69 windshield washers
1 -I have had the original wiper motor rebuilt, After pushing the button 3-5 seconds a few times to activate the headlamp washers, the windshield washers won't stop squirting fluid when wiper's are on. Is there an adjustment or what can I do. 2- Are the wiper tubes suppose to squirt in 3 directions, if so, can they be adjusted by bending? one squirts down in the cowl area Paul klemetson
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Re: 69 windshield washers
#2 -- Yes they squirt in three directions IIRC (and it has been a long time). One points straight down to the windshield, one up toward the top of the windshield (but not over the car while the car is in motion) and one down below the blade. The general direction of all three can be adjusted by bending (carefully) the washer tube, but the relationship between the three streams of liquid is determined by the holes in the tube -- changing those would require soldering the offending hole closed and redrilling that orifice in a more desirable position. Remember the washers are intended to be effective while the car is in motion, and a static test, as is usually done during an operations check, may result in the fluid striking the car at an undesirable location; or even missing the windshield completely. Consider how the washers will work at typical legal road speed. Or better yet test them on the road.
BTW: The same operational considerations should be made for the sweep of the wipers. If testing on a dry windshield without the engine running the sweep will eb lass than on a wet windshield with the engine running and full voltage to the motor.Terry -
Re: 69 windshield washers
Terry--thanks for that info, makes a lot of sense if the squirters are on when driving verses setting. I will do a driving testComment
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Re: 69 windshield washers
It appears to me that the problem is in the washer pump and not the wiper motor itself. The same mechanism in the washer pump operates when you wash the windows or headlamps. You said that you "activate the headlamp washers" by pushing the button for 3-5 seconds. You don't really ever activate the headlamp washers but you hold in the button for as long as you want the water to be diverted to the headlamps and not the windshield. When the button is pushed in, current is sent to the solenoid mounted to the passenger side of the pump. This moves the internal valve to close off one side and open the other. As soon as you release the button the sliding valve reverts to the default position which sends water to the windshield. What I think is happening is that the pawl inside the washer pump that is lifted up to release the washer mechanism when the button is pushed in, is not falling back into place after the cycle is finished. This keeps the pump piston operating after one rotation of the plastic wheel inside. Either the pawl itself is stuck or current (actually just a ground) is not being cut after the button is released. I would suspect a mechanical problem since if the current is not cut, the fluid would always be diverted to the headlamps and not the windshield. During the windshield wash cycle, no current is seen at the washer pump. It is driven by the wiper motor until the cycle is complete.
JeffComment
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Re: 69 windshield washers
Jeffrey, thanks for the detailed explanation, we found the problem and fixedComment
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Re: 69 windshield washers
So, what was the problem/fix?
JeffComment
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