La différence entre vitesse lente et vitesse rapide (je dirais "moins lente") n'est pas très visible. Le mécanisme est sans doute grippé et nécessite d'être nettoyé et graissé.
L'intermittent est effectivement une option. Cela dépends des années. Il faut ajouter un relais spécial. Concernant la commande au volant, il y a une butée qu'il faut casser pour permettre au levier d'avoir les trois positions. Les positions sont de haut en bas
- Rapide
- Lent
- Arret
-Intermittent
Tu peux acheter un kit proposé par Jef Bowlsby sur ce site http://bowlsby.net/914/WiringHarnesses/ ... (wiper deay harness)
Tu peux regarder ce post
http://www.old-droppers.com/index.php?showtopic=34600
Et celui-ci
http://www.914world.com/bbs2/index.php?showtopic=110600&st=0&p=1364701&#entry1364701
Voici ce que dit Bownlsby à propos du relais et du câblage
The Factory Manual calls it a 'wiper interval relay-(optional)', on both the 1972 and 1973 model year schematics. In 1974 they issued a separate 'Additional wiper interval' schematic, dated 1973. There is no similar diagram for the 75 model years and the factory manual does not cover the 1976 model year. I havent studied the schemantics in any detail to see if there are other differences, which I need to do.
I dont know how the wiper interval relay works internally Fiid...but why reinvent the wheel? Its only a paltry $65 for the real deal...
The factory manual has a diagram and instructions for the conversion, dated 1973, at page 4.4-6/1. To me that means the 74 cars would be capable of a direct swap in retrofit. It maybe possible to retrofit a new switch and wiring into an early car, but I dunno...
The relay can be had from PP or apparently anyone with access to Bosch. PN 111 955 531 is apparently the originally specified relay. It has been superceded by PN 477 955 531 according to Darren at PP. He quoted me a price of ~$57. +tax/shipping. The relay has some microelectronics in it...capacitors and a chip I think, not just a typical on-off electromagnet type relay. If I do these harnesses, I'll just do the harness and let you get your own relay....I have no interest in inventorying something you can easily get on your own.
The wiper delay/relay is not an appearacnce group item, it was simply an option...like the rear window defroster.
The harness I have seen only has four wires - Brown, Green/white, Red and Blue/Black. Andy described his install as having 5 wires, which corresponds to the 1974 'Additional wiper interval' schematic, in fact it corresponds to each of the 72-74 schematics. The additional brown/black wire comes out of the main body wiring harness and is attached to the S pole of the relay, which goes to the switch.
In either case the wiper lever arm/switch and/or the steering column housing needs to be modified (a tab removed) so that the multi-positions can be achieved.
