Base 987 Track Problems?
05-14-2012, 06:25 PM
#2
2nd Gear
Join Date: Sep 2009
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Depending on year and model (987.1 versus 987.2) some potential issues include:
1. Intermediate Shaft (IMS) Bearing failure - seems to be limited to MY 2005 and earlier (I believe).
2. Oil starvation, especially under extreme cornering forces when running with R-comps, not so much if doing DEs on street tires. Fixes include installing a deeper oil sump, installing an improved internal oil baffle in the sump, and/or Accusump.
3. Air/oil mixing, causiing whirte smoke. Fix is to replace the stock Air-Oil Seperator with a motorsports version (expensive) or modifying a AOS from a 997 so it can fit.
4. Power steering overheating. Possible solutions include replacing the crank shaft pulley with a smaller diamter underdrive pulley, replacing the PS pump pulley with a larger diamater one, and/or installing a cooling system in the PS lines.
There's lots of info available on all these issues.
1. Intermediate Shaft (IMS) Bearing failure - seems to be limited to MY 2005 and earlier (I believe).
2. Oil starvation, especially under extreme cornering forces when running with R-comps, not so much if doing DEs on street tires. Fixes include installing a deeper oil sump, installing an improved internal oil baffle in the sump, and/or Accusump.
3. Air/oil mixing, causiing whirte smoke. Fix is to replace the stock Air-Oil Seperator with a motorsports version (expensive) or modifying a AOS from a 997 so it can fit.
4. Power steering overheating. Possible solutions include replacing the crank shaft pulley with a smaller diamter underdrive pulley, replacing the PS pump pulley with a larger diamater one, and/or installing a cooling system in the PS lines.
There's lots of info available on all these issues.
Last edited by chipb; 05-15-2012 at 03:31 PM.
