13 replies to this topic

[brownspeed]

is it possible to adjust the size of the swept area of the blades?

I've tried every sodding permutation of blade and wiper arm, I've had the whole assembly out and the sodding thing still wants to sweep the front scuttle and the drivers A pillar.

I'm currently running Landy hook type wiper arms with 10" blades. if I cut the wiper arm length down to about 2" it might clear (actually I bet the bastard would still find a way to hit something it shouldn't!!).

 

PS- AAARGGGH!!

[RossKnight]

I've got landy arms and I also have a very clean scuttle and a pillar haha.

 

I think they need a bend in them somewhere. Might be the wrong rack though.

[carbon]

Some of the early wiper motors had different 'sweep angles'. This is marked on the big wheel.

 

From memory these were 110, 120 and possibly 130 degrees.

[brownspeed]

unless I bend them along the length so that they are shorter I don't think it'll work. if bent to the right, more scuttle will get cleaned, if bent to the left they will catch traffic passing in opposite direction!

[Spider]

Some of the early wiper motors had different 'sweep angles'. This is marked on the big wheel.

 

From memory these were 110, 120 and possibly 130 degrees.

 

And I recall there's two spindle wheelboxes too, I think one had 22 or 24 teeth and the other 30 or 32 teeth.

[nicklouse]

As mentioned above. It is the wheel boxes that determine the sweep. It is stamped on the housing.

[brownspeed]

cheers for the responses so far folks,

why would Austin/Morris/BLMC/BL/Leyland Cars/rover etc have differing sweep angles? The holes in the scuttle look to have been a fixed position since the bronze age, the windscreen doesn't look any bigger (or smaller) either. What other variants were there to cope with? the time-space continuum?

 

OK, so lets suppose I have a 130 degree set-up;- is it possible to modify it to a lesser degree? (no pun intended). If not- where do I find a (for example) 110degree unit?

 

solved! http://www.minisport...110-degree.html

Edited by brownspeed, 14 December 2015 - 07:30 PM.

[Craig89]

Have you replaced any parts? I had this problem and it was just slop in the mechanism, i replaced the wheel boxes and rack then stipped, cleaned and greased the motor. Perfect now

[pdaykin]

From memory, the larger sweep wipers were fitted to the early (1960's) cars and were changed because they did try to clear everything from the scuttle upwards. These were a single speed, non-parking system. I doubt that you have this.

 

It is more likely that you have some wear in your wiper boxes and/or shaft. How much play is there when you move one wiper by hand ? Does the other move straight away ?

[Spider]

 The holes in the scuttle look to have been a fixed position since the bronze age,

 

Actually, no, they did have at least one different location.

 

<Edit: I'm fairly sure that the stock wiper sweep arc on later cars was 110⁰ .>

Edited by Moke Spider, 15 December 2015 - 07:21 PM.

[klivins]

I think I have a wiper motor assembly from a land rover at the moment. Very narrow angle is being sweeped on the windscreen.

[brownspeed]

From memory, the larger sweep wipers were fitted to the early (1960's) cars and were changed because they did try to clear everything from the scuttle upwards. These were a single speed, non-parking system. I doubt that you have this.

 

It is more likely that you have some wear in your wiper boxes and/or shaft. How much play is there when you move one wiper by hand ? Does the other move straight away ?

If I hold one wiper- I can move the other about 20-25mm (measured at the end of the wiper arm itself- not the blade). is this excessive?? I've no idea how much is tolerable. From the posts it seems that I've more than likely got the 110Degree drive on it -the others seem like a rarity- so is it the boxes? has anyone fitted new boxes who can measure the play they have?

I`ve removed the whole assembly and removed the grease & re-greased it all as it was previously slow operating.

[pdaykin]

I'd be interested to hear what others find on theirs, but that sounds like enough to allow the blades to foul the windscreen rubber.

If that were mine, I'd be inspecting for play at the wiper box and expecting to replace it. In fact, it is on the to do list for one of mini over Xmas

[brownspeed]

sorted (I think!)

I replaced the plastic gear wheel which engages the worm drive from the motor. cheers everyone.

PS;- it had a 110 deg gear originally fitted

Edited by brownspeed, 29 February 2016 - 07:06 PM.