Valve guides must be clean before installing exhaust valves.
Set cylinder head (Figure 1, Item 5) on its side.
Lubricating oil may cause irritation to eyes or skin. In case lubricating oil comes in contact
with eyes or skin, immediately flush eyes with water, wash skin with soap and water. Wear
protective goggles, gloves, and clothing. Failure to comply may result in personnel injury
Lubricate valve (Figure 1, Item 6) with lubricating oil.
When using original exhaust valves, install them in same location from which removed.
Install exhaust valve (Figure 1, Item 6) into cylinder head (Figure 1, Item 5) and temporarily secure
Handling heavily weighted objects can cause bodily injury. Do not lift materials or
equipment over 50 lb (23 kg) without using appropriate material handling equipment.
Ensure proper lifting techniques are followed when removing or installing heavy
components. Use assistant(s) and/or suitable lifting device when lifting heavy parts of
components. Failure to comply may result in personnel injury, death, and/or damage
Set cylinder head (Figure 1, Item 5) with exhaust valve (Figure 1, Item 1) on top of wooden blocks.
Install valve spring seat (Figure 1, Item 4), spring (Figure 1, Item 3), and retaining cap (Figure 1, Item 2).
Compress valve spring only enough to permit installation of spring cap.
Using valve spring compressor, compress spring (Figure 1, Item 3).
Install two locking wedges (Figure 1, Item 1).
Release pressure on spring (Figure 1, Item 3) and remove spring compressor.
Using spring checking gauge, check exhaust valve start of opening. Note gauge reading the moment
exhaust valve begins to open. Minimum allowable pressure must not be less than 20 lb (9.08 kg). Replace
springs not meeting this requirement.