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Aug 24th, 2023
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Joined: May 2009
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L - Learner Plates On
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OP
L - Learner Plates On
Joined: May 2009
Posts: 232 Likes: 2 |
Ive owned a Classic Morgan for 30 years, my present one is a 1999 Plus 8 - owned from new . Ive never managed to get the windscreen wipers to stop juddering !
Any suggestions?
Ta
1999 Morgan Plus 8. 3.9 ....
1961 Alvis TD21 Series1 3 Litre Auto....
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Joined: Aug 2011
Posts: 70
Just Getting Started
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Just Getting Started
Joined: Aug 2011
Posts: 70 |
Don't drive in the rain, or better still, come to the land downunder-what's rain??  Have you tried a water dispersing solution on the screen-RainX for example. Ross
Ross
1975 Plus 8 R7876 (sold)
1990 Plus 4 4 Seater M7938(sold)
2012 Plus 4
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Joined: Apr 2014
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Talk Morgan Addict
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Talk Morgan Addict
Joined: Apr 2014
Posts: 3,547 Likes: 4 |
Simply down to friction either through dirty glass or to clean glass allowing rubber to catch on the glass.
Added lubrication helps or a different construction of blade material such as silicone instead of natural rubber would help.
Mark - No Longer driving Archie the Old English Sheep Mog........... 2010 Roadster 3.0 V6 (S3) 
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Joined: Jun 2015
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Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Jun 2015
Posts: 1,952 Likes: 41 |
How old are your wiper blades? We often ignore them until they start to fall apart but ageing of the rubber causes it to harden(just like tyres). Perhaps we should be changing them every couple of years or so?
Doug
2011 Plus 4 in Rich Maroon
1972 750 “ComDom” sprinter
1958 Triton 650
1992 Triumph Trophy 900
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Joined: May 2009
Posts: 232 Likes: 2
L - Learner Plates On
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OP
L - Learner Plates On
Joined: May 2009
Posts: 232 Likes: 2 |
I should have mentioned , I think it's to do with the individual blade angle to the screen and how it changes as the wiper moves through its arc.
1999 Morgan Plus 8. 3.9 ....
1961 Alvis TD21 Series1 3 Litre Auto....
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Joined: Jan 2011
Posts: 5,366 Likes: 15
Charter Member
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Charter Member
Joined: Jan 2011
Posts: 5,366 Likes: 15 |
smudger1,
They are only there for show and to get you through the mot.
Here for a good time not a long time!!
Reg
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Joined: Sep 2011
Posts: 14,723 Likes: 149
Member of the Inner Circle
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Member of the Inner Circle
Joined: Sep 2011
Posts: 14,723 Likes: 149 |
The juddering is caused by the blades not being at the correct angle to the glass. The rubber must flip at the end of each stroke so that it is being stroked back on the glass, just like a window squeegee. If the blad does not flip it judders.
The solution.
Turn off the ignition whilst the wipers are in motion to stop the blades in mid stroke.
Remove the wiper blades.
Observe the angle of the flat of the end of the wiper arm in relation to the screen.
Using two pairs of pliers, and protecting the arm with some pieces of leather, twist the end of the arm so that the flat at the end, even though angled away from the glass, is as near as possible parallel to the glass.
Refit the blades and check that in mid stroke, when lifted slightly away from the glass, they are at 90° to the glass.
Test with some water on the screen and adjust again if necessary.
Good replacement blades can be contructed from Bosch or other quality wiper blades. There are a couple of threads on this topic.
Peter ![[Linked Image]](http://bradley.it/public_images/drive.jpg)
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Joined: Dec 2013
Posts: 1,075 Likes: 1
Has a lot to Say!
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Has a lot to Say!
Joined: Dec 2013
Posts: 1,075 Likes: 1 |
Try cleaning your windscreen with 0000 grade steel wool. It's amazing what come off - it does not scratch the glass. Clean the wiper blade rubbers with the steel wool as well. Apply RainX to the glass, or there is a solution of it to put in the washer reservoir bottle.
John
Silver 2005 S1 Roadster V6 - Henrietta
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Joined: Dec 2009
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Tricky Dicky Member of the Inner Circle
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Tricky Dicky Member of the Inner Circle
Joined: Dec 2009
Posts: 35,777 Likes: 468 |
When I had my 4/4 Sport from new the wipers did the same thing, I spent quite a bit of time ensuring the blades were flat onto the screen and that got rid of the juddering and produced a cleanish wipe for a Morgan.
2009 4/4 Henrietta
1999 Indigo Blue +8
2009 4/4 Sport Green prev
1993 Connaught Green +8 prev
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Joined: Sep 2011
Posts: 14,723 Likes: 149
Member of the Inner Circle
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Member of the Inner Circle
Joined: Sep 2011
Posts: 14,723 Likes: 149 |
Here is the description of Robbie's mod followed by mine. Right Folks,
This is the description of the "manufacturing" of replacement wipers: Photos attached.
Buy 2 Bosch 21in Superplus wiper blades - as per the photo attached "Donor Blade" - you need 2 as there are just 2 parts required on a blade and you need 3!!!!
Remove the actual blade from the wiper as per "wiper Disassembled"
Seperate the two smaller parts that grip the blade as per "Part required"
Now -- the tricky bit --carefully open out the centre of the part required so as both sides are parallel and then CAREFULLY drill the middle of the part so as to accept a 2.5mm bolt.
Take the original Morgan wiper blade - "original blade" and punch out the rivet holding the blade clip onto the actual blade so you now have the part that clips the wiper blade onto the wiper arm on the car. Drill out the pivot hole to accept the 2.5mm bolt
now bolt the original clip onto the new "part required" and use a small lock washer under the nut and "Locktite" the nut to the bolt , tight enough to still allow the part pivot.
Cut the new wiper blade rubber to length -- I got 3 new blades from the one donor there is a metal part in the middle of the blade so you need a sharp hacksaw!
you then slide the blade into the holder and crimp ONE of the ends of the holder(part required) -- JOB FINISHED
See the photo "Finished Wipers" in my next post(only allowed 5 files with each post!!) for the car with the wipers fitted. They really are an improvement on the originals
Cheers! Inspired by Robbie's work I went out and purchased 1 blade, similar to the Bosch but I got the longest I could, 65cm, and that gives me enough for 3 Morgan blades. As it turns out the little supports were held with rivets. The Bosch seems to use some sort of clip. I carefully punched out the rivet with small jeweller's screwdriver, then carefully tapped the expanded end back to round with a small hammer so that it would go back in the hole. The support had been slightly crushed at that point so it had to be "adjusted". I then removed the clip rivet from an old Morgan wiper using a Dremel tool and then opened the holes slightly to take the saved rivet from the donor blade. I fitted it all up and then peened the end of the rivet, and slightly squeezed the grips. The steel strips can be removed from this blade and re-inserted in the grooves. I used a very good wire cutter to start the cut and then when I flexed the very hard spring steel, whilst gripped in the wire cutter, they just snapped at the desired point. After I fitted it to the car I adjusted the position by moving the blade in the grips so that it just cleared the bottom of the windscreen frame at the end of the wipe. Here is the result before I fitted it to the car. Robbie's original post with photos is here
Peter
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