28Q700); Installing Valve Springs & Retainers (050000, 235400, 245400) - Briggs & Stratton Vanguard 05000 Manual

Two piece valve stem seals were used on early
production intake valves (28Q700), Fig. 19.
Current production engines use a one piece
valve stem seal, Fig. 20.
7
5. Oil the inside diameter of the valve stem
seal with engine oil.
• Install on the valve stem.
6. Slide seal down against head plate or
cylinder head.
NOTE:
Current production valve stem seals on
28Q700 are a press fit on the valve guide boss.
To install, place intake valve in valve guide. Slide
new seal down over valve stem against valve
guide boss. Using a
socket press or tap seal down until it bottoms.
154
Fig. 19
Fig. 20
six point deep
(10 mm)
Be sure Valve Guide Lubricant
valve face, valve seat, or exposed end of valve
stem.
• Gasket seal or washer is used on intake
valve only, (085400, 115400, 117400,
118400, 185400, 235400, 245400,

28Q700).

Installing Valve Springs & Retainers
(050000, 235400, 245400)
1. Install the oil splash guide in the rocker
box (if equipped) as shown in Fig. 21.
Fig. 21
NOTE
: The exhaust valve is marked with a
raised "EX" on its face.
2. Insert the valves into their guides and set
the head on a folded shop cloth to support
and prevent the valves from falling out of
the cylinder head.
3. With the valve face resting on the shop
cloth, position the return spring over the
valve.
4. Push the valve retainer over the valve
stem as shown in Fig. 22.
Fig. 22
is not on
#93963