wiper motor
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 784
From: Simi Valley, CA
The two speed motor was optional: C1TZ17508D (Motorcraft WM139).
These two motors were used on 1961/63 F100/600's. 1964 and later wiper motors are different.
Laughing Gas
Joined: May 2002
Posts: 869
Likes: 36
From: Ohio
I think they are all interchangeable. My problem is I was going to use a 2 speed from a 65, but the park switch is bad. It's kind of a different setup that goes right in the cover to the gears. It's worn out and I can find a replacement. Can't even find the correct part #.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 784
From: Simi Valley, CA
I think they are all interchangeable. My problem is I was going to use a 2 speed from a 65, but the park switch is bad. It's kind of a different setup that goes right in the cover to the gears. It's worn out and I can find a replacement. Can't even find the correct part #.
You will also need the 2 speed wiper switch and there are several different versions of these, because one includes the washer switch, one does not.
Mountain Pass
Joined: Oct 2004
Posts: 139
Likes: 12
From: Orting
I have information about the park switch on these motors. The way the circuit works is when you turn the wiper switch to off it powers one of the pins on the park switch. the two pins ride on the motor gear which is conductive. this keeps the motor running until it hits an insulator section of the gear which breaks the connection and turns the motor off. The way these switches fail is (I know from first hand experience) if you turn on the wipers when snow is on the windows and the wipers get stuck and then you turn the switch off this powers the park switch, since the wipers will not move the circuit remains powered which causes heat and melts the plastic which hold the pins in place. The way I fixed mine was take the cover (which holds the park switch) off. Remove the keepers that hold the pins and springs in place. then fix the melted plastic with high heat epoxy. file using small swiss type files to the original shape make sure the pins are able to ride up and down under spring tension with out binding. reinstalled cover and ops check the park function. Mine worked like a champ. Good luck
Mountain Pass
Joined: Oct 2004
Posts: 139
Likes: 12
From: Orting
one more bit of information. I thought that p/n c3az17a511c was the number for the parking switch and cover assy. It is not DO NOT ORDER THIS PART. It will not be what you are looking for. It is the cover only. no switch
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 784
From: Simi Valley, CA
C3AZ17A511C .. W/S Wiper Motor Cover - Use with 2 Speed Wipers / Obsolete
Says nothing about any park switch, however....
EDIT:
According to the 1973/79 Ford Light Truck Parts Catalog: this IS the parking switch.1973/79 sez: Cover and Parking Switch Assy.
Fits: 1963/79 F100/350 / 1963/74 Econoline / 1963/66: Galaxie, Falcon / 1965/72 Mustang and etc.
GREEN SALES CO. in Cincinnati OH has 29 = 800-543-4959.
MILLER OBSOLETE PARTS in Binghamton NY has 5 = 800-546-7278.
PARTS INTERNATIONAL in Farmers Branch TX has 5 = 888-727-0418.
KINSEL L/M in Beaumont TX has 5 = 800-816-2894
Kinsel has a TON of obsolete parts. I called "Gina" and asked about prices.
She said they sell their obsolete parts for whatever the original price was. Which means Kinsel will be cheaper than the obsolete parts vendors.
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Mountain Pass
Joined: Oct 2004
Posts: 139
Likes: 12
From: Orting
I ordered this part from green sales and it was just the cover. It didn't have any provisions for a switch to mount. Luckily they took the part back and I was out only shipping
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Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 784
From: Simi Valley, CA
Look what I just typed above on EDIT. Green may have sent you the wrong part.
Laughing Gas
Joined: May 2002
Posts: 869
Likes: 36
From: Ohio
I have information about the park switch on these motors. The way the circuit works is when you turn the wiper switch to off it powers one of the pins on the park switch. the two pins ride on the motor gear which is conductive. this keeps the motor running until it hits an insulator section of the gear which breaks the connection and turns the motor off. The way these switches fail is (I know from first hand experience) if you turn on the wipers when snow is on the windows and the wipers get stuck and then you turn the switch off this powers the park switch, since the wipers will not move the circuit remains powered which causes heat and melts the plastic which hold the pins in place. The way I fixed mine was take the cover (which holds the park switch) off. Remove the keepers that hold the pins and springs in place. then fix the melted plastic with high heat epoxy. file using small swiss type files to the original shape make sure the pins are able to ride up and down under spring tension with out binding. reinstalled cover and ops check the park function. Mine worked like a champ. Good luck
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