1970 wiper door will not open
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From: delta ohio
1970 wiper door will not open
hey my wiper door will not open fast it getting hong up on the wipers .. you have to pull up on the center of the wiper door ,,, wipers and all the other stuff work ,,, is there a thing that pops the door up or what
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From: Austin Texas
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first off we assume your car and vacuum system are in proper working condition..
yes a vacuum actuator opens and closes the wiper door,
that actuator is controlled by a pilot vacuum valve, it your door is slow/weak,
either the actuator is worn out, or the most likely cause is binding from the door,
and pivot/bearings and 40 years worth of crud. with the actuator dissconnected,
you should be able to move the wiper door by hand, find the actuator,
on the passanger side on the firewall.
if not working smoothly,
Dissassemble clean and lube all pivot points for the door assemble,
when everything is working good that door pops open and close real quick.
yes a vacuum actuator opens and closes the wiper door,
that actuator is controlled by a pilot vacuum valve, it your door is slow/weak,
either the actuator is worn out, or the most likely cause is binding from the door,
and pivot/bearings and 40 years worth of crud. with the actuator dissconnected,
you should be able to move the wiper door by hand, find the actuator,
on the passanger side on the firewall.
if not working smoothly,
Dissassemble clean and lube all pivot points for the door assemble,
when everything is working good that door pops open and close real quick.
Team Owner
Joined: Sep 2006
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From: Westminster Maryland
Hi sb,
Are your wipers starting before the wiper door has a chance to open completely?
There is a safety switch assembly just to the right of the distributor mounted on the fire wall. It's purpose is to delay the electrical signal to the wiper motor until the wiper door is completely open.
Perhaps your switch may need some adjustment.
Regards,
Alan
Please ignore the oval, it was for another post.
Are your wipers starting before the wiper door has a chance to open completely?
There is a safety switch assembly just to the right of the distributor mounted on the fire wall. It's purpose is to delay the electrical signal to the wiper motor until the wiper door is completely open.
Perhaps your switch may need some adjustment.
Regards,
Alan
Please ignore the oval, it was for another post.
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From: delta ohio
well i will work on them this weekend i do have the door working good by hand ,, the car has never been apart the door will close right ,, just will not open right ... like it is slow to open i orded a new vacuum actuator and relay ,,, just so it had a new ones on it .. i want them to work ,,, just like the car was new,,,, not stopping intell there right ,, think thats one of the coolest thing on the car and i love the bumpers i think there the real corvette of the corvette ...
Team Owner
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From: Westminster Maryland
Hi S,
I also replied in your other thread.
I'd like to suggest that if you're going to work on your car you think about buying the AIM, (ASSEMBLY INSTRUCTION MANUAL), it was used on the production line in St. Louis; the GM 1970 CHASSIS SERVICE MANUAL, it was used at the dealership's service department; and a headlight/wiper trouble shooting guide.
If you don't have these three helpers you could well be buying parts you don't need.
Good Luck!
Regards,
Alan
I also replied in your other thread.
I'd like to suggest that if you're going to work on your car you think about buying the AIM, (ASSEMBLY INSTRUCTION MANUAL), it was used on the production line in St. Louis; the GM 1970 CHASSIS SERVICE MANUAL, it was used at the dealership's service department; and a headlight/wiper trouble shooting guide.
If you don't have these three helpers you could well be buying parts you don't need.
Good Luck!
Regards,
Alan
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From: Dayton, Ohio
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make sure that vacuum wiper switch has an open vent line, lots of people plug them, because they see a vacuum line not connected to anything.
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From: delta ohio
Thread Starter
Advanced
Joined: Jul 2011
Posts: 58
Likes: 0
From: delta ohio
Safety Car
Joined: Oct 2007
Posts: 3,729
Likes: 267
From: Austin Texas
Corvette of the Year Winner 2017
2016 C3 of Year Finalist
1 problem at a time.
If your wipers get hung up on the door, because not fully open.
First wipers should not start until door is fully open,
this is interlocked thru the Door open switch. Adjust as needed.
Alan's picture shows the switch.
if the door fails to open all the way, either mech. binding, or bad actuator or wiper replay.
you need to test each item, not just replace.
If your wipers get hung up on the door, because not fully open.
First wipers should not start until door is fully open,
this is interlocked thru the Door open switch. Adjust as needed.
Alan's picture shows the switch.
if the door fails to open all the way, either mech. binding, or bad actuator or wiper replay.
you need to test each item, not just replace.
Thread Starter
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Joined: Jul 2011
Posts: 58
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From: delta ohio
wiper door
1 problem at a time.
If your wipers get hung up on the door, because not fully open.
First wipers should not start until door is fully open,
this is interlocked thru the Door open switch. Adjust as needed.
Alan's picture shows the switch.
if the door fails to open all the way, either mech. binding, or bad actuator or wiper replay.
you need to test each item, not just replace.
If your wipers get hung up on the door, because not fully open.
First wipers should not start until door is fully open,
this is interlocked thru the Door open switch. Adjust as needed.
Alan's picture shows the switch.
if the door fails to open all the way, either mech. binding, or bad actuator or wiper replay.
you need to test each item, not just replace.
