IMS Services by McIlvain Motors to Protect Porsche Engines
Intermediate Shaft (IMS) bearing failure is one of the most concerning issues for Porsche owners. If ignored, it can lead to complete engine destruction. Fortunately, IMS Services by McIlvain Motors offer proven, professional solutions to identify and resolve this problem before it becomes catastrophic. With years of Porsche-only experience, McIlvain Motors stands as one of Arizona’s most trusted Porsche repair shops.
This guide explores everything you need to know about IMS bearings, including what they are, why they fail, and how McIlvain Motors can protect your Porsche investment.
What Is the IMS Bearing in a Porsche Engine?
Understanding the IMS Bearing
The IMS (Intermediate Shaft) bearing supports the intermediate shaft in Porsche’s M96 and early M97 engines. This shaft drives the camshafts using chains from the crankshaft.
Porsche Models Affected
The IMS issue affects the following models:
1997–2008 Porsche 911 (996 and early 997)
1997–2008 Porsche Boxster (986 and early 987)
2006–2008 Porsche Cayman
If you own one of these, IMS bearing inspection or replacement is crucial.
Why the IMS Bearing Fails
Poor Lubrication
The original sealed bearing lacks engine oil circulation, leading to overheating and eventual failure.
Contaminated Seals
Over time, bearing seals break down. This allows debris and old grease to wear down the bearings.
High Mileage or Age
Even low-mileage cars may suffer bearing failure simply due to aging components.
Incorrect Design
Some factory designs used single-row bearings, which are weaker and more prone to failure than the later dual-row versions.
Symptoms of IMS Bearing Failure
Recognizing early signs can help prevent engine failure:
Metallic noise from engine
Oil leaks near rear main seal
Check engine light
Metal flakes in oil filter or drain plug
Loss of timing or catastrophic engine failure
Many symptoms appear too late. Preventative service is always the best route.
Why IMS Services by McIlvain Motors Stand Out
Porsche-Only Expertise
McIlvain Motors only services Porsche vehicles. This laser focus guarantees deep knowledge of the IMS system.
Proven Track Record
They have successfully performed hundreds of IMS replacements and retrofits with zero failures.
High-Quality Components
McIlvain uses the industry’s most trusted IMS bearing kits from LN Engineering and other OEM-grade suppliers.
Precise Installation
All installations are performed with Porsche-specific tools, torque specs, and clean-room procedures.
IMS Services Offered by McIlvain Motors
IMS Inspection
Technicians inspect the IMS bearing during clutch replacement or major service intervals using specialized tools and camera scopes.
IMS Retrofit
This service involves replacing the factory sealed bearing with an improved, serviceable bearing. It includes:
Removal of transmission and clutch
Removal of the old IMS bearing
Installation of a new, upgraded IMS bearing
Reassembly with new gaskets, fasteners, and fluids
IMS Solution Installations
For ultimate peace of mind, McIlvain Motors offers the IMS Solution—a permanent fix that eliminates the bearing entirely. This system uses pressurized oil lubrication and requires no future service.
Clutch and RMS Combo Service
IMS replacements often occur alongside clutch and rear main seal (RMS) replacements to save labor costs.
IMS Retrofit Options Available
IMS Kit Type Description Maintenance Lifespan
Single Row Pro For MY 2000–2005 Serviceable 40,000–50,000 miles
Dual Row Retrofit For MY 1997–1999 Serviceable 75,000+ miles
IMS Solution Oil-fed system Permanent Lifetime
McIlvain Motors recommends the IMS Solution for long-term ownership or high-performance use.
IMS Services by McIlvain Motors: Step-by-Step Process
1. Initial Diagnosis
They inspect the engine, check for oil leaks, and scan for fault codes to determine IMS service needs.
2. Transmission Removal
Technicians remove the transmission, clutch, and flywheel to access the IMS bearing.
3. Bearing Extraction
They carefully remove the old IMS bearing using custom tools and safe procedures.
