checking engine / tranny mounts

[p0rsch3]

I'm in process of tracking down an odd thump when shifting from 1st to 2nd under hard accell. Feels like an engine mount or something along those lines, so putting it up on my buddy's lift this next weekend.

(this issue is different than the buzzing vibration noise in my other thread- trying to find that too!)

I am not familiar with the mounts on a 996 engine and tiptronic trans- how does one check to see if the mounts are bad? Is changing them pretty straight-forward? I've done this on other cars, just not a pcar.

Any insight is appreciated. I searched the site but did not find any decent info.

Edited March 6, 2008 by p0rsch3

[wvicary]

The engine mounts are hydraulic dampened so look for any leakage. The rubber can develop cracks,sags or tear away from the outer metal casting. Porsche often gives a minimum height for mounts, I'll look through the manual and post them if I find the info.

[p0rsch3]

The engine mounts are hydraulic dampened so look for any leakage. The rubber can develop cracks,sags or tear away from the outer metal casting. Porsche often gives a minimum height for mounts, I'll look through the manual and post them if I find the info.

awesome- thank you for your input. how is the height measured for the mount?

[wvicary]

Hi p0rsch3, The measurement is slightly different of each model, it to assess if the mount is collapsed. Sorry but the manual is at work and I'll post the info asap.

[KevinMac]

Here ya go the manuals are available for downloading

http://www.cannell.co.uk/Manuals.htm

[p0rsch3]

Here ya go the manuals are available for downloading

http://www.cannell.co.uk/Manuals.htm

Awesome- you da man! Thanks

[Loren]

Just an FYI...

Those manuals are missing pretty much the last 50 plus updates (which is several thousand pages).