The Peerless & Warwick Discussion Forum

Date: Nov 30, 2005

Window help needed

Date: Nov 30, 2005

as others will tell you i have been runnin on acrylic windows held in the open or shut positions only with the aid of a self tapper screwed into the side of said acrylic!

this is because my origanal ones have taken on the apperance of a 18th century anchor!

I have just obtained ones that work, and have promised the family that I will fit them.

I have never been able to get a good one apart.

I was told they were taxi or/and 50's rover.

anyone else know?

Date: Nov 30, 2005

Dear Nick,

We think they are from an early fifties Rover 60 or 75, they are rear window mechanism, but will probably be like hens' teeth to find ! Can't really help except to say Ian will try to pull one of ours apart to find out if he can get the bits made.

Date: Nov 30, 2005

I was told they are Rover 75 Pre P4 rear door window actuators !
However I have yet to confirm this. I have also heard that they were used on London taxi cabs but again have not actually seen them in the flesh as it were. I would try a Rover Club Website forum or registrar and let us know if you have any luck. I also have a suspicion they were used on some Jaguars as people keep telling me that's where the handle s are from !

Best I can do I'm afraid, ATB Jon

Date: Dec 1, 2005

Hi Nick,

The spring you’re talking about acts like brake shoes in a brake drum.

It’s made of square +/-3mm spring steel, and has almost 3 full windings (on a diameter of about 75mm) leaving a gap of about an inch in between the bent ends (built-in, under tension).

The end of the main reaction arm of the window-operating parallelogram is in between the bent ends of this spring, and pivots around the centre of the drum.

The weight of the window pushes the end of the reaction arm against one of the spring ends outside, against the drum in the circular housing, “braking” the window from falling down.

On top of this spring, there’s a cover with a gap, which is connected to the window-operating lever.

The gap of this cover goes around the spring ends, and when you operate the lever, one of the spring ends is pushed inside, away from the drum, neutralising the braking function.

Inside the “braking” spring, there’s a blade spiral spring, which is wound up opposite the weight of the window.

This spring acts like a weight balancer, and is adjustable.

The centre spring end, hooks into one of the slots of the centre protrusion in the drum.

The other end is hooks around a bent lip of the main reaction arm.

If this spring wasn’t there, the window would drop down, when operating the lever to open the window.

This spring also helps you to close the window with less effort.

Taking this system apart starts with loosening the thin nut, which has a shoulder.

The thread that sticks out of the nut is riveted, so try to grind some of the deformed thread away before you take off the nut. (Reassemble with Locktite)

Keep in mind that the spiral spring inside is under tension, and be careful to keep it in place to see the current adjustment, saving you time reassembling.

I’m sure there are companies who can either deliver you the square material for the spring or make you one.

I’ll send you a couple of pictures of a system I took apart this morning.

Good luck.

Erik

Date: Dec 1, 2005

Hi Erik,

Thank you very much for this detailed description. I have enough now to launch into a repair without worrying about the unit ending up as scrap. The symptoms certainly fit exactly the situation you've described. I will also post a report once the job is complete, and will take more photos as I go along, in case they are needed in future.

How is your car getting on? It's been a while since we spoke at the International - have you been able to spend much time on it since then?

Thanks again and best regards,

Nick

Date: Dec 1, 2005

Don't ya just love the FORUM !

Date: Dec 2, 2005

Callin Nick "winder" Copeland

Come on "winder" get that production line goin, were all waitin here