How to Replace the Timing Chain and Water Pump on a 3.5 Liter V6 Engine
In this video, we’ll cover how to replace the timing chain and water pump on a disassembled 3.5 liter v6 engine from a 2010 Ford Fusion. The engine was disassembled due to a coolant loss issue, where the coolant was leaking into the crankcase due to a leaking water pump driven off the timing chain.
The primary goal is to replace the water pump and timing chain. While the timing chain replacement isn’t typically due to stretch or wear issues, it’s a necessary step when replacing the water pump.
The entire powertrain, brake suspension, and related components were removed from the vehicle to facilitate the job, making the process easier than attempting the repair in the vehicle.
There are no direct timing marks on this engine. Special tools are required to align the camshafts and crankshaft. Once the engine is properly aligned, the VVT actuator housings are removed, allowing access to the timing chain. The timing chain and guides are inspected and replaced if necessary.
Upon removing the water pump, a major issue was revealed: the pump was severely damaged, likely impacting the engine’s performance. The replacement water pump was cleaned thoroughly before installation.
After this, the new water pump was installed with specific torque requirements and sequences, followed by the installation of the timing chain and guides. Upon completing the installation, the engine was cranked to build oil pressure before starting.
The author emphasized the importance of thorough cleaning and oil replacement after such repairs.
The video provides valuable insights into the process of replacing the timing chain and water pump on a 3.5 liter V6 engine. The attention to detail and thoroughness in the repair process is commendable. For more automotive content, the viewers are encouraged to subscribe and follow the author’s work.
Overall, the video displays a comprehensive guide to a complex engine repair, showcasing the expertise and meticulous approach required for such tasks.
What was the complaint on the car?
The complaint on this car was a coolant loss issue. The coolant was leaking into the crankcase due to the water pump, which was driven off the timing chain, leaking internally.
Why was the timing chain being replaced?
The timing chain was being replaced due to the leaking water pump. It was mentioned that the primary chain was being replaced, and the secondary chains for the camshafts were not being replaced, as it was not a concern.
What was the process of replacing the timing chain and water pump?
The process involved removing the VVT actuator housings, aligning the colored links on the chain with specific marks on the camshafts and crankshaft, removing the tensioner, and replacing the guides, tensioner, and water pump. The installation of new parts and the torque specifications for the bolts were also explained.
What precautions were taken during the installation process?
Precautions included cleaning and drying the engine components, draining out coolant from the oil pan, and cranking the engine over to build oil pressure before starting it. Additionally, the importance of double-checking the alignment of components after installation was emphasized.
What were the final steps after the replacement?
The final steps involved cleaning the front of the engine, draining and cleaning the oil pan, putting fresh oil in the engine, and checking for proper oil pressure. It was mentioned that the oil might need to be changed again after running the engine for a while to ensure any remaining contamination is removed.