Yes, the hose on left side of motor. It goes through the dash and to the tee. You advised to remove it from tee and let it hang there. Since it will be connected to nothing, I was ust wondering what its purpose was, and why I no longer need it.

FYI, I broke the small hose that controls slow speed. Wipers work still in fast mode. Still, the speed is tolarable as I described. It was that way after I oiled the device as instructed and BEFORE I broke the slow speed hose. So, I'm wondering if my fast should be faster, because if it is operating as it should (which is tolerable to me), then slow would be useless.

Maybe I have a weak vacuum. Am wondering because I thought vacuum comes from oil sump. If so, I added a quart of oil to control tappet as many have done. Could adding the extra quart result in poor vacuum quality?

Also, did you say small hoses are 1/8"?

Our last posts crossed. I will follow your instructions. HH, you are the man!

When I experienced the problem earlier today, I was at a dealership client's place where we oiled the wipers. Because of you, I was the only one who knew to do that, and it worked! As far as water from the jar going into manifold, the mechanics there just scratched their heads and emptied the jar to stop it from happening again.

Thanks so much.

Oh, by the way, if we disconnect hose from motor at the tee, then what was the hose to the motor originally for? I will have no more hose to motor.

Also, I caught your description of the function of the 2 small hoses (for fast and slow). After oiling with pneumatic oil today, I see the speed as tolerable. I was unaware of the sliding device, so it has always been on fast (since travel of blades is narrow). If fast is tolerable, slow would be useless. How fast is fast supposed to be?

Cool. We are getting close.

Here's a marked pic to show vacant nipple better.

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Here's a view of the wiper control device from the left side. You can see 2 things.

First, you can see the vacant nipple at the bottom, dead center.

Second you can see the hose at the right side of balancing valve coming in from the jar. The two hoses at the bottom of balancing valve go to oil pan and manifold as in diagram.

Moving hose from jar away from balancing valve and onto vacant nipple will leave a vacant nipple at the balancing valve.

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We may have the answer, now, but I'll ask you first since you obviously know way more than me.

At the bottom of the wiper device (dead center and obscured behind the thinner black hose in the photo) is a 1/4 nipple that is not used. I had the impression (maybe wrongly) that it was intended for air relief or something, but maybe not.

Of course, if that is where the hose from the jar is really supposed to go, then what about the diagram where it shows a hose is supposed to go from the jar to the balancing valve (in pic3 that you posted)? Obviously, if I move this hose, then I will have an open slot at the balancing valve.

BTW, you are correct in that, at the jar, there is only 1 hose. The other 2 very thin ones are wires. Does this mean electrical and no vacuum?

Okay. THe larger hose from the left side of motor goes into dash, and joins the tee, where the smaller 1/8 hoses split off.

The two smaller hoses from the wiper device go into dash and hook up to the wiper control knob at the dash.

So, to hook-up the hose you mentioned (which goes to the manifold nipple at the balancing valve (in pic 3 you posted) to the tee inside th dash would require me to disconnect the one that goes from the left side of the motor.

Am I clear?

Actually the smaller black hose from the wiper device goes into the dash through another grommet. So does the smaller, light-colored hose. The smaller black hose was somewhat rigid, and when I squeezed it between my fingers, the damg thing broke in half. I think it should be an easy fix to replace it, though.

Is that black cylindrical thing to the right of the device a motor?

From the balancing valve in Pic3 drawing you posted, the hose goes to jar as shown in my 2nd photo. The hose goes in the jar and then, attaches to a nipple under the solenoid below the jar cap (i.e. inside the jar and beneath the solenoid). Also beneath the solenoid is a 2nd nipple. This attaches to a 6-inch hose that just sucks water out of the jar. It goes to the bottom of the jar.

In my 1st photo (wiper control device), the hose coming out of the left side of the motor goes into the dash through the gromet. I have no clue why there is not another hose going into that same gromet to perhaps feed water to the hose coming out and going to the black motor (I assume that's what it is).

Water Jar:

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