Fig. 69: VALVE COMPONENTS
Courtesy of CHRYSLER LLC
The aluminum cylinder heads (6) are designed to create high flow combustion chambers to improve
performance, while minimizing the change to the burn rate in the chamber. The cylinder head incorporates the
combustion chamber. Two valves (7,8) per-cylinder are used with inserted valve seats (5) and guides. A multi-
layer steel (MLS) type gasket is used between the cylinder head and engine block.
DIAGNOSIS AND TESTING
CYLINDER HEAD GASKET
A cylinder head gasket leak can be located between adjacent cylinders or between a cylinder and the adjacent
water jacket.
Possible indications of the cylinder head gasket leaking between adjacent cylinders are:
Loss of engine power
Engine misfiring
Poor fuel economy
Possible indications of the cylinder head gasket leaking between a cylinder and an adjacent water jacket are:
1 - VALVE LOCKS
5 - SPRING SEATS
2 - RETAINERS
6 - CYLINDER HEAD
3 - VALVE SPRINGS
7 - VALVE - EXHAUST
4 - VALVE STEM SEALS
8 - VALVE - INTAKE
2010 Jeep Wrangler Sport
2010 ENGINE 3.8L - Service Information - Wrangler
viernes, 1 de octubre de 2021 05:18:30 p. m.
Page 53
© 2011 Mitchell Repair Information Company, LLC.
