springs
by releasing nut (1). Push up sleeve (4) to take down
the removing device.
With the cylinder head fitted, there is no need to
remove parts (3) and (4). The spring cap can be
slipped over.
Refitting the Springs
Refitment is made in the reverse order, using again
the valve removing device.
Job Card:
- 01.05.01
Tools:
- Valve removing device
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