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Washer Fluid not spraying

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Old Sep 12, 2015 | 04:11 PM
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Default Washer Fluid not spraying

Well, the motor for the blades works fine, but the wiper fluid doesn't spray. I am thinking it's probably the motor is shot. Mine looks different than the Chilton's diagram (1970) the washer fluid motor is not under the washer container but looks like it is attached to the wiper motor on the side.

Does anyone know if that is a replaceable part (washer motor only, not wiper motor)? If so where might I find one? Eckler's doesn't seem to show it.

Thanks!
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Old Sep 12, 2015 | 04:45 PM
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The pump runs off of the same motor as the wipers. Chances are good it's the diaphragms are stuck/dried/cracked. Reseal kits are available at most suppliers

Check this post for some info
https://www.corvetteforum.com/forums...30-w-pics.html

HIH
M
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Old Sep 12, 2015 | 05:35 PM
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Thanks - that gives me a good place to start here. It seems like that would be the weakest point and first to go.

Originally Posted by Mooser
The pump runs off of the same motor as the wipers. Chances are good it's the diaphragms are stuck/dried/cracked. Reseal kits are available at most suppliers

Check this post for some info
https://www.corvetteforum.com/forums...30-w-pics.html

HIH
M
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Old Sep 12, 2015 | 07:45 PM
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I checked the diaphragms and they are still all in good shape and not sticking. I also checked the intake hose from the reservoir and it is clear.

Should I hear an audible noise when I push the washer fluid button? Maybe like a motor turning on?

I guess the next step is to take the motor apart, but I am hesitant to do it since it is powering the blades just fine.



Originally Posted by Mooser
The pump runs off of the same motor as the wipers. Chances are good it's the diaphragms are stuck/dried/cracked. Reseal kits are available at most suppliers

Check this post for some info
https://www.corvetteforum.com/forums...30-w-pics.html

HIH
M
Reply
Old Sep 12, 2015 | 08:39 PM
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Yes, If the pump is working you should hear a solenoid click and then pump clicking away as the wiper motor is turning. Take the black cover off, reconnect the wires and you can see it's operation.
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Old Sep 12, 2015 | 08:43 PM
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Could be as simple as a needing to be primed.
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Old Sep 12, 2015 | 08:45 PM
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I thought about that - but wasn't really sure how to go about it?


Originally Posted by War Bonnet
Could be as simple as a needing to be primed.
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Old Sep 12, 2015 | 08:50 PM
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To prime, use a squeeze bottle filled with water, connect to hose at the washer fluid bottle and squeeze.............
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Old Sep 12, 2015 | 08:51 PM
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Originally Posted by lentze
I thought about that - but wasn't really sure how to go about it?
Blow fluid (water) through the hose at the pump until it comes out the nozzles. Reconnect at the pump, be certain it's to full a reservoir, give it try.
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Old Sep 12, 2015 | 09:00 PM
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Thanks, yeah I will give that a shot - fingers crossed.


Originally Posted by War Bonnet
Blow fluid (water) through the hose at the pump until it comes out the nozzles. Reconnect at the pump, be certain it's to full a reservoir, give it try.
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Old Sep 12, 2015 | 09:16 PM
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Ok I primed it from the hose leading into the reservoir to the point where it was squirting out of the wiper blade onto the window. But, unfortunately the button would not make it pump and I do not hear any audible difference when pushing the button.

Would that mean potentially buying a whole new wiper motor? Or should I start thinking electrical now?

Thanks!

Originally Posted by War Bonnet
Blow fluid (water) through the hose at the pump until it comes out the nozzles. Reconnect at the pump, be certain it's to full a reservoir, give it try.
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Old Sep 14, 2015 | 05:40 AM
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Originally Posted by lentze
Well, the motor for the blades works fine, but the wiper fluid doesn't spray. I am thinking it's probably the motor is shot. Mine looks different than the Chilton's diagram (1970) the washer fluid motor is not under the washer container but looks like it is attached to the wiper motor on the side.

Does anyone know if that is a replaceable part (washer motor only, not wiper motor)? If so where might I find one? Eckler's doesn't seem to show it.

Thanks!






Mine squirted but had an aftermarket pump fitted so I just fitted the correct one this weekend

Purchased from Eklers
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Old Sep 14, 2015 | 06:49 AM
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Originally Posted by lentze
Ok I primed it from the hose leading into the reservoir to the point where it was squirting out of the wiper blade onto the window. But, unfortunately the button would not make it pump and I do not hear any audible difference when pushing the button.

Would that mean potentially buying a whole new wiper motor? Or should I start thinking electrical now?

Thanks!
Certainly sounding like the solenoid isn't working.

Pop the plastic cover off and you can see the solenoid that pulls the engagement for the pump




If it's not pulling that lever, take a meter or test light and check the two leads that plug in on the front of the washer pump and see if they get a pulse when you press the button.

The solenoid is replaceable if you can find another one to scavenge off, careful early cars had barrel connectors, mid 72 seems they switched to spade connectors like shown)

M
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Old Sep 19, 2015 | 09:05 PM
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So after jiggling the wires and making sure those two tiny solenoid wires were touching the connections, I got a clicking sound when pushing the button. On further inspection the clicking is coming from the piece of metal popping upward toward the solenoid when the button is pushed (see photo with red arrow pointing to metal part). I still get no lever action and can't figure out how this mechanism is supposed to turn the pump. Are there any good diagrams out there that show how this works/connects?






Originally Posted by Mooser
Certainly sounding like the solenoid isn't working.

Pop the plastic cover off and you can see the solenoid that pulls the engagement for the pump


If it's not pulling that lever, take a meter or test light and check the two leads that plug in on the front of the washer pump and see if they get a pulse when you press the button.

The solenoid is replaceable if you can find another one to scavenge off, careful early cars had barrel connectors, mid 72 seems they switched to spade connectors like shown)

M
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Old Sep 19, 2015 | 09:14 PM
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Ahhh the wonders of the washer pump

Here's my attempt to explain from another post, the two arms are the ones just under that solenoid your looking at. the one closest to the solenoid I refer to as the magnet arm, the lower one is the ratchet arm.

When the wiper motor is turning, the ratchet arm is always moving back and forth with the cam wheel but it's not ratcheting the gear ahead, when the washer button is pressed, the electromagnet moves the second arm (magnet arm) up and allows the ratchet arm (lower one) to engage the ratchet gear to start turning it, the ratchet arm then pulls it around one tooth at a time and pumps the pump.

When it makes one full turn the magnet arm drops back into the off spot and it stops the ratchet arm from engaging the gear again.

Here's the thread I made in all it's bloated glory
https://www.corvetteforum.com/forums...-assembly.html
Skip down to about 2/3 the way of the first post for the pump bits

M
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