Isuzu 4JA1 Workshop Manual page 114

6A – 92 ENGINE MECHANICAL
Oil Seal Installation
Use the special tool to install the front oil seal.
Front Oil Seal Installer: 5-8840-2361-0
1. With the oil seal attached to the sleeve, insert it into the
front end section of the crankshaft.
2. With the oil seal end section attached securely to the
crankshaft, tighten up the center bolt until the sleeve hits
the front end reference plane of the crankshaft securely.
3. Remove the sleeve.
4. With the seal pressed in, check the dimension of the oil
020R300005
seal section.
Standard Dimension = 1.0 ± 0.03mm (0.04 ± 0.0012 in)
NOTE:
Install the oil seal after assembling the timing pulley
housing. The oil seal lip section is applied with oil.
Take notice of the press-in direction of the oil seal.