Softening harden rubber - lights FYI

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inairam
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Softening harden rubber - lights FYI

Postby inairam » Tue Apr 25, 2017 9:28 am

One set of round backlight had the rubber connections hardened to the point the mating connection would not go in. I have not been able to find these connections and did not want to replace the lights fixtures that were otherwise ok
before.png


I did a search and there is a lot of info on softening harden rubber by soaking it in 3 parts alcohol ( I used denatured because we had it at work isopropyl is what is recommended) and 1 part methyl salicylate (AKA Wintergreen Oil it smells like a cross between Lysol and a candy shop)
materiial.png

soak.png


After 24 hours the rubber was soft. ( It I did it at home I would have checked it more frequently and may have pulled it sooner)

after.png
afterwithplug.png


It does not come up much but here you go if it does.
Last edited by inairam on Thu Apr 27, 2017 12:37 pm, edited 2 times in total.
When you only have 9 horsepower you need to know the names of all of the ponies!

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ricky racer
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Re: Softening harden rubber - lights FYI

Postby ricky racer » Tue Apr 25, 2017 9:33 am

Great post!! Hopefully it will find a permanent spot in the "how to" section.....
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Re: Softening harden rubber - lights FYI

Postby pickerandsinger » Tue Apr 25, 2017 9:39 am

Farmall Cub Creme de Menthe...Seriously good to know...Thanks Dave
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Don McCombs
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Re: Softening harden rubber - lights FYI

Postby Don McCombs » Tue Apr 25, 2017 12:37 pm

Looks like it had some effect on the paint?
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Re: Softening harden rubber - lights FYI

Postby MAGNETO » Tue Apr 25, 2017 12:50 pm

The crying face drawn on the workbench is a nice, humorous touch.
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inairam
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Tractors Owned: 1948 with international 1000 loader
1949 with kub klipper belly mower.
1957 with c-2 mower & c-54 grader blade
1965 lo-boy with c-3 mower
1975 with homemade mower
Memberships: Rough and Tumble Engineers Historical Association;Chapter 8 IH Collectors; IH Collectors Worldwide
Circle of Safety: Y
Location: Glen Mills PA

Re: Softening harden rubber - lights FYI

Postby inairam » Tue Apr 25, 2017 12:57 pm

The alcohol did impact a very crappy over paint job but not the OEM paint. The whole tractor has very poor white and wrong color yellow over paint

I did not notice the crying face on the bench. Was not intentional but it was fitting. Rather be lucky than good!
When you only have 9 horsepower you need to know the names of all of the ponies!

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Re: Softening harden rubber - lights FYI

Postby Matt Kirsch » Tue Apr 25, 2017 2:50 pm

Makes sense, we used to use wintergreen oil on our indoor RC car tires to give them more grip on the carpet track.

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Don McCombs
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Re: Softening harden rubber - lights FYI

Postby Don McCombs » Tue Apr 25, 2017 10:29 pm

Where did you get the wintergreen oil?
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inairam
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Tractors Owned: 1948 with international 1000 loader
1949 with kub klipper belly mower.
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1965 lo-boy with c-3 mower
1975 with homemade mower
Memberships: Rough and Tumble Engineers Historical Association;Chapter 8 IH Collectors; IH Collectors Worldwide
Circle of Safety: Y
Location: Glen Mills PA

Re: Softening harden rubber - lights FYI

Postby inairam » Wed Apr 26, 2017 6:04 am

online. Amazon I think. google both the names. wintergreen oil is an " essential oil" you get a lot of health food sites. the chemical name gives you cheaper options.
When you only have 9 horsepower you need to know the names of all of the ponies!

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PoconoCub
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Re: Softening harden rubber - lights FYI

Postby PoconoCub » Wed Apr 26, 2017 6:11 am

inairam wrote:One set of round backlight had the rubber connections hardened to the point the mating connection would not go in. I have not been able to find these connections and did not want to replace the lights fixtures that were otherwise ok before.png


Are you talking about these connectors?
d305s.jpg
d305s.jpg (17.15 KiB) Viewed 235 times

If so they are available at TM Tractor http://www.tmtractor.com/new/el/4916fp.htm
Attachments
teardroplightterminal.jpg
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Re: Softening harden rubber - lights FYI

Postby Stanton » Wed Apr 26, 2017 6:26 am

PoconoCub wrote:Are you talking about these connectors? If so they are available at TM Tractor http://www.tmtractor.com/new/el/4916fp.htm


I don't believe he is. He has round-backed headlights (later model Cubs), your pic shows teardrop style (earlier models). The rubber piece on a teardrop headlight is supposed to remain hard.
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inairam
501 Club
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Posts: 894
Joined: Wed Jul 08, 2015 10:24 am
Zip Code: 19342
Tractors Owned: 1948 with international 1000 loader
1949 with kub klipper belly mower.
1957 with c-2 mower & c-54 grader blade
1965 lo-boy with c-3 mower
1975 with homemade mower
Memberships: Rough and Tumble Engineers Historical Association;Chapter 8 IH Collectors; IH Collectors Worldwide
Circle of Safety: Y
Location: Glen Mills PA

Re: Softening harden rubber - lights FYI

Postby inairam » Wed Apr 26, 2017 6:28 am

No the round back lights used in the mid 60s and later have a different molded connection.
When you only have 9 horsepower you need to know the names of all of the ponies!

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PoconoCub
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Re: Softening harden rubber - lights FYI

Postby PoconoCub » Wed Apr 26, 2017 7:01 am

Stanton wrote:
PoconoCub wrote:Are you talking about these connectors? If so they are available at TM Tractor http://www.tmtractor.com/new/el/4916fp.htm


I don't believe he is. He has round-backed headlights (later model Cubs), your pic shows teardrop style (earlier models). The rubber piece on a teardrop headlight is supposed to remain hard.


Ahh didn't realize they were round back lights, with my eyes I need to look a bit better.
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