2006-2009 Honda S2000 Timing Cover: Leaks, Part Numbers, and Replacement
This guide covers the common oil leaks, part number specifics, and replacement challenges for the timing chain cover on 2006-2009 Honda S2000 models.
- The most common failure is an oil leak from the liquid gasket or the front crankshaft seal, not the cover itself.
- The correct OEM part number for 2006-2009 models is 11410-PCX-010, which is reportedly discontinued, making used OEM parts the most viable option.
- Replacement is a highly labor-intensive job (4/5 difficulty) requiring removal of the oil pan and crank pulley, making professional installation common.
- When buying a used cover, inspect the flat sealing surfaces for any deep scratches, gouges, or cracks, as these will prevent a proper seal.
What Does the 2006-2009 S2000 Timing Cover Do?
The timing cover, also called the chain case, is a critical component on the front of your 2006-2009 Honda S2000's 2.2L F22C1 engine. Its primary job is to shield the timing chain, which synchronizes the rotation of the crankshaft and camshafts. This precise timing is essential for engine performance and preventing internal damage. The cover also seals the front of the engine to keep oil in and dirt out. Importantly, the timing cover houses the front crankshaft seal, a common source of oil leaks. Made of cast aluminum, the cover itself rarely fails, but the gaskets and seals associated with it are common wear items.
Symptoms of a Failing S2000 Timing Cover
Failure of the timing cover assembly almost always presents as an oil leak. The cover itself is a durable piece of metal; the problem is typically a worn-out gasket or seal. Here are the specific signs to look for:
- Visible Oil on the Front of the Engine: This is the most obvious symptom. You may see fresh, wet oil or an accumulation of dark, oily grime on the aluminum cover, especially around its edges where it meets the engine block.
- Oil Dripping Under the Car: If the leak is significant, you'll find oil spots or puddles on the ground directly under the front of the engine. Leaking oil often drips onto the oil filter or the splash shield first.
- Burning Oil Smell: Oil leaking from the timing cover area can drip onto the hot exhaust manifold or other engine components, causing a distinct burning oil smell, especially after the car has been driven.
- Low Engine Oil Level: A slow leak may cause your engine oil level to drop between oil changes, potentially triggering the low oil pressure warning light if it gets too low.
Pro Tip: Before assuming the main timing cover gasket is the culprit, check two other common leak points in the same area: the small, triangular timing chain tensioner (TCT) inspection cover gasket and the valve cover gasket. These are much easier and cheaper to replace and can be mistaken for a more serious timing cover leak.
Known Issues, TSBs, and Recalls
There are no official recalls or widespread Technical Service Bulletins (TSBs) from Honda specifically for timing cover failure on the 2006-2009 S2000. The primary known issue, widely discussed by owners in forums, is the tendency for oil leaks to develop from the seals over time. While the timing chain tensioner (TCT) is a well-known weak point that can create a rattling noise, this is a separate component, though it is accessed through the timing cover.
Buying a Used S2000 Timing Cover: What to Check
Since the correct OEM timing cover for 2006-2009 models (part number 11410-PCX-010) has been reported as discontinued by Honda, the used market is often the only source for a genuine part. Here’s what to inspect before buying a recycled OEM cover:
- Check for Cracks and Damage: Carefully inspect the entire cover, especially around the bolt holes and edges, for any cracks or impact damage. A cover that was removed from a wrecked engine could have hidden damage.
- Inspect the Gasket Surfaces: The most critical areas are the flat surfaces where the cover meets the engine block, cylinder head, and oil pan. Run your finger along these surfaces to feel for deep scratches, gouges, or warping. Any imperfection can prevent the new liquid gasket from sealing properly, leading to immediate leaks.
- Verify the Part Number: For a 2006-2009 S2000, you need part number 11410-PCX-010. The earlier 2000-2005 models used part number 11410-PCX-000. While they look similar, there are differences related to sensor mounting, and using the wrong one can cause issues.
- Ignore Old Seals: The used cover will still have the old front crankshaft seal installed. This seal should always be discarded and replaced with a new one during installation. Do not judge the cover based on the condition of the old seal.
