* Crankshaft Seal (Front): This is the most likely culprit. The front crankshaft seal is located right where the timing belt goes, and during the timing belt replacement, it's possible the seal was damaged, dislodged, or not properly seated. This is a common problem when performing this type of work.
* Oil Pump Seal: While less likely than the crankshaft seal, the oil pump seal is also near the timing belt area and could have been disturbed during the repair.
* Improperly Installed Timing Belt Cover Gasket: If the timing belt cover wasn't properly sealed back up after the replacement, oil could be seeping from there, giving the appearance of a crankshaft leak.
* Damage to the Timing Cover Itself: In rare cases, the timing cover might have been damaged during the repair, causing a crack or warping that allows oil to leak.
* Other Seals in the area: While less probable, other seals around the timing cover could have been compromised.
Why it's likely related to the timing belt replacement: Accessing the timing belt requires removing components that are close to the crankshaft seal, making accidental damage relatively easy.
What you should do:
1. Thoroughly clean the area: Before you start tearing things apart, clean the engine around the suspected leak area with a degreaser and a parts cleaner. This will allow you to more accurately pinpoint the source of the leak after a short drive.
2. Inspect for obvious leaks: Once clean, carefully examine the area for any obvious leaks. Look closely at the crankshaft seal, oil pump seal, timing cover gasket, and timing cover itself.
3. Professional Inspection (Recommended): Given the complexity of this situation and the potential for further damage, taking your car to a mechanic is highly recommended. They have the experience and tools to properly diagnose the leak and perform the necessary repair. Attempting to fix it yourself without the proper knowledge could lead to more extensive engine damage.
Cost considerations: Replacing the crankshaft seal is a relatively common repair, but the labor cost can vary. Expect a cost range from a couple hundred dollars to potentially more depending on your location and the mechanic.
In short, don't ignore the oil leak. A small leak can quickly become a major problem if left untreated, potentially causing significant engine damage. Get it checked by a professional as soon as possible.
