Reassembly - Isuzu 1999 RODEO Workshop Manual

6A–44 ENGINE MECHANICAL (X22SE 2.2L)
Valve Seat Insert Replacement
1. Arc weld the rod at several points. Be careful not to
damage the aluminum section.
2. Allow the rod to cool for a few minutes. This will cause
the valve seat to shrink.
3. Strike the rod and pull it out.
4. Carefully clean the valve seat press–fit section on the
cylinder head side.
5. Heat the press–fit section with steam or some other
means to cause expansion. Cool the valve seat with
dry ice or some other means.
6. Insert the press–fit section into the valve seat
horizontally.
7. Lap the valve and the seat.

Reassembly

1. Install oil controller (3) and spring lower seat (2).
Using oil controller replacer J–42622, drive in a new
oil controller.
2. Install valve to valve guide. Before install valve guide
apply engine oil to the outside of the valve stem.
014RS015
3. Install valve spring to cylinder head. Attach the valve
spring to the lower spring seat.
4. Install lower valve spring seat, valve spring and upper
valve spring seat then put split collars on the upper
spring seat, using J–8062 valve spring compressor
for install the split collars.
5. Install tappet.
6. Install camshaft assembly.
f Refer to installation procedure for Camshaft in this
manual.
014RS019
011RW014