FE350 ENGINE
Cylinder Head
2001 Pioneer 1200 Gasoline Vehicle Maintenance and Service Manual Page 13-13
13
VALVE GUIDES
Valve Guide Inspection
1. Measure the inside diameter of each guide with a telescoping gauge (Figure 13-19, Page 13-13).
2. If the inside diameter exceeds 0.2781 inch (7.065 mm), replace the guide.
Valve Guide Replacement
1. With the combustion chamber side of the head facing up, drive the guide out of the head with a valve
guide arbor (1) (CCI 101641202) (Figure 13-20, Page 13-14).
2. Install the snap ring (2) on the new valve guide (Figure 13-21, Page 13-14).
3. Coat the guide with a light film of clean engine oil.
4. With the rocker arm side of the head facing up, drive the new valve guide into the head with the valve
guide arbor (3) until the snap ring (2) just seats on the head (Figure 13-21, Page 13-14).
5. Ream the guide with a stanisol or kerosene lubricant and a valve guide reamer (CCI 101641201). The
VALVE SEATS
Valve Seat Inspection
1. Inspect the valve seats for damage. If the seats are warped or distorted beyond reconditioning, replace
the cylinder head.
2. Using Prussian Blue, coat the valve seat.
3. Push the valve into the guide.
4. Rotate the valve against the seat with a lapping tool (1) (Figure 13-23, Page 13-14).
Figure 13-18 Combustion Chamber
Figure 13-19 Measure I.D. of Valve Guides
1
A
A
B
A
2
1
Measure each position
in 2 places 90
°
apart.
