Preparing the Mighty Boy - Windscreen wiper linkage arms upgrade - Page 2
The following information assumes you have access to a small lathe and equipment to silver solder...
Old linkage (top) - New linkage (bottom)
Four 6mm S/S (6mm x 25 - 316 grade) nuts and bolts used....
A - heads of bolts turned down to reduce height
B - nuts "stepped" to insert into old brackets
C - top spacer
D - bottom spacer
Stepped nuts silver solder into old brackets (holes drilled to suit)
How they are assembled....
A - bolt
B - top spacer
C - bottom spacer
D - captive nut
And you end up with this.....
Small top and bottom spacers allow the arms to swing without binding on brackets
It is recommended to use a thread locking product (Loctite or equivalent) on all threads
This is another area that causes a problem....
Over time water gets trapped in here and the joint becomes tight, this causes the wiper motors to work a lot harder and eventually fail or blow the fuse.
These can easily be taken apart by removing the small ring clip, cleaned up and regreased
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