1966 Vacuum Wiper Hardware

[66CTBronco]

Hello Forum,
I've been looking for a photo of a vacuum wiper motor for a 66 that shows what may be missing from my motor. It has the little knob you pull out to turn on the vacuum, but the shaft to which the wiper blades attach, that extends through the back of the motor, has a little hole in it that i can only think would be for an arm or lever that would allow you to do something with it manually. My father in law had a bent nail through the hole in both motors... Both my vacuum motors work great, i don't have plans to replace it with electric, but would like to know if something is supposed to go into that hole. Every restoration picture i've seen has the visors up, and i can't see the motors! Any photos or references would be fantastic, thank you for your help!
chris

 

[thegreatjustino]

The 1966 vacuum wiper motors had an arm on the back that allowed you to manually operate them. This was in '66 only. The other years of vacuum wipers (67-mid year 69) didn't have the lever.

1966 in the left photo, later ones in the right.

 

[66CTBronco]

Well it's swell to know i have the right motors then. it appears to be baseball bat shaped. I think I can make a couple of those thank you very much for both photographs!!
c

 

[okie4570]

Well it's swell to know i have the right motors then. it appears to be baseball bat shaped. I think I can make a couple of those thank you very much for both photographs!!
c

Those manual levers are brass. I can't remember if mine are quite shaped like that or not I'll get some pics this evening. I've only seen the levers on the August and September 65' builds though.

 

[U13FL735]

Little bats is a pretty good description.

 

[66CTBronco]

How slim are the chances you could make some measurements so my son can make me a couple? I've got a lathe and some other machines in my shop but HE just got his journeyman's card so I'd have him do it lol! Interesting in that my pull knobs are brass on my wiper motors, but in justin's photo they appear steel or nickel plated. i can nickel plate either way. I'll have to check my motors to see if the stud is threaded and i can get that but length, diameter of the wide end, narrow end, and little collar would be really awesome. Does anybody (other than us home machinists) make these?
c

 

[U13FL735]

As soon as we get a break in this blizzard I'll get mine and measure them up!

 

[okie4570]

Mine are tarnished, but definitely brass underneath. Curious to see if U13FL35 comes up with the same measurements.

 

[66CTBronco]

Okie could you check your calipers? 80 thou wide is slightly more than 1/16"... they look to be probably 1/8-3/16 visually-could it be .180 and .135 and .185 per chance? And that will be good enough for me to make a print once i get my lathe set up i may make a bunch of these. production work is easy if you have a setup!

 

[U13FL735]

I had cleaned up my 'bats' with fine sandpaper while chucked up in the cordless drill, so they may be a tad smaller around. About the same length as Okie's at 1.070. I probably could have pressed mine into the wiper shaft a little more, but they're so small and fragile I didn't want to risk breaking something without any spares. The large dia. end on mine are about .184 , and they taper down to .134. The collar at the base measures back at about .183"

I need a couple of the odd shaped clips shown in the second picture, if anyone has extras. They're supposed to hold the vacuum tubing to the windshield frame. Good luck making the replacements CT,

Bob

 

[66Uncut]

Back in 2013, I purchased a parts kit that included these along with the pull knobs, from this guy:

www.rebuildingtricowipers.com

Trico Wiper Motors, Arms, Blades etc. Anco Wiper Arms & Blades Sorry we do NOT sell rebuild kits

rebuildingtricowipers.com

At the time, he referred me to an eBay auction. I don't remember how much they were and I can't find them on eBay. He may have some spare parts he sells direct.

I never installed them, but now that I've found them at the bottom of my small parts box, I'll add it to my todo list. Mine are chrome plated and were a bit large to fit the hole in my wipers. When I asked him, he replied:

"These are a bit oversized from the plating. From the factory they must have had a jig. As you press it in the chrome will peel back on the part that does not show. I find it helpful to hit the edge on my grinding wheel just a hair to allow for it to enter enough to allow it to be pressed in straight. You are Welcome to return them but they are just as they factory installed them,and you should not be scared to put a bit of pressure on it (in a vise). I have pressed in hundreds of them into "S" motors, they are meant to be tight so they don't come loose. Rob"

Hope this helps!

Post thickness below the ring:

Post thickness above the ring:

Post thickness at the top:

Ring thickness:

Length:

 

[66CTBronco]

poifect thank you very much! i had a guy rebuild the trico wiper motor in my stude years back the "piston" was hard as a rock and he apparently bought up all the trico stuff when they went out of business and now repairs and replaces at some pretty good prices. i'll take a gander and see if he has any but i have enough info to make some then thank you very much! If they were factory chrome plated i can plate mine in nickel and polish and i'm sure they'll be just fine! just saw his website that's him!
chris

 

[Oldtimer]

66uncut,
Can you give us the length from the bottom end of pin to the ring/shoulder?
Thanks

 

[66Uncut]

66uncut,
Can you give us the length from the bottom end of pin to the ring/shoulder?
Thanks

Here you go:

 

[okie4570]

My wiper motors are still on the bronco and right behind the visors and tough to get the mic in there at certain angles. I'd definitely trust someone's measurements that are taken from an unmounted wiper over my own.

 

[66CTBronco]

Thank you all very much, i'll be making a few of these shortly. Anthony, the third measurement you made, the .1435 may be off a little because the width of the jaws of your caliper will be on the thicker side of that tapered arm. The thin part of your caliper jaws should have close to a knife edge, if they were used to make the measurement i bet it would be the same thickness as the stud portion that inserts into the wiper arm shaft. I just calculated about 6 thou taper over the width of the jaws which puts the smallest diameter of the ball bat around .137. I am most grateful thank you! 6 thou won't be visible so i just drew up plans using your numbers, will subtract a thou overall so i can nickel plate them and put a little polish on them. I'll put a drill shaft into the holes on the arms to measure to make sure i've got a .001 press fit so they stay in there. My father in law had a 10 penny nail in each of them for all the years i knew, it may have wallered out the holes a little bit. Great Justino i think i found the website where you got the closeup photo of the wiper motor what a great site! it shows the new anti theft clips i just purchased and will be installing shortly even! can't wait to use that site to get my little truck closer to factory very exciting thanks!
c

 

[66Uncut]

Anthony, the third measurement you made, the .1435 may be off a little because the width of the jaws of your caliper will be on the thicker side of that tapered arm. The thin part of your caliper jaws should have close to a knife edge, if they were used to make the measurement i bet it would be the same thickness as the stud portion that inserts into the wiper arm shaft.

You're right. Sorry about that!, Here's some updated photos. Same size above and below the shoulder.

 

[66CTBronco]

wow i love math! Sorry for the trouble thanks for the fantastic photos! my wife was looking over my shoulder as i was scrolling through photographs making my drawing and she asked what i was doing so i told her the question i asked and i said about half a dozen experts all chimed in with photos and measurements and she said wow isn't that fantastic! I said the love of the bronco community is fantastic. when driving my 66 around i've had people follow me INTO MY DRIVEWAY to talk about the little truck! this forum is no exception thank you for the extra measurements!
c

 

[66CTBronco]

Wiperman just wrote back, only ones he has left are for his motors. Brass here we come!
c