| Project 14: Intermediate Shaft Bearing Upgrade |
Intermediate shaft bearing failures are one of the most common problems with the Boxster and Carrera motors. Learn how to replace yours and keep your engine running trouble-free, featuring Pelican's replacement kit.
Click here to read the entire article on Project 14! |
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Intermediate Shaft Bearing (IMS) Retrofit Kits |
WARNING: Your Intermediate Shaft Bearing (IMS) could be failing! There are not many warning signs of an impending IMS failure short of a "death rattle" that occurs as the bearing fails and comes apart. If caught early enough, a leak at the IMS hub flange may be signs of a failing bearing, but can be improperly identified as a rear main seal (RMS) leak at times. If doing a RMS, it's recommended to do an IMS retrofit at the same time, as the majority of the labor is identical to that of performing the RMS service.
To see examples of some failed IMS Bearings, click here to watch a short video.
LN Engineering's single and dual row IMS Retrofit Kits are designed to replace the original bearings with like sizes and with similar load ratings, without engine disassembly. Their kits replace the factory sealed bearing with a new, severe duty custom ceramic hybrid roller ball bearing for reduced friction and superior performance in poorly lubricated operating conditions and replaces the factory IMS flange hub, bearing support, and fastener with a stronger, revised billet chromoly assembly. Kits also include new micro encapsulated cover bolts.
Single or Dual Row? Typically, 99% of models from 1997-99 have dual row, and 99% of models from 2002-05 have single row - figures are estimated. Models from 2000 and 2001 are the most unpredictable, and require inspection to determine the bearing type. For complete information about IMS Bearing identification and failure, read our Technical Article and also visit LN Engineering's IMS page.
NOTE: Use of the appropriate IMS Bearing Puller (sold separately) is highly recommended for proper extraction of the IMS Bearing without any damage to the engine or intermediate shaft. |
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LN Engineering M96 Intermediate Shaft Bearing (IMS) Retrofit Kit (inc. hub, install tool, retainer, and bearing), for Single Row IMS [Photo] | LN-106-08-2 | $799.00 |  |
LN Engineering M96 Intermediate Shaft Bearing (IMS) Retrofit Kit (inc. hub, install tool, retainer, and bearing), for Dual Row IMS | LN-106-08-4 | $799.00 | |
LN Engineering IMS Solution Intermediate Shaft Bearing Update Kit (updates from ball bearing to simple bearing with direct oil feed), For Cars With Single-Row IMS NOTE: THIS PRODUCT IS INTENDED TO BE INSTALLED BY A PROFESSIONAL MECHANIC ONLY | 10-0124-250-M835 | $1906.25 | |
LN Engineering Intermediate Shaft Bearing (IMS) Puller/Counterstay, for extraction of single or dual-row bearing intermediate shaft bearings safely. Includes: puller, driver, 5 chain and 3 chain engine cam locks, TDC lock pin, and broken stud easy-out. [Photo] | LN-106-08-13 | $350.00 | |
| Pelican Parts Intermediate Shaft Bearing (IMS) Update Kit |
| The Pelican Parts Intermediate Shaft Bearing Replacement Kit is a less-expensive solution to the excellent LN Engineering kit. The Pelican kit replaces the factory bearing with a very similarly manufactured non-ceramic bearing (and with an improved seal and updated center bolt). This one kit will work with either the single or dual row IMS on your M96 engine (1997-04) or your very early 2005 engine that doesn't utilize the newer oversize bearings. We recommend that the bearing be replaced each time a clutch replacement is performed (every 40,000 miles or so). The Pelican Parts Intermediate Shaft Bearing Replacement Kit includes:
• Improved center bearing bolt
• Outer race spacer (for engine with double-row bearings)
• Inner race spacer (for engine with double-row bearings)
• Replacement intermediate shaft bearing
• Center bolt O-ring
• Center bolt nut
• Long center bolt spacer (for engine with single-row bearings)
• Short center bolt spacer (for engine with double-row bearings)
• Snap ring (for engine with single-row bearings)
• Spiroloc snap ring (for engine with double-row bearings)
• 3 new micro-encapsulated cover bolts
• 3 M6x25mm installation helper bolts
• 3 M6x1x25mm set screws
• Updated 3-groove flange seal
• O-ring for older style flange seal The Pelican kit also uses the stock intermediate shaft bearing cover as a way to reduce the total cost of the kit. To read more about the Intermediate Shaft Bearing (IMS) Replacement, click here to read the entire article on Project 14 from 101 Projects for Your Porsche Boxster. If your intermediate shaft bearing cover has a single-row gasket, Pelican recommends that you replace it with the upgraded multi-row gasket intermediate bearing shaft cover 996-105-017-02-M100. |
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Pelican M96 Intermediate Shaft Bearing (IMS) Update Kit, for either Single or Dual Row IMS [Photo] | PEL-IMS-1 | $165.00 | |
