Nissan Engine Valve Cover & Timing Check
Engine Repair · Deira, Dubai
Rubber valve cover gasket hardened and cracked due to engine heat exposure, allowing oil to leak onto the exhaust manifold..

Case 05 · Deira
2016 Nissan Sunny
- Response
- 30 min
- Completed in
- 2.0 Hours
- Location
- Deira
The vehicle & the brief.
2016 Nissan Sunny
Engine oil burning smell inside cabin, oil seepage around cylinder head
30 minutes
2.0 Hours
How this case was solved.
A step-by-step breakdown of what we found, what we tested, what we replaced, and what we measured at the end.
- 01
Problem
Rubber valve cover gasket hardened and cracked due to engine heat exposure, allowing oil to leak onto the exhaust manifold.
- 02
Diagnosis
- 01Visual inspection of cylinder head perimeter
- 02Timing chain tension and guide wear assessment
- 03Spark plug tube seal leak check
- 03
Solution
Removed valve cover, cleaned mating surfaces, installed a new OEM gasket set and spark plug tube seals, and resealed with high-temp RTV silicone.
- 04
Result
Oil leaks completely resolved; cabin odor eliminated and engine bay clean.
What we replaced.
Only OEM or dealership-equivalent parts are used. Every part below was installed onsite and is covered by our 12–24 month warranty.
Total parts
03
- 01OEM Valve Cover Gasket
- 02Spark Plug Tube Seals
- 03High-Temp Gasket Sealant
Frequently asked questions.
01What causes valve cover gaskets to leak?
Continuous exposure to high engine temperatures causes the rubber material to lose flexibility, harden, and crack over time.
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Wadi Al Safa 3, Al Barari · Dubai
