Disassembly & Inspection
- Remove gear cover. Note and mark direction of installed gear for reassembly reference, using felt pen.
- Measure clearance between outer gear and cover. Measure clearance between inner gear tip and outer gear.
- Place straightedge across front cover housing. Measure gear end play clearance between each gear and straightedge.
- Inspect the pressure relief valve for freedom of movement in bore. Measure the spring tension and the free length of relief valve spring. Replace components if not within specifications. See OIL PUMP SPECIFICATIONS (1.5L) table or OIL PUMP SPECIFICATIONS (1.8L) table.
Inspect oil pan for cracks or damage. Inspect oil screen for clogging.
OIL PUMP SPECIFICATIONS (1.5L)
| Application |
In. (mm) |
| Gear End Play |
.0016-.0039 (.040-.100) |
| Inner Gear-To-Outer Gear Tip |
.0024-.0071 (.060-.180) |
| Outer Gear-To-Case |
.0039-.0071 (.100-.180) |
| Relief Valve Spring |
| Free Length |
1.835 (46.60) |
| Spring Pressure |
13 @ 1.579 (6 @ 40.10) |
OIL PUMP SPECIFICATIONS (1.8L)
| Application |
In. (mm) |
| Gear End Play |
| Drive Gear |
.0031-.0055 (.080-.140) |
| Driven Gear |
.0024-.0047 (.060-.120) |
| Gear Side Clearance |
.0015-.0039" (.04-.10 mm) |
| Gear Tip Clearance |
.0024-.0071" (.06-.18 mm) |
| Gear Tip-To-Body Clearance |
| Drive Gear |
.0063-.0083 (.160-.210) |
| Driven Gear |
.0051-.0071 (.130-.180) |
| Gear-To-Front Cover Clearance |
| Standard |
.0039-.0071" (.10-.18 mm) |
| Limit |
.0138" (.351 mm) |
| Relief Valve Spring |
| Free Length |
1.835 (46.60) |
| Spring Pressure |
13.4 @ 1.579 (6.1 @ 40.10) |