On 24-Nov-2006, "Nick /////" <nicknewsX RemoveThis @Xnick-bailey.co.uk> wrote:
> >The windshilds sometimes fail, it seems
> > like a relay problem. I don't know . Can someone help me with this.
The wipers in most Fiats have sliprings on the big gear
that is driven by a worm gear on the motor shaft.
The gearbox lubricant seems to be black molydenum
grease, the sliding contacts have to make electrical
contact for it to work, but the sliding action seems to
filter out the molybdenum (disulphide) so it builds
up and finally lifts the contact off the slip ring.
Result no wipers, but it generally starts working again,
for a short while, after the car has been parked overnight.
I clean the sliprings and re-lubricate with petrolium
jelly or plain lithium grease.
This seems to cure the problem.
With the wiper gearbox exposed you can usefully
-SLIGHTLY- increse the wiping contact pressure,
bending the blade slightly is better than trying to
increse the sharp creased bend, less chance of
breaking the blades.
Obviously too much pressure greater wear.
Problem seems to occur after 2-3 years, but obviously
depends on mileage and climate.
>> Stay informed about: Lot of problems with Tempra 1.9 TD