It is currently Wed Dec 13, 2017 7:38 am




Post new topic Reply to topic  [ 9 posts ] 
 Sunroof Slooooow 
Author Message
Granny Driver

Joined: Thu Oct 13, 2011 11:45 am
Posts: 26
Location: Denver Colorado
Post Sunroof Slooooow
Hey Guys. I have been chipping away at the 928’s to do list. When I bought the car last year the sunroof would barley move (actually it did not work), so I found this write up (Thanks MPDano) online that showed me how to clean the tracks etc. I took it apart and cleaned it as well as possible and after the cleaning it worked great. I then lubed it up with white lithium grease and it worked fine. It was not really fast but it ran smooth. I put it back together and it would move on its own which was an improvement but it would stall out in places. I thought this was due to the battery being low on power because it has been sitting around for a while. So I charged it up and it moved a little better but it still needs some help.

To my questions:
I have cleaned all of the ground points but I have heard that there is a ground point above the fuse panel. Is this true for my 928?
Do you think I should take the roof back apart and clean it again?
Do you think that it could be the motor? I measured the watts going to the motor and it was 9.8 give or take a couple.
Any help would be great.

It is 1981 5 speed

_________________
Jay

81 Porsche 928
95.5 S6 Wagon
00 S4
72 Audi 100 LS


Fri Mar 23, 2012 7:18 am
Profile
Webmaster
User avatar

Joined: Mon Jan 07, 2008 8:43 pm
Posts: 2078
Location: Sunny San Diego
Post Re: Sunroof Slooooow
What is the temp outside? Mine was moving super slow when i opened it up this morning, but it's cold out. I am sure it will ope n at normal speed once it warms up. Lithium Grease is pretty heavy stuff. I used Silicone Spray on mine. Plus, unless you got 100% of the old grease, that original old grease is very thick as well. Plus, match that up with a 30 year old electric motor ad walla, it is what it is. :driving:

_________________
1981 Porsche 928 "Euro" 4.5 Litre Auto Gunsmoke Metallic Flat - Black Interrior
1983 Porsche 928S "US" 4.7 Litre Auto Light Bronze (Copper) Metallic - Brown Interior


Fri Mar 23, 2012 7:43 am
Profile
Granny Driver

Joined: Thu Oct 13, 2011 11:45 am
Posts: 26
Location: Denver Colorado
Post Re: Sunroof Slooooow
It was 50s or so. I glad to hear that it should not worry me too much. I will move on to other projects. Thanks again for the sunroof write up! :D It was so much better then flying blind.

_________________
Jay

81 Porsche 928
95.5 S6 Wagon
00 S4
72 Audi 100 LS


Fri Mar 23, 2012 7:51 am
Profile
Webmaster
User avatar

Joined: Mon Jan 07, 2008 8:43 pm
Posts: 2078
Location: Sunny San Diego
Post Re: Sunroof Slooooow
No prob, anytime. That's what these Forums are for, to share info.

_________________
1981 Porsche 928 "Euro" 4.5 Litre Auto Gunsmoke Metallic Flat - Black Interrior
1983 Porsche 928S "US" 4.7 Litre Auto Light Bronze (Copper) Metallic - Brown Interior


Fri Mar 23, 2012 7:56 am
Profile
Speed Limit Obeyer
User avatar

Joined: Mon Apr 11, 2011 4:40 pm
Posts: 57
Location: Querétaro, México.
Post Re: Sunroof Slooooow
Hi guys,
Yesterday I take my car to the electric shop to be repaird of the sunroof, It has the same problem as yours, the motor sounds as if it is working but the sunroof does not get open, I thought it was a problem with the transmission.
The system was perfect but full of dirt and mud and it does not allowd to run as it showld, but with a good clean service it runs fine.
The mecanic told me that the electric motor is in good shape, but it does not have the torque of a modern one, so that it would need a thiner lubricant (actually it does not need to much).
It work slow but fine.
My sugestion is to clean it again, deeply !.

Regards.
Jano.

_________________
There is no replacement for displacement.


Sun Mar 25, 2012 10:06 am
Profile
Granny Driver

Joined: Thu Oct 13, 2011 11:45 am
Posts: 26
Location: Denver Colorado
Post Re: Sunroof Slooooow
Thanks Jano. After it warmed up here the sunroof has started to move faster. I would say that my issue was one part low battery and one part cold weather.

_________________
Jay

81 Porsche 928
95.5 S6 Wagon
00 S4
72 Audi 100 LS


Mon Mar 26, 2012 1:58 pm
Profile
Speed Limit Obeyer
User avatar

Joined: Mon Apr 11, 2011 4:40 pm
Posts: 57
Location: Querétaro, México.
Post Re: Sunroof Slooooow
Nice, then Leo was right, it was the cold weather.
I was taking to the mecanic that perform the cleaning of my sunroof and he told me (in reference of your slow sunroof issue), that when he did mine, he changed also the line cable because it was old and burned.
Sunroof runs just fine.

here is a picture of that cleaning.


Attachments:
_Memoria del dispositivo_home_user_pictures_IMG00201-20120324-1249 (2).jpg
_Memoria del dispositivo_home_user_pictures_IMG00201-20120324-1249 (2).jpg [ 180.96 KB | Viewed 2871 times ]

_________________
There is no replacement for displacement.
Wed Mar 28, 2012 2:56 pm
Profile
Granny Driver

Joined: Thu Oct 13, 2011 11:45 am
Posts: 26
Location: Denver Colorado
Post Re: Sunroof Slooooow
I realized after cleaning that the drains were packed with stuff so I have since tired to clean out them as best as possible. I used a thick gauge wire and compressed air. I guess we will see during the next rain shower.

_________________
Jay

81 Porsche 928
95.5 S6 Wagon
00 S4
72 Audi 100 LS


Wed Apr 04, 2012 8:46 pm
Profile
Speed Limit Obeyer
User avatar

Joined: Mon Apr 11, 2011 4:40 pm
Posts: 57
Location: Querétaro, México.
Post Re: Sunroof Slooooow
My drains were like that...completely pluged !!!, I did as you are describing, but with water instead of air.
Hope both drains, yours and mine works fine next rain season.
Best regards.

Jano.

_________________
There is no replacement for displacement.


Mon Apr 09, 2012 9:57 am
Profile
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 9 posts ] 


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB © phpBB Group.
Designed by Vjacheslav Trushkin for Free Forums/DivisionCore.