Am I going nuts?

Help! My wiper motor when first switched on drives the wiper on the motor itself downwards first instead of upwards! The motor is going the right way according to the directional arrow on it and i cannot see how to get the linkage to fit the other way as it binds on the motor body.
Has anybody got photos of this set up.......or am i doing something really stupid? (not unknown)
Regards G P
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Something is reversed; the mechanical linkage, electrical power or the reversing mechanism.

There are two electrical connectors to the Dino wiper system; one to power the wiper motor and another to the sensor in the action cam. The purpose of the action cam is to sense and permit direction and upon hitting the limit then return the wiper arms in the opposite direction. I am deducing that since the action is reversed then you may have the opposite limits swapped.

BTW, since you have it off the car I'll bet you got into this situation by cleaning and lubing the action cam. If not remove the four slot screws that hold the cap on and examine the grease in there. Original Ferrari grease will have caked to a yellow substance akin to parafin wax. This is not good, remove and replace it with modern grease.

PS - Does anyone else notice that the first position "down" on their wiper stalk is the faster of the two speed settings?
i.e. moving the stalk to the second position downwards sets the wipers at a slower speed?

THX - Much appreciated

 

There are two electrical connectors to the Dino wiper system; one to power the wiper motor and another to the sensor in the action cam. The purpose of the action cam is to sense and permit direction and upon hitting the limit then return the wiper arms in the opposite direction. I am deducing that since the action is reversed then you may have the opposite limits swapped.

Scott the motor turns the actuator arm in one direction only. it does not reverse as such and only the cams do this. I have tried moving the cap containing the limit switch in it which i presumed was the switch that came into play when you turn the wipers off ie the park facility to stop the motor in the correct resting place every time.

BTW, since you have it off the car I'll bet you got into this situation by cleaning and lubing the action cam. If not remove the four slot screws that hold the cap on and examine the grease in there. Original Ferrari grease will have caked to a yellow substance akin to parafin wax. This is not good, remove and replace it with modern grease.

Yes i have replaced the " toffee" which was in there!

PS - Does anyone else notice that the first position "down" on their wiper stalk is the faster of the two speed settings?
i.e. moving the stalk to the second position downwards sets the wipers at a slower speed?

THX - Much appreciated[/QUOTE]

Mine works as should ie pos 1 is slow speed
Regards, Graham.

 

Graham - a bit more information will help. I assume, from the picture, that you have the early style clapper blades. I also assume that you have a cable running from the motor to the other regulating mechanism. As your car is a right-hand drive, I cannot assume that the mechanism is as we see in the civilized world, but if it is, I have a few suggestions.

First, did you take the motor and its drive mechanism apart to clean? If so, it is possible that your reversed the drive arm...that is, it should be rearranged to look like a mirror image of what it currently is.

Second, when testing everything, leave the cable disconnected. Work with the motor-side blade only. If, however, it is the cable-side mechanism that is not working correctly, then your problem is easily solved. The cable-side mechanism has likely rotated to allow the drive arms to flip to the mirror image.

I will stop here as I am making a number of assumptions. Please confirm whether your car is a right or left hand drive, whether the wiper motor is on the right or left, and whether you have the clapper style. By the way, should your car be a clapper style, the real fun has not yet begun. It is very difficult to time the blades such that they do not kiss in the middle. More to come.

Thanks.

Jim S.

 

Here is a photo of mine, non clapping wiper blades.

BTW, I was eating this lovely hamburger meal and they gave me this wonderful tray so I just decided to take the wiper motor out on the spot. Wiper motor and tray returned promptly after the delightful meal.



PS - I just thought about you residing in the UK - is the mounting still on the Left side of the car? Left when sitting in the car facing forward.
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Thanks Guys, Sorry it's Right hand drive, clapper style and yes when i sit in drivers seat motor is on left of me and cable driven blade in front of me.
The twist to the tale is that at first i had them tuned perfectly and noticed that they wouldnt park, so i got to work on the switch and to my horror they then parked bolt upright! AAAARGH.
So i discovered that the linkage was wrong on the cable side and altered that fine.......BUT now when the driven/motor side starts it does so with a DOWNWARD sweep first!!!
I wonder if i have to 'tune' the driven side arm to alter this? I am sure i have fiddled with this already, or have i? as i said i am going nuts.
It does appear to be the same as Scott's.........or does it?
Graham

 

Have you tried without the blades on turn the wiper switch on,then the ignition and turn the ignition switch off when the two shafts ( that the wiper arms fit onto)are at their lowest point before they start to go up the screen fit blades at this point.

 

Now this is insightful.
If I read it correctly, Possum suggests it is just a simple misalignment of the wiper arms on their shafts. Remove the wiper arms from the spindle that protrude above the bodywork. Turn the wipers on to cycle it through a few strokes and turn it off to establish the return position on the spindles. Install the wiper arms and tighten.

 

Right. I got there in the end, it's easy to get things 180 degrees out and get a downward starting stroke and an upward parking stroke!.
Anyhow the chinese puzzle is solved.

However one thing i did note is that if you get the cable driven side mechanism/arm 180 degrees out it will still work BUT the stroke is larger and the two blades can only be syncronised by having a larger gap between the two at rest/park or they clash.

I know that for some of you it may be like teaching you to suck eggs but for anybody whom has never taken all this assembly apart it can be daunting to say the least!

The problem with the right hand drive variants is that the sweep of the blades give a better clearance to the passenger side(fine on the LHD cars) and not a complete sweep to the drivers side.

I attached two photos, one to show how the cable driven side should appear from the front with the wipers at rest and one to show the finished position of the blades at rest/parked
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The wipers on my RHD "clapper" don't park either, but after reading this I think I'll just live with it.

 

My clapper wipers park ok but there is no apparent difference between position 1 and 2. However with Rainex I don't need either!