Fan thermo switch; is this right? (cheap FIX?)

Post your "How To", or share tips and tricks about maintenance related to four cylinder Wings. Only registered users can read this forum.

Moderators: Whiskerfish, Forum Moderators

User avatar
wingsound
Chrome Member
Chrome Member
Posts: 126
Joined: Sun Mar 30, 2008 5:13 pm

Post #31 by wingsound » Thu Apr 24, 2008 8:22 am

The fan switch is an 18mm thread, I think it's a 1.5mm pitch. I did find ONE at NAPA that would fit, it cost about $18. I had put the entire bike back together after having it apart for a month when I went to replace the fan switch. I was able to get the old one out with a 1-1/6 socket and 12" extension- then I went the put the new one in with I think it was a 7/8" deep well socket.

After dinking around trying to get the socket over the wire leads I had soldered on; to plug in to the Honda connector I finally got the stupid thing screwed in and tight. Now to plug my leads with banana plugs into the Honda connector! Do you think I could do that one handed or get both hands in there? NO WAY!

Well it was getting late and I was getting tired from saving so much money. That night there was a post about a aftermarket replacement available from Crescent Moon Cycles, so I called the next morning and YES- she had one for $40. I can't wait for it to arrive so I can put the right part in and just plug it in. And I won't need to remove the radiator again to do so.

You shoulod know I am cheap (just ask my employees) but my GW is my hobby, baby, indulgence- so I guess you could think of the right part (read no cob job) as like buying my bike a dozen roses- there- I feel justified now!
Naked 81' GL1100
93 Aspencade
74 R90/6

Hey- that sounds like a GoldWing!

ElPiloto
True Blue Steel Biker
True Blue Steel Biker
Posts: 2085
Joined: Fri Apr 06, 2007 4:01 pm
Location: Southern Arizona

Post #32 by ElPiloto » Thu Apr 24, 2008 12:59 pm

Bad information was edited out of this post.
Last edited by ElPiloto on Thu May 29, 2008 10:32 pm, edited 1 time in total.
"Some Cats Got it, Some Cats Ain't"

User avatar
Roady
Member Relations &_Graphics
Member Relations &_Graphics
Posts: 11886
Joined: Wed Jun 20, 2007 2:35 pm
Location: Port St. John, FL

Post #33 by Roady » Thu Apr 24, 2008 9:58 pm

RB wrote:Not to high jack the thread but..a PO permanently wired the fan tot eh ignition somehow so it comes on where I turn the key on to start the bike. I'd like to put a switch in the wire so I can at least turn it off when starting the bike. What I need to know is where the fan wires hit someplace easy to get to on the frame so I can wire in a switch and place it in a handy location.

I figure I can cut in anyplace to do this..but having trouble tracing/finding the fan wires..I can see them coming out of the thermo unit but they disappear behind that metal sheet behind the radiator..when do they come out????

This is on an 80 1100


IMHO, this is not a good idea. The fan should not run at the user's choice as the user ofttimes will make the wrong choice. And it should not run all the time because...well...because it's not supposed to run all the time.

Either bite the bullet and get a new switch from Frenchie's Moonplace or do the homemade one explained above.

Again, this is In My Humble Opinion.

Discuss (tho' this has been beat-to-death previously).

User avatar
therealmark
Billet Alum. Member
Billet Alum. Member
Posts: 230
Joined: Sat Nov 10, 2007 2:42 am
Location: Vancouver

Post #34 by therealmark » Sun May 04, 2008 3:31 am

ElPiloto wrote:
NISSAN STANZA (1982 - 1983)
NISSAN STANZA GL (1984 - 1985)
NISSAN STANZA XE (1984 - 1985)

This switch looks exactly like the original switch with the protruding sensor.



Stoopid thermoswitch. I've got the same problem.

Anyways I just bought one of these but the thread size is a smaller diameter than the Honda one. Too bad because otherwise it's pretty much friggin' identical. Oh well, I'll try the Geo/Suzuki ones instead.

M.
'78 GL1000 and '76 Volvo station wagon with 350 chevy.

User avatar
Roady
Member Relations &_Graphics
Member Relations &_Graphics
Posts: 11886
Joined: Wed Jun 20, 2007 2:35 pm
Location: Port St. John, FL

Post #35 by Roady » Mon Jul 28, 2008 12:37 pm

I've got the front end torn apart again. Radiator off ... need new water pump ... replace right head gasket ... she's really naked now.

