Welcome to RennTech.org Community, Guest
There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must log in to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.
Here are some of the features available - once you register at RennTech.org
- View Classified Ads
- DIY Tutorials
- Porsche TSB Listings (limited)
- VIN Decoder
- Special Offers
-
OBD II P-Codes - Paint Codes
- Registry
- Videos System
- View Reviews
- and get rid of this welcome message
It takes just a few minutes to register, and it's FREE
Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)
- No ads - advertisements are removed
- Access the Contributors Only Forum
- Contributing Members Only Downloads
- Send attachments with PMs
- All image/file storage limits are substantially increased for all Contributing Members
- Option Codes Lookup
- VIN Option Lookups (limited)
srsanford
-
Posts
6 -
Joined
-
Last visited
Content Type
Profiles
Events
Forums
External Paint Colors
Downloads
Tutorials
Links Directory
Collections
Store
Posts posted by srsanford
-
-
Porsche soft top “lid” motor drive
If the soft top roof moves, and the lid motor turns, but no lid movement-the drive from motor to lid cable gears may be slipping
The motor can easily be removed and tested for motor movement applying power to the two thickest lead when removed from the control unit
The potentiometer can be removed by unscrewing the lh thread 5mm Allen key mushroom bolt from the drive shaft( when the motor is bolted in place!!!) and the shaft removed from the potentiometer blue casing
Small screw underneath the blue potentiometer and clips to retain the top cover-to inspect the gear drive to the pot spindle…
The drive is adjusted by the “three turns in and loctite” procedure noted in the manual
The drive shaft moves in and out against the circlipped spring to engage the square section from the rounded centre “no drive” section of the shaft
The white sector cog to the potentiometer may be broken (Superglue???)
The motor must drive the square section (rear) end of the spindle to get any motion
Apply power to the disconnected plug from the control unit to get lid movement
The potentiometer must be set when the lid id in the manual-specified position
To 6.2kOhms accurate digital Avo meter
(We found that the pot value can be adjusted to 6.2kOhm without removing it-by loosening the mushroom bolt and turning the square drive shaft rear end-but will it record the correct lid position…?)
After this, and when the soft top is moving from locked/latched into the front screen lock, moving rearwards to folded down, then the lid should move forwards and down to seal correctly
Loosening the soft top interrogation potentiometer in the lh doorwell just in front of by rear lh wheel may help to get sequence initialised and movements started
Eventually, we got the soft top to latch and lock forwards, and to unlatch, move rearwards and fold, and then the lid to move down and forwards!!!
Hurrah-two tinnies
Now to get the rear windows to rise, the front windows to rise,
All the preceeding was done without the Porsche system tester, no new parts, but careful methodical testing, logical reasoning, and time
Don’t be scared of it: only microswitches, motors, pumps and rams
No expensive part is likely to REQUIRE replacement-only minor repairs…
And and cartwheel time!!
-
Wiring diag for 996 soft top
-
Wiring diagram for 996 soft top as .pdf
selected pages from Porsche soft top manual also as .pdf
srsanford@srsanford.plus.com
-
996 soft top manual available from
Porsche UK and Germany will not supply!!!
-
996 cab top stopped working completely: rear windows stopped until hardtop replaced...
Owner's Handbook gives emergency wind down
Soft top servivce manual (which I have)
particularly states
front cab top motor must have gears resynchronised before it has any chance of working-manual gives description
have also to move soft top lid to "service position" to uncover control box behind subchassis: in this position, softtop latches correctly; if lid tightened down manually , front latch recycles continuously...
have to reset the tin lid screw and relock with Loctite etc
We tested each loom emerging from control box finding ground, positive, and tested each rear flapmotor with ECT Power Probe 8000, moving screw pillar to limits
I replaced the potentiometer in lhs door well
(try unscrewing the pot and moving it to each limit)
evenyually we have soft top moving up and down, and latching correctly
Still have no movement from lid, no resumption of rear windows or front windows
manual says "have" to use Porsche system diagnosis to recalibrate"-one on ebay at £650!!! Has anyone knowledge of softwartre that can read codes through EBDv 2 socket and recalibrate???
Cheers
Steve Sanford
Spare tire question
in 997-1 Series (Carrera, Carrera 4, Carrera 2S, Carrera 4S)
Posted · Edited by srsanford
Hi Paulspeed
It would be great if you could definitely try the 996 skinny spare on your 997
and confirm it is driveable!
I want to buy a 996 skinny to use on my 997 gen.
Cheers
Steve Sanford