Engine oil pump, removed - check at bench
- Make
- Lancia
- Model
- Ypsilon Factory Service Manual
- Year
- 2003–2011
- Section
- Engine lubrication system › Engine oil pump, removed - check at bench
Engine oil pump, removed - check at bench
Dismantling
1. Undo the bolts (1a) and remove the intake duct (1b).
2. Remove the gasket.
3. Undo the bolts (3a) and remove the oil pump cover (3b).
Use a percussion screwdriver to undo the above-mentioned bolts.
4. Remove the driven gear.
5. Remove the drive gear.
6. Undo the catch (6a) and remove the oil pressure relief valve (6b).
Dismantling
1. Undo the bolts (1a) and remove the intake duct (1b).
2. Remove the gasket.
3. Undo the bolts (3a) and remove the oil pump cover (3b).
Use a percussion screwdriver to undo the above-mentioned bolts.
4. Remove the driven gear.
5. Remove the drive gear.
6. Undo the catch (6a) and remove the oil pressure relief valve (6b).
Dismantling
1. Undo the bolts (1a) and remove the intake duct (1b).
2. Remove the gasket.
3. Undo the bolts (3a) and remove the oil pump cover (3b).
Use a percussion screwdriver to undo the above-mentioned bolts.
4. Remove the driven gear.
5. Remove the drive gear.
6. Undo the catch (6a) and remove the oil pressure relief valve (6b).
Dismantling
1. Undo the cap (1a) and remove the oil pressure relief valve (1b).
2. Undo the bolts (2a) and remove the engine oil inlet duct (2b) complete with gasket (2c).
1. Remove crankshaft front oil seal with a suitable tool in the special groove
1. Remove crankshaft front oil seal with a suitable tool in the special groove
1. Remove crankshaft front oil seal with a suitable tool in the special groove
1. Undo the bolts (1a) and remove the oil pump cover (1b).
2. Remove the drive gear.
3. Remove the driven gear.
Reassembling
1. Check that the radial clearance between driven gear and pump casing is within the recommended limits
| Measurement | Value | ||
|---|---|---|---|
| 1 | Radial clearance between driven gear and pump casing (mm) | 0.080 - 0.186 |
Reassembling
1. Check that the radial clearance between driven gear and pump casing is within the recommended limits
| Measurement | Value | ||
|---|---|---|---|
| 1 | Radial clearance between driven gear and pump casing (mm) | 0.100 - 0.210 |
Reassembling
1. Check that the radial clearance between driven gear and pump casing is within the recommended limits
| Measurement | Value | ||
|---|---|---|---|
| 1 | Radial clearance between driven gear and pump casing (mm) | 0.100 - 0.210 |
1. Remove the crankshaft front oil seal.
1. Check that the axial clearance between the upper side of the gears and the oil pump cover support plane is within the recommended limits.
| Measurement | Value | ||
|---|---|---|---|
| 1 | End float between upper side of gears and cover support surface (mm) | 0.025 - 0.056 |
1. Check that the axial clearance between the upper side of the gears and the oil pump cover support plane is within the recommended limits.
| Measurement | Value | ||
|---|---|---|---|
| 1 | End float between upper side of gears and cover support surface (mm) | 0.025 - 0.070 |
1. Check that the axial clearance between the upper side of the gears and the oil pump cover support plane is within the recommended limits.
| Measurement | Value | ||
|---|---|---|---|
| 1 | End float between upper side of gears and cover support surface (mm) | 0.025 - 0.070 |
Reassembling
Check that the radial clearance between pump casing and driven gear is within the recommended limits; If not, replace the oil pump assembly
| Measurement | Value | ||
|---|---|---|---|
| Radial clearance between pump casing and driven gear (mm) | 0.1 ÷ 0.23 |
Check that the height of the spring for the engine oil pressure relief valve is within the recommended limits.
| Measurement | Value | ||
|---|---|---|---|
| Oil pressure relief valve spring height (mm) | 34.1 | ||
| Under test load (daN) | 4.45 - 4.94 | ||
Fit the limiting valve and fix it using the catch.
Fit the drive gear.
Fit the driven gear.
Fit the oil pump cover.
Manually rotate the gears to check that they turn without sticking.
Fit the intake duct complete with gasket and fix it to the oil pump using the bolts.
Note: the crankshaft front oil seal must be fitted to the engine oil pump on the crankcase (see op. 1084B14 engine oil pump - r+r with power unit removed ).
Check that the height of the spring for the engine oil pressure relief valve is within the recommended limits.
| Measurement | Value | ||
|---|---|---|---|
| Check load (daN) | 11.73 - 12.51 | ||
| Height (mm) | 35 | ||
Fit the oil pressure relief valve and tighten the plug.
Fit the drive gear.
Fit the driven gear.
Fit the oil pump cover and tighten the bolts.
| Fastening | Component | Ø | Value (daNm) | |
|---|---|---|---|---|
| Bolt | COVER | M6 | 0.7 |
Manually rotate the gears to check that they turn without sticking.
Fit the intake duct complete with gasket and fix it to the oil pump using the bolts.
Note: the crankshaft front oil seal must be fitted to the engine oil pump on the crankcase (see op. 1084B14 engine oil pump - r+r with power unit removed ).
Check that the height of the spring for the engine oil pressure relief valve is within the recommended limits.
| Measurement | Value | ||
|---|---|---|---|
| Oil pressure relief valve spring height (mm) | 35 | ||
| Check load (daN) | 11.73 - 12.51 | ||
Fit the oil pressure relief valve and tighten the plug.
Fit the drive gear.
Fit the driven gear.
Fit the oil pump cover and tighten the bolts.
| Fastening | Component | Ø | Value (daNm) | |
|---|---|---|---|---|
| Bolt | COVER | M6 | 0.7 |
Manually rotate the gears to check that they turn without sticking.
Fit the intake duct complete with gasket and fix it to the oil pump using the bolts.
The crankshaft front oil seal must be fitted to the oil pump on the crankcase ( - 1084B14 engine oil pump - r+r with power unit removed ).
Check that the clearance between the oil pump cover support plane and the upper side of the gears is within the recommended limits; If not, replace the oil pump assembly
| Measurement | Value | ||
|---|---|---|---|
| Clearance between pump cover support surface and top of gears (mm) | 0.05 ÷ 0.075 |
Check that the height of the spring for the engine oil pressure relief valve is within the recommended limits; if this is not the case, replace the spring.
| Measurement | Value | ||
|---|---|---|---|
| Engine oil pressure limiting valve spring height (mm) | 36.0 | ||
| Check load (daN) | 5.44 ÷ 6.2 | ||
1. Refit the front crankshaft front cover oil seal (1a) using the tool (1b).
| Name | Country | |
|---|---|---|
| 1b | Fitting tool | 1.860.878.000 |
Refit the driven gear.
Refit the drive gear.
Place the engine oil pump cover back in its housing and secure using the bolts.
Manually rotate the gears to check that they turn without sticking.
Place the intake duct complete with gasket in its housing and fix it using the bolts.
Fit the oil pressure relief valve in its seat and tighten the cap.
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