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Radiator Fan Switch=Don't make them like they use to

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Radiator Fan Switch=Don't make them like they use to #1
ski.dive Fred M FL & VT, FL & VT, USA Sign in to contact 1979 MG MGB MkIII	Topic Creator (OP) Feb 23, 2017 12:48 PM Joined 9 years ago 1,966 Posts

Guys,

I have replaced my Radiator Fan Switch 3 times in one year [fans do not come on]

The quality of these Radiator Fan Switches suck!!

They sure Don't make them like they use to

I've replaced 3 of the ones bellow in the picture

Edited 2 time(s). Last edit at 2017-02-23 04:20 PM by ski.dive.

FAM SWITCH.jpg 15.8 KB

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Re: Radiator Fan Switch=Dont make them like they use to #4
ohlord Rob C A tiny Island off the coast of Washington State, N.W., USA Sign in to contact 1957 Land Rover Series I "EYEYIYI" 1957 Land Rover Series I "OVRLND" 1971 MG MGB 1971 MG MGB "Bedouin 2" & more	Feb 23, 2017 02:27 PM Top Contributor Joined 12 years ago 28,878 Posts

Why not install a quality adjustable relay controlled aftermarket switch.
You can get dual fan controls from speedway,summit,jegs etc.

LNDRVR4X4.COM
Home of Project "INCARN8'

1957 Series 1 Land Rover electric VEHICLE CONVERSION

FIXITUPCHAP.COM
FIXITUPCHAP INCORPORATED

RD3 Radar/ Electronic Warfare Technician
VIETNAM 1969-1972

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Re: Radiator Fan Switch=Dont make them like they use to #5
ski.dive Fred M FL & VT, FL & VT, USA Sign in to contact 1979 MG MGB MkIII	Topic Creator (OP) Feb 23, 2017 04:26 PM Joined 9 years ago 1,966 Posts

In reply to # 3456334 by mgv8glen I bought every 80 switch I could find. Fans come on at 200 deg. & off at 195,

What is an 80 SWITCH???

Edited 1 time(s). Last edit at 2017-02-24 09:36 AM by ski.dive.

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Re: Radiator Fan Switch=Don't make them like they use to #6
Kaiser Sosei J S Edmonds, WA, USA Sign in to contact	Feb 27, 2017 04:20 PM Joined 15 years ago 736 Posts

There are two different switches for the fans, one for just the 1980 Model year and one for the earlier cars (77-79). Like Glen, I found the earlier ones to be of substandard quality and changed to the later switch.

The negatives are: you will have to modify the harness as the switch for the 1980 has spade connectors as opposed to the pin connectors on the earlier models, and the 1980 one is about 3 times the price. You will need to buy the bush and clip as well.

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Re: Radiator Fan Switch=Don't make them like they use to #7
tvrgeek Scott S Hillsborough, North Carolinia, USA Sign in to contact 1973 Triumph Stag	Feb 28, 2017 01:42 PM Top Contributor Joined 9 years ago 15,011 Posts

Bought a brand new "Lucas" toggle switch from a supplier in England. It toggled twice and broke. I pulled off the new black bad and slid it on my 50 year old switch, which works fine.

Cogito ergo sum periculoso

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Re: Radiator Fan Switch=Don't make them like they use to #8
arnolda Arnold Adams Vancouver, WA, USA Sign in to contact 1980 MG MGB Limited Edition (LE)	Feb 28, 2017 04:18 PM Joined 10 years ago 337 Posts

I had to replace the thermostatic switch in my 80 LE as part of its rolling restoration.
I found somewhere on line that the switch was rated for 10 amps and that the fans, after warming up, will draw 11 amps.
Not the recipe for long switch life.
X 3 on installing a relay!!

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Re: Radiator Fan Switch=Don't make them like they use to #9
Kaiser Sosei J S Edmonds, WA, USA Sign in to contact	Feb 28, 2017 11:49 PM Joined 15 years ago 736 Posts

In reply to # 3459409 by arnolda I found somewhere on line that the switch was rated for 10 amps and that the fans, after warming up, will draw 11 amps.

I don't think that could be right. One fan alone pulls about 8-10 amps.

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Re: Radiator Fan Switch=Don't make them like they use to #10
arnolda Arnold Adams Vancouver, WA, USA Sign in to contact 1980 MG MGB Limited Edition (LE)	Mar 1, 2017 12:21 AM Joined 10 years ago 337 Posts

I found an article in the technical section of this data base (electrical and instruments ).

http://www.mgexp.com/article/77-80-cooling-improvements.html

which has a picture of the 1980 thermostatic switch, grommet and retaining clip.

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Re: Radiator Fan Switch=Dont make them like they use to #2
ozieagle Herb Adler Geelong Victoria, Australia Sign in to contact 1958 Wolseley 1500 "Wooly" 1966 MG MGB "Bl**dy B" 1995 Toyota Highlander "Hi Ace Van" 2022 MG ZS	Feb 23, 2017 12:52 PM Top Contributor Joined 13 years ago 15,856 Posts

Re: Radiator Fan Switch=Dont make them like they use to #3
mgv8glen Glenn Towery Dover, DE, USA Sign in to contact 1974 MG MGB GT	Feb 23, 2017 02:12 PM Top Contributor Joined 16 years ago 6,780 Posts

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