Warning: Do not use a timing cover with any visible cracks or deep scratches on the sealing surfaces. It is not worth the risk of having to do the entire labor-intensive job over again for a persistent leak.
Installation Tips and Replacement Overview
Replacing the S2000 timing cover is a complex and time-consuming job, not recommended for beginners.
- Difficulty: 4 out of 5
- Key Steps: The process involves draining the oil and coolant, removing the valve cover, serpentine belt, crank pulley, water pump pulley, idler pulley, and the oil pan.
- Stubborn Removal: The factory uses a strong sealant (Hondabond), and the cover can be very difficult to remove. There are specific pry points on the cover; prying in the wrong spot can crack the cast aluminum.
- Essential Replacements: When the timing cover is off, you MUST replace the front crankshaft seal (Honda part # 91212-PCX-003) and use a new application of liquid gasket (such as Hondabond HT) for the cover itself. It's also a good time to replace the valve cover gasket and the small TCT inspection cover gasket.
Cost Comparison: New vs. Used S2000 Timing Cover
Labor is the most significant expense for this repair due to the extensive disassembly required.
| Part Type | Estimated Cost | Notes |
|---|---|---|
| New OEM | $150 - $180 | Part is widely reported as discontinued, making it very difficult to find new. |
| New Aftermarket | $300+ | Standard replacements are not common. High-performance billet aluminum versions exist but are for custom/racing applications. |
| Used OEM | $120 - $250 | The most common and practical option. Prices vary based on condition and availability. |
| Shop Labor | $800 - $1,200 | This is a labor-intensive job. Labor costs are similar to a timing chain replacement. |
Frequently Asked Questions (FAQ)
Can I reuse my old timing cover gasket?
No. The Honda S2000 does not use a pre-formed, solid gasket for the timing cover. It uses a liquid sealant (like Hondabond) that is applied during installation and cures to form a custom gasket. This sealant must be completely removed and a fresh bead applied every time the cover is installed.
Is a timing cover leak an emergency?
It depends on the severity. A very slow seep or weep is not an immediate emergency, but it should be monitored closely by checking your oil level frequently. A steady drip or active leak should be repaired as soon as possible. If the engine runs low on oil, it can lead to catastrophic failure.
Will the timing cover from an older S2000 (AP1) fit my 2007 S2000 (AP2)?
No, it is not a direct fit. The timing cover for 2006-2009 models is part number 11410-PCX-010. Earlier models used a different part number. The differences are related to changes Honda made to the engine's sensor configuration between model years. You must use the correct cover for your vehicle's year range.
Does replacing the timing cover require re-timing the engine?
No, simply removing and reinstalling the cover does not require re-timing the engine, as long as the timing chain is not removed from its sprockets. However, the job requires removing the oil pan and valve cover, so it is a complex procedure.
Part Numbers and Specifications
| Part Name | Part Number | Vehicle Fitment |
|---|---|---|
| Chain Case Assembly (Timing Cover) | 11410-PCX-010 | 2006-2009 Honda S2000 |
| Chain Case Assembly (Timing Cover) | 11410-PCX-000 | 2000-2005 Honda S2000 |
| Crankshaft Oil Seal (Front) | 91212-PCX-003 | 2000-2009 Honda S2000 |
| Liquid Gasket | 08718-0004 (Hondabond HT) | Recommended for sealing cover |
Technical Specifications
OEM Part Numbers: 11410-PCX-010 11410-PCX-000
Material: Cast Aluminum. Gasket Type: Form-in-place liquid gasket (Hondabond HT or equivalent).
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Honda S2000:
- What Does the 2006-2009 S2000 Timing Cover Do?
- Symptoms of a Failing S2000 Timing Cover
- Known Issues, TSBs, and Recalls
- Buying a Used S2000 Timing Cover: What to Check
- Installation Tips and Replacement Overview
- Cost Comparison: New vs. Used S2000 Timing Cover
- Frequently Asked Questions (FAQ)
- Part Numbers and Specifications
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