Water Pump Damage From Tensioner Misalignment Or Damage -

Water Pump Damage From Tensioner Misalignment Or Damage

Visual inspection is required to verify the correct alignment of chain tensioner and guide. Inspect for broken, cracked or missing guide material as well. It is not advised to reuse misaligned components. Also, check the chain for any imperfections.

Symptoms

Water pump has missing or broken teeth, or sprocket falls off the shaft.

Probable Cause of Failure

Misalignment or damage of the tensioner, guide or chain.

Corrective Action

Visual inspection is required to verify the correct alignment of chain tensioner and guide. Inspect for broken, cracked or missing guide material as well. It is not advised to reuse misaligned components. Also, check the chain for any imperfections.

Figure 1: Correct alignment of tensioner and chain guide.
Figure 1: Correct alignment of tensioner and chain guide.

 

Figure 2: Incorrect alignment of tensioner and chain guide.
Figure 2: Incorrect alignment of tensioner and chain guide.

 

Figure 3: If the chain looks like the circled areas, it is time to replace the timing components. Notice how the chain sags; this should not occur in any location of the chain drive. If slack is present, replace the chain, chain tensioner and chain guides.
Figure 3: If the chain looks like the circled areas, it is time to replace the timing components. Notice how the chain sags; this should not occur in any location of the chain drive. If slack is present, replace the chain, chain tensioner and chain guides.

 

Figure 4: In these circles, there is no slack present. This is the optimal position for the chain.
Figure 4: In these circles, there is no slack present. This is the optimal position for the chain.

Article courtesy Gates.

You May Also Like

JEEP Steering Shimmy Solution

Replacement of the steering damper with AE level or newer is recommended.

Wrangler 2017-Newer

If a driver complains of a shimmy in the steering wheel after hitting an irregularity in the road surface such as an expansion joint, pothole or bump. Replacement of the steering damper with AE level or newer (AE will be the last two position of the steering box part number) is recommended. Vehicles built after 4/9/2019 are equipped with the new design damper.

Brake Problems

Reducing brake drag on late-model vehicles is not accomplished by a single component; it takes a system.

Transmission Valve Body Service

Four basic items are necessary to start your own reprogramming ventures.

Fuel Pumps and Cranking

Diagnosing the problem comes down to understanding what causes a loss of fuel pressure.

ADAS and Vehicle Alignment

New vehicle ADAS features all rely on the alignment being exactly as it should be.

Other Posts

PCV System DTC

PCV systems control crankcase pressure.

A/C Condenser Clogs

When a compressor fails, the question for most technicians is whether to flush the condenser or replace it.

ADAS False Activation Evolution

The logic behind most ADAS warnings or corrections is to examine the plausibility of the situation.

Checking The Auxiliary Water Pump

A car or truck comes into the shop with a complaint of poor heater performance. The issue may be the auxiliary water pump.

Tech holds up heater core