Reply
 
Thread Tools Display Modes
  #1  
Old 05-10-2026, 05:23 PM
Scarebird's Avatar
Scarebird Scarebird is offline
Ultimate Warrior
 
Join Date: Nov 2002
Location: Moita, Portugal
Posts: 5,386
Default Wiper/hood interference issue

This was an issue with my 71 but may also exist with 1968's and 69's.

Ran into an issue this morning with the 71. A rain squall came up fast, the wiper was engaged: it seemed to struggle initally to come up but only went up 20° and stopped dead. Would not retract or function further.

Once I returned home I examined it. The 15 amp fuse was blown and replaced. Power was applied and the wiper functioned correctly (it uses a delay motor) but when shut off it only went down most of the way. I noted that the wiper blade was contacting the bottom edge of the hood. I know most GM A's the hood kinda sits high in the back if the hinges are worn. These hinges are rebuilt and when closing the hood I push back then down to help it along.

The wiper blades are bought from a local store here; NorAuto. But as you can see they sit considerable higher than the factory pieces. I will try tomorrow to remove some of the main 'arch" from these then find out if it is enough to clear the lower edge of the hood.



If not, I will need to order OEM style replacements from Ames as the are far lower in profile. Other than cost, the only issue to me with them is possible squeegee efficiency vs. the replacement units on the Lemans now.



Will update.

  #2  
Old 05-11-2026, 03:07 PM
grivera's Avatar
grivera grivera is offline
Ultimate Warrior
 
Join Date: Feb 2005
Location: Just south of Baltimore
Posts: 5,871
Default

I would buy the repro's you pictured. Another way to resolve it is removing the wiper arms and repositioning them so the park position puts the wiper blades above the point where they get stuck - a keen eye will notice they are positioned incorrectly.

__________________
Will Rivera

'69 Firebird, 400/461, 290 Eddy D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears
'69 LeMans Vert, XS 350, #47 heads, TH400, 10 Bolt 3.23 gears, work in progress
‘66 Lemans, 455, 310 KRE D-Ports, HR 236/245, TH400, GV OD, 12 bolt 3.73 gears - see it here:
https://youtu.be/RP_s1wJKm_Y?si=K0NZxoTyaGcj8Dcb
  #3  
Old 05-11-2026, 04:37 PM
Scarebird's Avatar
Scarebird Scarebird is offline
Ultimate Warrior
 
Join Date: Nov 2002
Location: Moita, Portugal
Posts: 5,386
Default

I updated in the 70-72 section: I simply bent the wiper main frame to fit, gaining a 1/4 inch lower clearance.

I weighed the thought of the stock pieces, but refills are expensive and hard to get in the States; impossible here.

Quote:
Originally Posted by grivera View Post
...Another way to resolve it is removing the wiper arms and repositioning them so the park position puts the wiper blades above the point where they get stuck - a keen eye will notice they are positioned incorrectly.
They are rare but non-park wiper setups do just that.

Attached Thumbnails
Click image for larger version

Name:	blades.jpg
Views:	34
Size:	80.5 KB
ID:	669923  


Last edited by Scarebird; 05-11-2026 at 04:45 PM.
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 02:41 PM.

 

About Us

The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.

 




Copyright © 2017