Grand Caravan L4-153 2.5L SOHC VIN K TBI (1988)
Valve: Specifications
Stem Diameter
Intake
0.3124 in
Note: Minimum
Exhaust 0.3103 in
Note: Minimum
Installed Height
1.960-2.009 in
Note: Measured between tip of valve & spring seat
Maximum Tip Refinish
0.020 in
Note: If valve tip is refinished, measure tip diameter &
re-chamfer valve tip, as needed, to a diameter of 0.275
inch (minimum) to prevent seal damage during installation.
If more than 0.020 inch must be ground from valve tip,
check clearance between rocker arm & valve spring
retainer. If clearance is less than 0.050 inch, machine
"ears" of rocker arm, as needed to provide specified
clearance. However, it machining rocker arm will reduce
depth less than 0.060 inch, valve and/or cylinder head
must be replaced.
Face Angle
45 deg
Margin
Intake
0.031 in
Note: Minimum
Exhaust 0.047 in