Tool Needed to Replace Timing Chain-Driven Water Pump

Tech Tip: Tool Needed to Replace Timing Chain-Driven Water Pump

Replacing this water pump requires a special tool to secure the water pump sprocket. Failure to do so could result in misalignment of the engine’s balance shafts or significant engine damage. Remove the water pump access plate from the timing cover and install J 43651 Water Pump Sprocket Holding Tool, or equivalent. Secure tool to the sprocket and front cover and remove the sprocket bolts. Remove the water ....

Affected Vehicles:
2008-00 Chevrolet, Oldsmobile, Pontiac, Saab and Saturn with a timing chain equipped 2.0, 2.2 or 2.4L Ecotech engine.

Condition:
Replacing this water pump requires a special tool to secure the water pump sprocket. Failure to do so could result in misalignment of the engine’s balance shafts or significant engine damage.

Cause:
If the sprocket is not secured, the balance shaft weights may rotate the chain and sprocket after the sprocket is unbolted.

Correction:
Remove the water pump access plate from the timing cover and install J 43651 Water Pump Sprocket Holding Tool, or equivalent. Secure tool to the sprocket and front cover and remove the sprocket bolts. Remove the water pump feed pipe and bolts that secure the pump to the engine block and the front cover. NOTE: It may be necessary to remove the exhaust manifold. Remove the water pump. Reverse this procedure to install being certain to follow the manufacturer’s recommended torque values and sequence.

Tech Tip courtesy of ASC Industries, Inc.

For information of products offered by ASC Industries, visit www.asc-ind.com.

You May Also Like

Toyota FJ Cruiser Water Pump Replacement

Toyota’s original Land Cruiser was the company’s version of a Jeep that could go anywhere. In its time it was highly rated and collected, which led the Japanese juggernaut to bring back an updated SUV in 2007 called the FJ Cruiser. The retro-styled vehicle was again a go anywhere machine powered by a 4.0L V6 (1GR-FE) used in the Tacoma. The engines are durable and considered relatively robust for the time.

Toyota’s original Land Cruiser was the company’s version of a Jeep that could go anywhere. In its time it was highly rated and collected, which led the Japanese juggernaut to bring back an updated SUV in 2007 called the FJ Cruiser. The retro-styled vehicle was again a go anywhere machine powered by a 4.0L V6 (1GR-FE) used in the Tacoma. The engines are durable and considered relatively robust for the time.

Long-Life Coolants Explained

Different types of coolants cover a range of applications from diesel to domestic, Asian and European vehicles. Each one is formulated to a specific manufacturer’s specifications to keep their engines at an optimal temperature. But, changes to the old one-size-fits-all formula has led to confusion for consumers and even some technicians.

VIDEO: Engine Efficiency Brings More Hoses

Andrew Markel discusses hoses and the necessity for several of them to route fluids to all parts of the vehicle due to the growing efficiency of engines. Sponsored by Dayco.

oil-coolant-hoses-video-featured
Diagnosing Intelligent Cooling Systems

The majority of cooling systems on the roads react to what is happening inside the combustion chamber. After the engine is stressed, the heat causes the thermostat to open. Increases in temperatures will also cause the cooling fans to come on. The heat carried by the coolant is the trigger for operation of the fans and thermostat.

Modern Cooling System Design: It’s Not About Temperature; It’s About Powertrain

Given the advanced state of internal combustion engine technology, some recent cooling system innovations will actually increase engine torque and fuel economy while reducing exhaust emissions. Let me simplify that idea: new cooling system technology will make engines run better and cleaner. So, let’s get on the same page by reviewing some basics.

Other Posts

Auxiliary Cooling Pumps

An auxiliary cooling pump’s primary function is to circulate warm coolant to the heater core.

Why Does Engine Coolant Need Replacement?

Two specifications can be used to justify replacement — the condition of the additive package & the freezing point.

Carter Expands Rapid Fit Coverage, Releases New Catalog

Rapid Fit Water Pumps help save an average of 15 to 25 minutes in the bay, according to Carter.

Mini Cooper Water Pump Service

The water pump is turned by a metal wheel driven by the crankshaft pulley.