Another wiper motor question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

nxtruck · 08-08-2013, 05:41 PM

Guys,
I'm going to upgrade the wiper motor on my 65' from a single speed to a two speed and have a question about it. When I look up a 2-speed wiper motor, they list both a 3-terminal and a 4-terminal setup. Can anyone tell me what the difference is between these (besides the obvious) and if either will work with what I'm doing?
Thanks in advance!!

luvbowties · 08-08-2013, 10:18 PM

Quote:

Originally Posted by nxtruck

Guys,
I'm going to upgrade the wiper motor on my 65' from a single speed to a two speed and have a question about it. When I look up a 2-speed wiper motor, they list both a 3-terminal and a 4-terminal setup. Can anyone tell me what the difference is between these (besides the obvious) and if either will work with what I'm doing?
Thanks in advance!!

Just guessing, but might the extra wire be for a washer option?
Sam

**Captainfab** · 08-09-2013, 12:45 AM

I've never seen a 2 speed without a washer, but I believe the 2 speed with a washer, has 4 terminals. I'll take a look at the shop tomorrow.

nxtruck · 08-09-2013, 08:09 AM

Thanks for the replies! The washer function may explain the difference in the number of terminals. I can say that I didn't see any mention of a washer pump with any of the listings for 2-speed motors, so I'm not sure.
Posted via Mobile Device

1963c-10 · 08-09-2013, 08:24 AM

The washer system is a bolt on option to the motor. The 63 Assembly book shows how to add the washer to a standard 2 speed motor. I also have two 2 speed motors, one is 3 and one is 4 plug. Both are 63 motors by the dates.

nxtruck · 08-09-2013, 09:56 AM

Thanks for the reply! So, apparently, either terminal configuration could have been used with a washer pump. I'm starting to wonder if it even matters which motor I order, since I'll be adding the correct wiring and switch for the 2-speed setup anyway. I really want to leave open the option of adding the washer pump, though.

08-08-2013, 05:41 PM	#1
nxtruck Registered User Join Date: Jun 2006 Location: Jackson, Mo. Posts: 607	Another wiper motor question Guys, I'm going to upgrade the wiper motor on my 65' from a single speed to a two speed and have a question about it. When I look up a 2-speed wiper motor, they list both a 3-terminal and a 4-terminal setup. Can anyone tell me what the difference is between these (besides the obvious) and if either will work with what I'm doing? Thanks in advance!! __________________ Chris 1966 Chevy C10 LWB, 434 sbc, TH350, 12-bolt, factory suspension, pump gas 7.02 @ 95.8, 1.45 60' 1965 Chevy C10 LWB, 355 sbc, TH350, daily driver

08-09-2013, 12:45 AM	#3
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,252	Re: Another wiper motor question I've never seen a 2 speed without a washer, but I believe the 2 speed with a washer, has 4 terminals. I'll take a look at the shop tomorrow. __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE

08-09-2013, 08:09 AM	#4
nxtruck Registered User Join Date: Jun 2006 Location: Jackson, Mo. Posts: 607	Re: Another wiper motor question Thanks for the replies! The washer function may explain the difference in the number of terminals. I can say that I didn't see any mention of a washer pump with any of the listings for 2-speed motors, so I'm not sure. Posted via Mobile Device __________________ Chris 1966 Chevy C10 LWB, 434 sbc, TH350, 12-bolt, factory suspension, pump gas 7.02 @ 95.8, 1.45 60' 1965 Chevy C10 LWB, 355 sbc, TH350, daily driver

08-09-2013, 08:24 AM	#5
1963c-10 Registered User Join Date: Nov 2011 Location: fayetteville nc Posts: 10,338	Re: Another wiper motor question The washer system is a bolt on option to the motor. The 63 Assembly book shows how to add the washer to a standard 2 speed motor. I also have two 2 speed motors, one is 3 and one is 4 plug. Both are 63 motors by the dates. __________________ 1963 Short bed step side SBW 427 big block and borg warner T-16 HD 3 speed manual http://67-72chevytrucks.com/vboard/s...d.php?t=519869 1963 Short bed fleetside BBW 348 1st gen big block w/Powerglide http://67-72chevytrucks.com/vboard/s...d.php?t=619024 1964 Short bed trailer

08-09-2013, 09:56 AM	#6
nxtruck Registered User Join Date: Jun 2006 Location: Jackson, Mo. Posts: 607	Re: Another wiper motor question Thanks for the reply! So, apparently, either terminal configuration could have been used with a washer pump. I'm starting to wonder if it even matters which motor I order, since I'll be adding the correct wiring and switch for the 2-speed setup anyway. I really want to leave open the option of adding the washer pump, though. __________________ Chris 1966 Chevy C10 LWB, 434 sbc, TH350, 12-bolt, factory suspension, pump gas 7.02 @ 95.8, 1.45 60' 1965 Chevy C10 LWB, 355 sbc, TH350, daily driver

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