[TR] TR wiper motor brush arm spring 'insulator'

[carlsereda]

Hi Gary,
the top area of a plastic spray can cap would work..
using a nail clipper and other small sharp tools you can fashion 
something quite close enough to do the job.. doesn't have to be exact 
replica in fact the little triangle with 'hot pin' hole for the spring 
hook worked fine on mine..
Ca
'63 TR4 since '74

I'm just wondering if there is a source for these or a source of
material to make one. I'm wondering if a comparable weight of plastic 
could
be used to fabricate. Has anyone had this problem before?