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MG MGB Technical - Wiper System

I just renewed the wiper wheelboxes on my '73 'BGT.

First a warning regarding Moss racks: I got a new Moss cable rack replacement and found that the hole in the cable "head" was too small to accomadate the pin of the wiper motor assembly. I drilled the hole and then found that the "head" of the cable was too big for the "slider track" in the wiper motor assembly. I wound up using an old rack.

I found upon disassembling the motor that the gear was marked 105 degrees. My understanding is that the GT requires a 115 degree. Can anyone speak to this?

Parking: My wipers park on the drivers side. I noticed in the "Original MG" Book that every car shown had wipers that parked on the passenger side. This would seem to make sense on a left hand drive car as it would get the wipers out of the driver's field of vision. Where do your wipers park?

Regards,
Steve Lipofsky
Basketballphoto.com
Steve Lipofsky

Steve,

In "Original MG" every car has the wipers on the drivers side. They're mostly RHD cars. Your wipers are correct. They park on the driver's side wherever the driver sits. Thats all I know about that.

Paul
Paul Hanley

Paul,

Sorry, I was speaking American. I should have said that all the cars in the "Original" book had wipers parking on the right hand side as you sit in the car.

After your post, I rechecked the book and it seemed all the cars are RHD.

Steve
Steve Lipofsky

Steve,

The only reason I knew this one for sure is that after complete dissasembly of my car for restoration, I too glanced at the cover of Original and put them on backwards. The results were disasterous!! The wiper arms scratched the paint as they rotated accross the front scuttle!! Lesson here--never drink beer while working on your car.

Paul
Paul Hanley

As far as I know, the GT should have a 125 degree gear wheel in the wiper gearbox. The 105 is for the roadster.

Mike
Mike Howlett

Just curious: was there any identifying tag indecating where the stuff was made?
glg

Thanks, Mike.

GLG,
No, there was no country of origin on the label, which, I believe is required by law. When I order parts these days, I always specify British parts when possible.
Steve Lipofsky

Steve: My 68 GT wipers park on the drivers side. I have a spare 71 GT wiper motor assembly. I'll try to dig it out tomorrow and see what degree gearwheel it has and post my findings here. Clifton
Clifton Gordon

Even the (four?) LHD cars in Clausager park on the right, which seems to go against what several owners of LHD cars say. POs of these may have changed things to park on the left as that clears the whole of the bottom of the screen and doesn't leave a wedge in front of the driver. Page 101 of Clausager states that originally the roadster had a 106 degree wipe and 10 1/4" arms and 10" blades, and the GT had 115 degrees of wipe, 12" arms and 11" blades, then 13" blades then 12" blades! From MkII production in 67 he says that both roadster and GT had the same 14W two-speed motor. AFAIK the GT always had the round two-speed motor with the later parking circuitry, whereas the roadster had the square motor first with one speed then two but with different parking circuitry, standardising with the GT motor in 67, but whether this means the same arc I don't know. My 73 CB roadster and 75 RB GT have different wheelbox mounting positions, length of arms and blades. I seem to remember 'borrowing' the roadster motor for my daily driver GT at one time and being aware of the narrower sweep, but can't be certain. Changing the park is relatively easy, just take the arms off, reverse the kink, and refit on the other side.
Paul Hunt

Steve; My spare GT wiper motor has a 125 degree gear wheel. Clifton
Clifton Gordon

Tilt!
Paul Hunt

Paul,

What do you mean by "take the arms off, reverse the kink, and refit on the other side"?

John Campbell ((207) 583-6033), who has an extensive collection of used 'B parts is sending me a GT gear. If you call him, please tell him Steve sent you.

When it arrives, I'll post the degree marking. I'm assuming that it'll be 121 1/2!

Regards,
Steve Lipofsky
Steve Lipofsky

I also have a wiper motor I removed from a 70 midget a few years back. It has a 105 degree gearwheel. FWIW, Clifton
Clifton Gordon

Steve - early chrome arms *might* have been straight i.e. the blade was parallel to the arm but most have a kink at the end where the blade fastens so that although the arm crosses the bottom of the screen at an angle the blade lies flat along it. i.e. when parked the blade is parallel to the bottom of the screen and not the arm.
Paul Hunt

This thread was discussed between 30/10/2003 and 01/11/2003

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