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Recommended Posts

Posted

Hi All,99 Boxster. In removing Flywheel do I need to use a flywheel lock if I'm locking the crankshaft at TDC? And...to check the timing after cam cover removal and IMS job... if the crank is locked at TDC and I check the cams with the P253 timing tool the cams are timed with the crank as well because the crankshaft is at TDC...correct? Another words there isn't a procedure for checking the crank with the cams. Thanks V

  • Moderators
Posted
2 hours ago, vza said:

Hi All,99 Boxster. In removing Flywheel do I need to use a flywheel lock if I'm locking the crankshaft at TDC? And...to check the timing after cam cover removal and IMS job... if the crank is locked at TDC and I check the cams with the P253 timing tool the cams are timed with the crank as well because the crankshaft is at TDC...correct? Another words there isn't a procedure for checking the crank with the cams. Thanks V

 

Where to begin..........  Yes, you should lock the flywheel when removing it, even though the crank is locked at the pulley end.  The front crank locking pin is only 5/16 in diameter, and inserts into an alloy boss on the engine cases, so the torque to loosen the flywheel bolts could damage the pin or boss.  Lock the flywheel end before starting.

 

The “cam allocation” procedure to retime the cams to the engine runs some 12-14 pages in the service manual, so I would suggest you need to get access to this information before starting this project.  We have often been brought cars where the owner’s thought they knew what they were doing, but really didn’t.  The result of a small error in this process can have catastrophic results on the engine, so you need to completely understand the process and tooling required before even starting this process.

 

Good luck.

Posted

Ok thanks, I have the Bentley manual \ 101 projects...read a lot diy at pelican and thought I had it straight in my head. Can you point me in the direction to a serv manual, the Porsche manuals are more than half I paid for the car...The work I'm doing is the IMS, RMS and solenoid replacement on bank 2 and was inquiring about timing as to check that it wasn't lost after my work was complete. Thanks again for responding any additional input would be appreciated. Vin

  • Moderators
Posted
14 hours ago, vza said:

Ok thanks, I have the Bentley manual \ 101 projects...read a lot diy at pelican and thought I had it straight in my head. Can you point me in the direction to a serv manual, the Porsche manuals are more than half I paid for the car...The work I'm doing is the IMS, RMS and solenoid replacement on bank 2 and was inquiring about timing as to check that it wasn't lost after my work was complete. Thanks again for responding any additional input would be appreciated. Vin

 

The only source for the service manuals is the factory, but they stopped printing them over a decade ago.  You can still find the 13 volume three ring binder sets running around on the internet for reasonable prices:

 

1997-2004_Boxster.jpg

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