Replacing rear wiper arm

Discussion in 'Gen 2 Prius Technical Discussion' started by Josh Lyman, May 8, 2019.

  1. Josh Lyman

    Josh Lyman Junior Member

    Joined:
    Jul 20, 2017
    36
    2
    0
    Location:
    Washington, D.C.
    Vehicle:
    2008 Prius
    Model:
    N/A
    I've searched the forums and I'm not sure this particular question has been answered. I bought another 2008 Prius to replace my previous one that was rear-ended and totaled, and the "new" Prius had a missing rear wiper arm. No problem I thought, I'll just buy a replacement from Amazon.

    1) The problem is that after I remove the nut, I'm having trouble removing the plastic piece. It seems like it's attached to a rubber gasket underneath that stretches each time I pull on it.
    arm.jpg

    2) The replacement arm I bought has a rounded center and I was under the impression there were teeth involved.
    wiper.jpg
     
    #1 Josh Lyman, May 8, 2019
  2. Brandon.S

    Brandon.S New Member

    Joined:
    Dec 20, 2018
    4
    4
    0
    Location:
    CT
    Vehicle:
    2005 Prius
    Model:
    N/A
    Went through this not too long ago. I believe I just pulled up on the plastic part and gently tapped the threaded portion with a brass hammer (preferably with the nut on but loose, so you're hitting the nut rather than the stud).

    There is a spline on the wiper arm shaft that will dig into that soft metal when you tighten the nut.
     
    #2 Brandon.S, May 12, 2019
  3. R-P

    R-P Active Member

    Joined:
    Dec 6, 2011
    730
    227
    0
    Location:
    Netherlands
    Vehicle:
    2009 Prius
    Model:
    II
    If it is anything like my Volvo, the arm is aluminium and the rest iron. So it will eat into eachother and 'rot' or 'oxidise' solid. Horrendous to get loose and since you're working near the glass window, incredibly delicate work. (General info, I'm not sure the OP will have this problem).

    I tapped it with a pin (the white stuff that forms between the aluminium and the iron/steel), sprayed it with WD40, wiggled it numerous times, etc. and eventually it came loose.
     
    #3 R-P, May 19, 2019
  4. Samuraidog

    Samuraidog New Member

    Joined:
    Oct 27, 2019
    11
    2
    0
    Location:
    Detroit, MI
    Vehicle:
    2009 Prius
    Model:
    N/A
    Anyone have any idea of the tightening torque spec for the nut after this rear wiper arm is replaced?
     
    #4 Samuraidog, Aug 20, 2020
  5. dolj

    dolj Senior Member

    Joined:
    May 14, 2012
    5,138
    2,770
    0
    Location:
    Wellington, New Zealand
    Vehicle:
    2007 Prius
    Model:
    N/A
    The repair manual stipulates Torque: 49 in.*lbf (5.5 N*m, 56 kgf*cm)

    Rear Wiper Torque.png
     
    #5 dolj, Aug 21, 2020
(You must log in or sign up to post here.)
Loading...
Similar Threads - Replacing rear wiper
  1. Meadow

    Replace whole rear left door

    Meadow, Jan 30, 2020, in forum: Gen 2 Prius Technical Discussion
    Replies:
    9
    Views:
    1,050
    Meadow
    Feb 2, 2020
  2. harryarcos

    Replacing rear brake pads

    harryarcos, Jun 10, 2018, in forum: Gen 2 Prius Technical Discussion
    Replies:
    4
    Views:
    1,502
    harryarcos
    Jun 11, 2018
  3. alexeft

    Replace rear lights

    alexeft, Apr 27, 2018, in forum: Gen 2 Prius Technical Discussion
    Replies:
    0
    Views:
    873
    alexeft
    Apr 27, 2018
  4. Wiyosaya

    Rear license plate bolt replacement

    Wiyosaya, Mar 20, 2017, in forum: Gen 2 Prius Technical Discussion
    Replies:
    5
    Views:
    7,110
    Wiyosaya
    Oct 2, 2017
  5. culp

    Front and Rear Brake Pad and Disk Replacement

    culp, Apr 20, 2009, in forum: Gen 2 Prius Technical Discussion
    Replies:
    56
    Views:
    40,740
    Patrick Wong
    Oct 20, 2018