Coolant Pump: Removal
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WARNING: Before beginning any service procedure, refer to Safety Warnings in General Information. Failure to follow this instruction may result in serious personal injury.
Refer to: Engine Cooling System Health and Safety Precautions .
- Remove the engine front cover. Refer to: Engine Front Cover .
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NOTE: Rotate the crankshaft in a clockwise direction only.
Align the timing marks.
- Remove the bolts and the LH valve train oil tube.
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NOTE: The Camshaft Holding Tool will hold the camshafts in the TDC position.
Install the Camshaft Holding Tool onto the flats of the LH camshafts. Install Special Service Tool: 303-1248 Camshaft holding tools.
- Remove the bolts and the RH valve train oil tube.
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NOTE: The Camshaft Holding Tool will hold the camshafts in the TDC position.
Install the Camshaft Holding Tool onto the flats of the RH camshafts. Install Special Service Tool: 303-1248 Camshaft holding tools.
NOTE: The following 3 steps are for primary timing chains that the colored links are not visible. - Mark the timing chain link that aligns with the timing mark on the LH intake VCT assembly as shown.
- Mark the timing chain link that aligns with the timing mark on the RH intake VCT assembly as shown.
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NOTE: The crankshaft sprocket timing mark should be between the 2 colored links.
Mark the 2 timing chain links that align with the timing mark on the crankshaft sprocket as shown.
- Remove the bolts and the primary timing chain tensioner.
- Remove the primary timing chain tensioner arm.
- Remove the bolts and the lower LH primary timing chain guide.
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NOTE: A slight twisting motion will aid in the removal of the VCT oil control solenoid.
Remove the bolt and the LH intake VCT oil control solenoid.
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NOTE: A slight twisting motion will aid in the removal of the VCT oil control solenoid.
Remove the bolt and the LH intake VCT oil control solenoid.
- Remove the primary timing chain.
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NOTE: Do not use power tools to remove the bolt or damage to the LH primary timing chain guide may occur.
Remove the bolt and the upper LH primary timing chain guide.
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NOTE: The 2 VVT oil control solenoids are removed for clarity.NOTE: The Secondary Chain Hold Down is inserted through a hole in the top of the mega cap.
Compress the RH secondary timing chain tensioner and install the Secondary Chain Hold Down in the hole on the rear of the secondary timing chain tensioner guide and let it hold against the mega cap to retain the tensioner in the collapsed position. Install Special Service Tool: 303-1530 Tool, Chain Tensioner Hold Down.
- Remove and discard the RH VCT assembly bolts.
- Remove the RH VCT assemblies and secondary timing chain.
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NOTE: Do not use power tools to remove the bolt or damage to the RH primary timing chain guide may occur.
Remove the bolt and the RH primary timing chain guide.
- Place clean lint-free shop towels in the oil pan opening to prevent coolant from entering the oil pan during coolant pump removal.
- Remove the bolts, and the coolant pump.
- Discard the gaskets.