The fan switch that I installed tested good on the bench. But its sensor was about 3/4 inch shorter than the original. On the bike it did not work consistently. Sometimes it switched on at about 5/8 on the gauge, other times it did not and the needle would creep up to the red zone. If I got moving the temp would come down but if I couldn't roll along I had to pull over and let it cool down.

I have ordered a new, OEM switch from Service Honda. $59 plus $9 shipping. It's coming with a bunch of other parts so that S&H charge gets distributed over all.

It's possible to get to the switch without tearing everything apart but it's a royal pain in the a$$.

I suggest that if you're in there, remove and test both the sending unit and the switch. The instructions and specs are in the Hayne's Manual (or in previous posts in this thread). If the fan switch is bad, replace it with OEM, this is not something you want to save a few bucks on. And do not forget to carefully inspect that water pump!

I'm now in there after only about 1000 miles because my water pump was bad (and has been for a long time) ... I neglected it ... put in the wrong coolant (use NON-Silicate, HondaTM brand) ... blew a head gasket ... and limped home with my tail between my legs. :oops:

User avatar
Whiskerfish
President
President
Posts: 31222
Joined: Thu Feb 16, 2006 9:34 pm
My Album: http://www.ngwclub.com/gallery/v/wingmans/whiskerfish/
Location: Norfolk Va

Post #36 by Whiskerfish » Mon Jul 28, 2008 3:38 pm

Roady wrote: I'm now in there after only about 1000 miles because my water pump was bad (and has been for a long time) ... I neglected it ... put in the wrong coolant (use NON-Silicate, HondaTM brand) ... blew a head gasket ... and limped home with my tail between my legs. :oops:


Dang That is a whole lot of lessons to learn in one post!! :shock:
"Agreement is not a requirement for Respect" CDR Michael Smith USN (Ret) 2017
1975/6/7/8/9 Arthur Fulmer Dressed Road bike
1975 Naked Noisy and Nasty in town bike
and a whole garage full of possibilities!!

Psst. oh and by the way CHANGE YOUR BELTS!!!!

heraldhamster
Honored Life Member
Honored Life Member
Posts: 4261
Joined: Wed Jun 28, 2006 2:52 pm
Location: up by the Canadian border in WA state

Post #37 by heraldhamster » Tue Jul 29, 2008 10:47 am

Roady wrote:...The fan switch that I installed tested good on the bench. But its sensor was about 3/4 inch shorter than the original. On the bike it did not work consistently. Sometimes it switched on at about 5/8 on the gauge, other times it did not and the needle would creep up to the red zone. If I got moving the temp would come down but if I couldn't roll along I had to pull over and let it cool down...


so, you're saying that this:
Roady wrote:Details:
1994 Geo Metro 1.0L 993cc 61cid L3 TBI
Radiator Fan Temperature Switch.


didn't work, right?
sorta bulldogged custom 1978 GL1000 - "geekster" - daily rider
full Vetter dress 1979 GL1000 - "Barge" - daily rider (currently down)
1986 1200 Aspencade - "Heart of Gold"
1978 for $100 - project in worx
1978 from a previous member here - taking up space
my original '79 bought in '91 - replacing engine (eventually, maybe someday)

A gentleman is one who puts more into the world than he takes out. ~ George Bernard Shaw

A competent and self-confident person is incapable of jealousy in anything. Jealousy is invariably a symptom of neurotic insecurity. ~ Robert A. Heinlein

The good thing about science is that it's true whether or not you believe in it. ~ Neil deGrasse Tyson

User avatar
Cookie
Honored Life Member
Honored Life Member
Posts: 15821
Joined: Thu Oct 25, 2007 11:37 pm
RIP: 1950-2011
Location: San Mateo, CA

Post #38 by Cookie » Tue Jul 29, 2008 12:40 pm

It's kind of interesting that my M5 Chinese police bike has a manual backup to the temp switch. This was really a commercial vehicle though.
Enjoy life,
Cookie


A guy with two sidecars can't be all bad.
Owner of 4.4 76s and one lone 75 Wings (does a spare engine make .2?)

