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engines:m104.98x [2020/10/13 06:41] – [Installation] john5788 | engines:m104.98x [2021/12/23 01:23] (current) – [Complete Engine Removal] john5788 | ||
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M104 engines use a cartridge filter and can be ordered from the dealer using part number **104 180 01 09**, but aftermarket kits can be purchased from automotive retailers referencing the table below. Kits should come with a new seal ring for replacement on the filter cap. | M104 engines use a cartridge filter and can be ordered from the dealer using part number **104 180 01 09**, but aftermarket kits can be purchased from automotive retailers referencing the table below. Kits should come with a new seal ring for replacement on the filter cap. | ||
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^ Brand ^ Part number ^ | ^ Brand ^ Part number ^ | ||
| WIX | 51145 | | | WIX | 51145 | | ||
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| Bosch | 72194WS | | | Bosch | 72194WS | | ||
| Mann | HU7271X | | | Mann | HU7271X | | ||
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==== Fluid ==== | ==== Fluid ==== | ||
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===== Compression Pressure Test ===== | ===== Compression Pressure Test ===== | ||
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- Drain coolant at radiator and engine block | - Drain coolant at radiator and engine block | ||
- Remove exhaust manifold | - Remove exhaust manifold | ||
- | - Remove intake manifold | + | - [[engines: |
- Remove upper timing cover | - Remove upper timing cover | ||
- Remove guide pin rail with extractor | - Remove guide pin rail with extractor | ||
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- Install chain tensioner | - Install chain tensioner | ||
- Check timing by rotating the engine through one entire combustion cycle. Check alignment of camshafts and crankshaft. | - Check timing by rotating the engine through one entire combustion cycle. Check alignment of camshafts and crankshaft. | ||
- | - Install intake manifold | + | - [[engines: |
- Install exhaust manifold | - Install exhaust manifold | ||
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- Remove poly v-belt | - Remove poly v-belt | ||
- Remove air compressor with hoses still attached | - Remove air compressor with hoses still attached | ||
- | - Remove | + | - Remove |
- Disconnect fuel pipes at fuel distributor | - Disconnect fuel pipes at fuel distributor | ||
- Disconnect accelerator cable and transmission bowden cable | - Disconnect accelerator cable and transmission bowden cable | ||
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- Install in reverse procedure | - Install in reverse procedure | ||
===== Fan clutch ===== | ===== Fan clutch ===== | ||
- | The M104.98x engines share the same fan clutch as the older M103 predecessor. The part number for the viscous fan clutch is 103 200 04 22 | + | The M104.98x engines share the same fan clutch as the older M103 predecessor. The part number for the viscous fan clutch is [[parts: |
==== Special Tool ==== | ==== Special Tool ==== | ||
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==== Removal ==== | ==== Removal ==== | ||
- | - Remove fan shroud | + | - [[engines: |
- | - Remove viscous fan clutch | + | - [[engines: |
- Loosen bolts on pulleys for water pump, power steering pump, and fan clutch | - Loosen bolts on pulleys for water pump, power steering pump, and fan clutch | ||
- | - Remove poly v-belt | + | - [[engines: |
- Remove pulleys on water pump, power steering pump, and fan clutch | - Remove pulleys on water pump, power steering pump, and fan clutch | ||
- Remove top bolt (6) of belt tensioner damper to front cover, 13mm hex | - Remove top bolt (6) of belt tensioner damper to front cover, 13mm hex | ||
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- Drain coolant from radiator and engine block | - Drain coolant from radiator and engine block | ||
- Remove radiator | - Remove radiator | ||
- | - Remove belt tensioner | + | - [[engines: |
- Remove 13mm hex bolt holding power steering pump to rear belt tensioner bracket and set power steering pump aside with hoses connected | - Remove 13mm hex bolt holding power steering pump to rear belt tensioner bracket and set power steering pump aside with hoses connected | ||
- When this bolt is loosened, the sleeve for the upper belt tensioner bracket bolt will fall off. | - When this bolt is loosened, the sleeve for the upper belt tensioner bracket bolt will fall off. | ||
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- Reinstall idle air control valve and dip stick if removed. | - Reinstall idle air control valve and dip stick if removed. | ||
- Reinstall the bracket that connects the power steering pump and belt tensioner | - Reinstall the bracket that connects the power steering pump and belt tensioner | ||
- | - Install belt tensioner | + | - Install belt tensioner[[engines: |
- Install radiator | - Install radiator | ||
- Fill coolant, bleed, and check for leaks | - Fill coolant, bleed, and check for leaks | ||
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- Secure the bottom two 13mm hex bolts first while continuing to press down on the timing cover | - Secure the bottom two 13mm hex bolts first while continuing to press down on the timing cover | ||
- Fasten the other timing cover bolts evenly and torque them to 25Nm | - Fasten the other timing cover bolts evenly and torque them to 25Nm | ||
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+ | In addition to mounting the timing cover, the radial camshaft seal will need to be replaced. A special tool is required to install this seal properly | ||
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+ | - Insert tool into the end of the camshaft | ||
+ | - Apply oil to the inside perimeter of the sealing hole and to the seal itself | ||
+ | - Slide the seal onto the tool and press in | ||
+ | - Remove the tool once the seal is no longer in contact with it | ||
+ | - Tap the seal in with a socket until seal is flush with surface | ||
+ | - If seal still leaks when flush with surface, then reinstall a new seal in a different position. A groove must have been worn at the previous location causing a leak. | ||
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