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Aug 19, 2010 10:01 am
Peter S30 Offline
Global Moderator
Registered since: Nov 27, 2007
Location: Germany


Subject: windscreen wiper system lubrication
I am looking for advice how to service and especially lubricate the windscreen wiper system on V12s and probably many equally built systems. My wipers are working but there seems to be much friction in the system. The mechanism is well hidden above the dashboard. I dont find a greasing point on the operating cable. Also a photo or drawing of the principle would be nice, maybe somebody has dismantled it once.
This post has been edited 1 times. Last edit on Aug 19, 2010 10:02 am by Peter Schirg.  

Aug 23, 2010 7:52 am
Peter S30 Offline
Global Moderator
Registered since: Nov 27, 2007
Location: Germany


Subject: Re: windscreen wiper system lubrication
This weekend I removed the wiper motor (see image) and opened the small lid on the front (2 foremost screws) this gives acces to the internal gear. I removed the old grease and put new in. This already did half the job. The rest of the drive seems quite unaccessible, so I left it for now.
But I am still interested if sombody has an image or drawing of the hidden part.

Thumbnails of attached images:

Filename: Wipermotorkl.JPG
Filetype: File Type Information for: jpg jpg
Downloads: 313
Filesize: 82.70 KB
Image size: 500 x 752 Pixels

This post has been edited 1 times. Last edit on Aug 23, 2010 7:53 am by Peter Schirg.  

Aug 25, 2010 9:37 pm
h14 Offline
Member
Registered since: Nov 30, 2008
Location: Chalandray, France


Subject: Re: windscreen wiper system lubrication
Hi Peter,
The drive to he wiper arms is via a flexible cable...similar in fact to the rev counter & speedo drive. To access this, you simply need to remove the dasboard cappings, having removed the wiper knobs (I need one of these!), & all should be revealed. If the inner cable can be pulled through, pull it out, clean it, grease it & put it back. If not, tie it up & dribble oil down the side of the inner drive cable, rotating it at the same time, until you see oil drip from the other end. Most friction will be in this cable, as you can guarantee it is probably dry, or any grease in there has gone hard.
Incidentally, the "Berkshire" wiper motor is fairly easy to dismantle, to clean & lubricate it properly. Be very careful with the metal housing castings...it is made from the same rubbish metal ("Mazak") that pre-war Dinky Toys are made of, so it has a propensity to crack.
 

Sep 07, 2010 9:08 pm
Peter S30 Offline
Global Moderator
Registered since: Nov 27, 2007
Location: Germany


Subject: Re: windscreen wiper system lubrication
Hi Laurence,
thank you, with your mail and having a look again It seems easy. I will report and put an image here when done.
 

Sep 10, 2010 9:21 am
Peter S30 Offline
Global Moderator
Registered since: Nov 27, 2007
Location: Germany


Subject: Re: windscreen wiper system lubrication
So yesterday evening I opened the system:

I removed the two wooden cappings. Then you can see the whole system: from the left side the speedo like drive comes into the left gear. Inside the continuous rotation (in only one direction) is transformed into the back and forth movement of the wipers by the internal gears: a worm gear to a big cogwheel moving a toothed rack. This is connected to the right side drive with just one internal cogwheel (sorry for my limitation in correct wording for all these gear parts).

The right side gear front plate can be opened by just removing 4 screws. It was very old hard grease inside, which I replaced by new.

The left side gear has to be removed from the car (2 screws) to be opened from the back side. Here grease looked better but I also cleaned and put new in.

The tacho like inner cable could not be removed easily so I have bent the cable upwards and trickled oil in.

I have put all back and it works again a bit faster. But the most important was the first gear in the wiper motor because this is rotating fastest.

Thumbnails of attached images:

Filename: left-wiper-gear.jpg
Filetype: File Type Information for: jpg jpg
Downloads: 300
Filesize: 146.44 KB
Image size: 800 x 595 Pixels

Filename: right-wiper-gear.jpg
Filetype: File Type Information for: jpg jpg
Downloads: 299
Filesize: 95.62 KB
Image size: 800 x 559 Pixels

Filename: left-wiper-gear-back1.JPG
Filetype: File Type Information for: jpg jpg
Downloads: 298
Filesize: 133.50 KB
Image size: 800 x 531 Pixels

Filename: left-wiper-gear-back2.JPG
Filetype: File Type Information for: jpg jpg
Downloads: 300
Filesize: 125.97 KB
Image size: 800 x 531 Pixels

Filename: left-wiper-gear-front.JPG
Filetype: File Type Information for: jpg jpg
Downloads: 291
Filesize: 69.40 KB
Image size: 800 x 531 Pixels

 

Sep 11, 2010 6:46 pm
Ted Overy Offline
Member
Registered since: Sep 11, 2010
Location: -


Subject: Re: windscreen wiper system lubrication
Help! Does anyone know a source of Bowden cable inners for the wiper motor, or someone who can replace the inner of the cable?
 

Sep 12, 2010 12:33 pm
tonythecat Offline
Member
Registered since: Aug 16, 2010
Location: Tynemouth England


Subject: Re: windscreen wiper system lubrication
Try these people, they MAY help, seem to be experts in all types of cable.

Tony

http://www.speedograph-richfield.com/
 

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