User avatar
Roady
Member Relations &_Graphics
Member Relations &_Graphics
Posts: 11886
Joined: Wed Jun 20, 2007 2:35 pm
Location: Port St. John, FL

Post #39 by Roady » Tue Jul 29, 2008 2:35 pm

heraldhamster wrote:
so, you're saying that this:
Roady wrote:Details:
1994 Geo Metro 1.0L 993cc 61cid L3 TBI
Radiator Fan Temperature Switch.


didn't work, right?

It was "if-y".

Sometimes it did, sometimes it didn't.

That may also have had something to do with my totally shot water pump. I don't think it was working at even 50%.

User avatar
AZCycle73
Billet Alum. Member
Billet Alum. Member
Posts: 243
Joined: Tue Jun 03, 2008 2:08 pm
Location: Tucson, AZ

Post #40 by AZCycle73 » Tue Jul 29, 2008 3:21 pm

Well it seems my water pump is good so I'm going to go ahead and install the "cheap" Geo temp switch and see what happens. I'll keep everyone updated on the prognosis. Of course, I'm still a few weeks or so away from even firing it up for the first time, so I hope you're patient... :lol:
1976 GL1000 - in progress - 70,000 miles - Originally Sulfur Yellow

User avatar
Roady
Member Relations &_Graphics
Member Relations &_Graphics
Posts: 11886
Joined: Wed Jun 20, 2007 2:35 pm
Location: Port St. John, FL

Post #41 by Roady » Mon Mar 09, 2009 11:51 am

Added link to Cycleman's advice in original post and moved this thread to How-To for Wings forum.

User avatar
fish
SUPER BIKER!!!!
SUPER BIKER!!!!
Posts: 3110
Joined: Wed Feb 18, 2009 1:50 pm
Location: tucson

Fan Switch

Post #42 by fish » Wed Mar 11, 2009 1:48 pm

NAPA autoparts has a book with fan switches listed by thread size with opening and closing temps listed. Just find the old experienced counterman to help you! :roll:
Timothy Mark Fisher
Catalina Arizona
"ride it.. don't be one of those guys who will fix it 'til it's broken" (JDVorchek)
"It is not logic or economics that drive a motorcyclist but passion!" (bugdaddy66)
"I fully agree with fish, well at least 27% of the time."(Casper)
"Why do you have to ruin a perfectly good thread with common sense"(Placerville)
"my best guess for an answer would be a stream of complex expletives" (Transitman)
"I like a cold beer with my beer" (OldeWing)
"Most of us like the sport of wrenching too." (fred camper)
"Now go ride the heck out of it, til mother says do your chores"(Gowing)
"I agree with Fish" (Salukispeed)

Kinggoat
Tin Member
Tin Member
Posts: 15
Joined: Tue May 26, 2009 8:14 am
Location: Minneasota

Post #43 by Kinggoat » Mon Jun 15, 2009 7:44 am

I did the Geo Metro fan switch swap this weekend. It seems to work pretty good. No over heating or running hot. I do believe the next project will be replacing the stator, possible. Thanks for the switch advice.
Naked 1978 GL 1000

User avatar
kitbutterfield
Silver Member
Silver Member
Posts: 511
Joined: Thu Apr 16, 2009 5:39 pm

Post #44 by kitbutterfield » Wed Jul 01, 2009 2:34 pm

Now...I know this is probably a stupid question, but has anyone looked at fan switches from 70s Honda Civics?
I've not seen one in person & I've never tested it, but the photos I saw look nearly identical to the switch on my '76 Wing.

Please...Someone reply, before I go buy one & try it.

LOOK HERE
KB
1976 GL1000 Nudewing

User avatar
kitbutterfield
Silver Member
Silver Member
Posts: 511
Joined: Thu Apr 16, 2009 5:39 pm

Post #45 by kitbutterfield » Wed Jul 01, 2009 3:54 pm

I think I may have answered my own post...
I looked at the other threads on this topic & found that a replacement fan switch for the '76 Honda Civic is listed...
Beck/Arnley # 201-0817 seems to be one of the options that people have recommended.

I sure hope it works.
KB

1976 GL1000 Nudewing


Return to “How To 4-Wings (Tutorials Only)”

Who is online

Users browsing this forum: No registered users and 0 guests