Crankshaft Rear Oil Seal Inspection
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NOTE:
Slight surface oil dampness without drops are acceptable and should not be repaired as a leak.
Remove the engine and / or transmission undershield(s) to gain access to the engine and transmission mating area. Refer to: ENGINE UNDERSHIELD
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NOTE:
Allowing the vehicle to stand for 1 hour will allow any oil to drop to the bottom of the transmission housing.
Make sure the engine is switched off and allow the vehicle to stand for 1 hour before proceeding to the next step.
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NOTE:
Make sure that any Noise, Vibration and Harshness (NVH) pads are peeled back to clean off any oil residue that may have seeped underneath.
Clean the mating faces of the engine and transmission using a suitable degreaser.
Using a suitable rag, wipe the engine and transmission, removing any remaining oil residue and degreaser.
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Using a suitable leak detection spray, thoroughly coat the engine and transmission mating area.
- Remove the vehicle from the ramp and allow the vehicle to idle for 10 minutes.
- Increase the engine speed to 2000 RPM for 30 seconds and return to idle.
- Allow the vehicle to idle for 10 minutes.
- Switch off the engine and leave the vehicle to stand for 1 hour.
- Place the vehicle back onto a suitable ramp and re-inspect for signs of leakage.
Crankshaft Rear Oil Seal Inspection Example Images.
The image below shows an OK condition; no visible evidence of oil. No crankshaft rear oil seal inspection test required.
The image below shows a not OK condition; the oil is a light brown color and is sticky to the touch. This can indicate an excess amount of shipping wax. Crankshaft rear oil seal inspection test required.
The image below shows a not OK condition; Oil is present between the engine and transmission mating faces, including evidence of oil in the 3 breather holes. Crankshaft rear oil seal inspection test required.