LN Engineering Intermediate Shaft Bearing (IMS) Puller/Counterstay, for extraction of single or dual-row bearing intermediate shaft bearings safely. Includes: puller, driver, 5 chain and 3 chain engine cam locks, TDC lock pin, and broken stud easy-out. [Photo] | LN-106-08-13 | $350.00 | |
Intermediate Shaft Flange |
Intermediate Shaft Flange (Updated Version with 4 mm Thick Seal) NOTE: Also use one 900-380-019-01-M100 nut, Boxster thru Eng#65112851 (1997-01), Boxster S thru Eng#67111237 (2001)
Brand: Genuine Porsche [Photo] |  |
| 996-105-017-02-M100 | $153.00 | |
Intermediate Shaft Flange NOTE: Also use one 900-380-019-01-M100 nut, Boxster from Eng#65112852 (2001-04), Boxster S thru Eng#67111238 (2001-04)
Brand: Genuine Porsche [Photo] | |
| 996-105-024-01-M100 | $164.75 | |
| Intermediate Shaft Flange Nut |
Nut for Intermediate Shaft Flange
Brand: Genuine Porsche [Photo] | |
| 900-380-019-01-M100 | $3.75 | |
Porsche 986 Boxster (1997-04) |
| Intermediate Shaft Flange/Cover |
Intermediate Shaft Flange (Updated Version with 4 mm Thick Seal) NOTE: Also use- (1) 900 380 019 02 nut, Boxster thru Eng#65112851 (1997-01), Boxster S thru Eng#67111237 (2001)
Brand: Genuine Porsche [Photo] | |
| 996-105-017-02-M100 | $153.00 | |
Intermediate Shaft Flange NOTE: Also use- (1) 900 380 019 02 nut, Boxster from Eng#65112852 (2001-04), Boxster S thru Eng#67111238 (2001-05)
Brand: Genuine Porsche [Photo] | |
| 996-105-024-01-M100 | $164.75 | |
Center Nut for Stock Intermediate Shaft Bearing (IMS) Setup (not used unless you're simply replacing your cover seal) | |
| 900-380-019-01-M100 | $3.75 | |
| Intermediate Shaft Flange/Cover Seal |
Seal for Intermediate Shaft Flange, Late type seal (4 mm thick) for updated flange 996-105-017-01 or 996-105-024-01 (Also use three 900-385-275-01-M100 bolts), Boxster/Boxster S (1997-04), Each
Brand: Kaco [Photo] | |
| 996-105-112-01-M204 | $11.25 | |
| Air Oil Separator (For Oil Sump) |
| The engine air-oil separator is an emissions control device responsible for collecting residual gases and vapors contained inside the crankcase and funneling them back into the intake manifold where they can be burned in the combustion chamber. |
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Air Oil Separator (Inside Oil Sump of Engine, 2 per car), Boxster/Boxster S (1997-04), each
Brand: Genuine Porsche | 996-107-080-54-OEM | $37.25 | |
Seal for Air Oil Separator (Inside Oil Sump), Boxster/Boxster S (1997-04), each
Brand: Genuine Porsche | 999-701-789-40-OEM | $1.25 | |
| The Porsche Motorsports twin chamber air oil separator will cure the "oil smoke" problem caused by the regular unit being overwhelmed in track driving situations. This is designed for the 996, but will fit the Boxster and Cayman by using vent line 996-107-947-00-M100. |
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Air Oil Separator, High Performance Version (NOTE: Also use two 900-067-316-01-M100 bolts), Boxster/Boxster S (1997-04)
Brand: Genuine Porsche [Photo] | 996-107-926-00-OEM | $741.75 | |
Bolt (6x35mm) for High Performance Air Oil Separator (2 per car, sold individually), Boxster/Boxster S (1997-04)
Brand: Genuine Porsche | |
| 900-067-316-01-M100 | $5.25 | |
Vent Line for use with High Performance Air Oil Separator, Boxster/Boxster S (1997-04)
Brand: Genuine Porsche | |
| 996-107-947-00-M100 | $130.00 | |
| Camshaft End Plug |
Cylinder Head Plug (Camshaft End Plug) (4 per car, sold individually), Boxster/Boxster S (1997-04) - 1 needed for retrofit on a 5-chain car (1997-02 Boxster), 2 needed for retrofit on a 3-chain car (2003-04 Boxster) when performing IMS retrofit
Brand: Genuine Porsche [Photo] | |
| 996-104-215-54-M100 | $14.00 | |
Cylinder Head Plug (Camshaft End Plug) (4 per car, sold individually), Boxster/Boxster S (1997-04) - 1 needed for retrofit on a 5-chain car (1997-02 Boxster), 2 needed for retrofit on a 3-chain car (2003-04 Boxster) when performing IMS retrofit
Brand: German | |
| 996-104-215-54-M127 | $4.50 | |
Cylinder Head Plug (Camshaft End Plug) (4 per car, sold individually), Boxster/Boxster S (1997-04) - 1 needed for retrofit on a 5-chain car (1997-02 Boxster), 2 needed for retrofit on a 3-chain car (2003-04 Boxster) when performing IMS retrofit
Brand: O.E.M. | |
| 996-104-215-54-M260 | $9.50 | |
Sealing Ring, 27 X 32, each | 900-123-147-30-OEM | $1.25 | |
Sealing Ring, A 27 X 32, Each
Brand: Fischer & Plath | |
| 900-123-147-30-M131 | $0.50 | |
| Curil-T Sealant |
| Curil-T is a good, thin sealant that I use as an extra precaution against oil leaks when installing some seals. You will want to spread it around on a few of the seals and gaskets during the rebuild process. |
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Curil-T Sealant, 75ml tube
Brand: Elring Klinger [Photo] | PEL-246948 | $14.00 | |
| Camshaft Tools |
| This special service tool was developed for the crucial task of securing the Intake and Exhaust Camshafts in relation to each other during base timing, etc. Trying to do this task with any other method is risking a total engine failure. |
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Camshaft Securing Tool, for 5-chain engines - Boxster (1997-04), Each | PEL-TOL-P253 | $184.00 | |
Camshaft Securing Tool, for 3-chain engines, P9686 - Boxster (1997-04), Each | 000-721-968-60-OEM | $173.25 | |
