Front wiper arm travel
Hi all
I fitted new wiper blades to our 75 today, as the drivers side blade was smearing badly. I obtained a set of Bosch arms, of the correct specification, and complete with spoiler on the drivers side. However during fitting I noticed that each blade was approximately 5 to 10 mm longer than the old ones. After fitting I then tested the wipers, and lo and behold the drivers side wiper was contacting the windsreen surround, when it reached the end of its travel, in the vertical position. This I initially assumed to be due to the increased length of the new blades, but upon closer inspection, just below the point on the screen surround where the new blade is making contact, where two nicks in the rubber/plastic, where the OLD blades had previously been making contact. When in the park position, the wipers are perfectly parallel with the base of the windscreen, and so are not obviously out of alignment. I was going to remove the arm, and try to refit it in a slightly lower position, to try and prevent the wiper contacting the screen surround, but having removed the nut cover for the wiper arm, I could see no obvious spline or keyway. So to the questions Has anyone else had/ or has a problem with the wipers contacting the windscreen surround when in the vertical position? How is the wiper arm located on the wiper hub, is it a spline or a keyway? Is there any form of travel adjustment in the system, to reduce the length of the wiper sweep (arc)? I have looked at my w/shop manual CD, and the section on the wiper system is very poor. Anyone got any thoughts?:confused: Andy |
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/Erik |
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Andy |
The conical washer under the nut is splined so you have lots of scope for adjustment
The wipers on all three of my cars just touch the screen surround but only just,no marks, I think the arm at rest may look a bit odd if adjusted too low to avoid them hitting If you havent taken the arms off before how do you check you plenum drain? |
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There is no necessity to remove wiper arms to check plenum drains, just the three scuttle clips. It is in fact only necessary to remove 2 scuttle clips but the third tends to release itself. |
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I have now removed one wiper arm, the drivers side, and have managed to refit it slightly lower, so that the blade no longer contacts the screen surround - mostly! There is no contact with the wipers on intermittent speeds, or speed one, but if I put them on full blast, there is a small amount of contact. Although I do not think there is now enough contact to mark the screen surround, so job done!:lol: Andy |
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