Engine Specs - S54 Rod Bolts: Difference between revisions
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The S54 has two different types of connecting rod bolts. The torque procedure for each is different. | The S54 has two different types of connecting rod bolts. The torque procedure for each is different. | ||
* Type-1: M11 x 1.25 mm thread pitch. 12 mm bi-hexagonal bolt head. | |||
* Type-2: M10 x 1.25 mm thread pitch. E12 Torx bolt head. | |||
=== OEM Rod Bolts === | === OEM Rod Bolts (M11 x 1.25, 12mm bi-hex bolt head) === | ||
==== SPEC: OEM: Torque procedure ==== | ==== SPEC: OEM: Torque procedure ==== | ||
| Line 13: | Line 15: | ||
!Angle | !Angle | ||
|- | |- | ||
| | |30 Nm | ||
| | |70 degrees | ||
|- | |- | ||
|Remove | |Remove bearing cap | ||
| | | | ||
|- | |- | ||
| | |30 Nm | ||
| | |70 degrees | ||
|} | |||
<br> | |||
Make sure you are starting with new rod bolts. Factory rod bolts must be replaced once used. | |||
# Lubricate rod bolt threads and connecting rod cap bore holes with appropriate thread lubricant. | |||
# Torque to 30-Nm, then using a torque-angle gauge tighten another 70-degrees. | |||
# Remove bolts. | |||
# Repeat steps 1, 2. | |||
<p></p> | |||
=== OEM Rod Bolts (M10 x 1.25, E12 Torx bolt head) === | |||
==== SPEC: OEM: Torque procedure ==== | |||
{| class = "diyTable bearingSpec" | |||
!Torque | |||
!Angle | |||
|- | |||
|30 Nm | |||
|105 degrees | |||
|- | |||
|Release bolts | |||
| | |||
|- | |- | ||
| | |30 Nm | ||
|105 degrees | |||
|- | |||
|Release bolts | |||
| | | | ||
|- | |- | ||
| | |30 Nm | ||
| | |105 degrees | ||
|} | |} | ||
<br> | <br> | ||
Make sure you are starting with new rod bolts. Factory rod bolts must be replaced once used. | Make sure you are starting with new rod bolts. Factory rod bolts must be replaced once used. | ||
# Lubricate rod bolt threads and connecting rod cap bore holes with appropriate thread lubricant. | # Lubricate rod bolt threads and connecting rod cap bore holes with appropriate thread lubricant. | ||
# Torque to | # Torque to 30-Nm, then using a torque-angle gauge tighten another 105-degrees. | ||
# | # Release bolts. | ||
# Repeat steps 1-3 | # Repeat steps 1-3 | ||
# Repeat steps 1, 2. | # Repeat steps 1, 2. | ||
<p></p> | <p></p> | ||
Latest revision as of 21:52, 2 December 2016
Rod Bolt Comparisons
The S54 has two different types of connecting rod bolts. The torque procedure for each is different.
- Type-1: M11 x 1.25 mm thread pitch. 12 mm bi-hexagonal bolt head.
- Type-2: M10 x 1.25 mm thread pitch. E12 Torx bolt head.
OEM Rod Bolts (M11 x 1.25, 12mm bi-hex bolt head)
SPEC: OEM: Torque procedure
| Torque | Angle |
|---|---|
| 30 Nm | 70 degrees |
| Remove bearing cap | |
| 30 Nm | 70 degrees |
Make sure you are starting with new rod bolts. Factory rod bolts must be replaced once used.
- Lubricate rod bolt threads and connecting rod cap bore holes with appropriate thread lubricant.
- Torque to 30-Nm, then using a torque-angle gauge tighten another 70-degrees.
- Remove bolts.
- Repeat steps 1, 2.
OEM Rod Bolts (M10 x 1.25, E12 Torx bolt head)
SPEC: OEM: Torque procedure
| Torque | Angle |
|---|---|
| 30 Nm | 105 degrees |
| Release bolts | |
| 30 Nm | 105 degrees |
| Release bolts | |
| 30 Nm | 105 degrees |
Make sure you are starting with new rod bolts. Factory rod bolts must be replaced once used.
- Lubricate rod bolt threads and connecting rod cap bore holes with appropriate thread lubricant.
- Torque to 30-Nm, then using a torque-angle gauge tighten another 105-degrees.
- Release bolts.
- Repeat steps 1-3
- Repeat steps 1, 2.