Engine Service Manual

86
Reassembly
KohlerEngines.com 32 690 03 Rev. I
Install Valve Covers
Valve Cover RTV Sealant
A
A RTV Sealant
Valve Cover Torque Sequence
1&5 3
2
4
NOTE: Always use fresh sealant. Using outdated
sealant can result in leakage. Refer to Tools and
Aids for information on sealant dispenser.
NOTE: To ensure proper adhesion of sealant to both
sealing surfaces, perform step 3 immediately (5
minutes maximum) after application of RTV.
RTV silicone sealant is used as a gasket between valve
cover and cylinder head. Refer to Tools and Aids for a
listing of approved sealants.
1. Prepare sealing surfaces of cylinder heads and
valve covers. Flatness of sealing surface must be
checked prior to reinstallation. See Disassembly.
2. Apply a 1.5 mm (1/16 in.) bead of sealant to valve
cover as shown.
3. Position covers on cylinder heads. If a pulse style
fuel pump is used valve cover with pulse fi tting hole
must be installed on side 2. Install screws in each
cover and fi nger tighten.
4. Torque valve cover fasteners to 9.6 N·m (85 in. lb.),
using sequence shown.
Install Spark Plugs
1. Check gap using wire feeler gauge. Adjust gap to
0.76 mm (0.030 in.).
2. Install plug into cylinder head.
3. Torque plug to 27 N·m (20 ft. lb.).