4. Bearing Installation
The new bearing or IMS Solution is installed using precision torque settings and fresh seals.
5. Clutch Inspection
They inspect the clutch and flywheel. If worn, McIlvain offers discounted replacement during IMS service.
6. Rear Main Seal Replacement
This is a common oil leak point. Replacing the seal during IMS service avoids future labor.
7. Reassembly
They reassemble all components, replace fluids, and road test the vehicle for performance and leaks.
Porsche Models Commonly Serviced for IMS
Porsche 911 (996)
Years: 1999–2004
Common issues: Single-row bearings with high failure rates
Porsche 911 (997.1)
Years: 2005–2008
Not all 997s have serviceable bearings, but McIlvain can verify.
Porsche Boxster (986)
Years: 1997–2004
Both dual-row and single-row bearings installed depending on the production year.
Porsche Cayman (987.1)
Years: 2006–2008
Shares engine design with 987 Boxster. Needs the same IMS attention.
IMS Services vs Engine Replacement
Failing to replace a worn IMS bearing can result in complete engine destruction.
Service Type Cost Range Risk
IMS Retrofit $2,000–$3,000 Prevents engine failure
IMS Solution $3,000–$4,500 Permanent solution
Engine Replacement $15,000–$25,000 After failure
Conclusion: Proactive IMS service saves thousands of dollars in the long run.
Additional Services Offered During IMS Repair
Clutch Replacement
If your clutch shows wear, McIlvain Motors can replace it during IMS service at reduced labor cost.
Flywheel Resurfacing or Replacement
They inspect and repair flywheels to prevent vibration and performance issues.
Rear Main Seal Replacement
RMS leaks are common in affected engines. McIlvain replaces this seal while performing IMS repairs.
Oil Change
Fresh oil and filter ensure no metal particles remain in the system post-repair.
Frequently Asked Questions (FAQs)
1. Does every Porsche need IMS service?
No. Only models with M96 or early M97 engines require IMS inspection or retrofit.
2. How long does IMS service take?
Typically 1–2 business days depending on additional services.
3. What’s the best IMS solution?
The IMS Solution is the most permanent fix. Otherwise, use LN Engineering’s Pro kits.
4. Do I need a new clutch during IMS replacement?
Not always. But if your clutch is worn, it makes sense to replace it now.
5. Can McIlvain check if my car has had the IMS done?
Yes. They inspect and verify IMS bearing type, condition, and prior service history.
Testimonials from Real McIlvain Motors Clients
“McIlvain Motors saved my engine. I had no idea my IMS bearing was close to failing.”
– Derek H., Scottsdale
“I went with the IMS Solution. Total peace of mind. They even replaced my clutch.”
– Lisa M., Tempe
“Other shops gave me the runaround. McIlvain diagnosed the issue fast and explained every step clearly.”
– Tom R., Phoenix
Why Now Is the Right Time for IMS Services
IMS bearings age whether you drive or not. If your Porsche hasn’t had its IMS inspected or retrofitted, it could be at serious risk. The cost of prevention is a fraction of what engine replacement would cost. Book your inspection or retrofit now.
How to Schedule IMS Services by McIlvain Motors
Business Name: McIlvain Motors
Location: 939 S 48th St #215, Tempe, AZ 85281
Phone: (480) 968-2858
Website: www.mcilvainmotors.com
Hours: Monday–Friday, 8:00 AM – 5:00 PM
Services Available: IMS inspection, IMS Solution, clutch replacement, oil change, RMS replacement
They offer same-day drop-off, digital inspection reports, and service warranty options.
Conclusion
IMS Services by McIlvain Motors offer Porsche owners peace of mind and mechanical security. With unmatched experience, factory-level tools, and a laser focus on Porsche vehicles, they remain Arizona’s premier choice for IMS inspection and retrofit. Whether you plan to drive daily, take your car to the track, or keep it as a long-term investment, don’t wait for warning signs. Schedule proactive IMS service today and protect your engine tomorrow.
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