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Author Topic: Astonishingly Stubborn Jensen Sight Glass Ring Nut  (Read 658 times)

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  • TedO
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Astonishingly Stubborn Jensen Sight Glass Ring Nut
« on: February 23, 2020, 11:06:48 am »
Anything I am missing here on unscrewing an extremely stubborn Jensen sightglass ring nut?
Here's what I have tried so far:
-Penetrating Oil
-Descaling solution inside and out
-Heat - bringing boiler to steam
-plenty of torque
-lots of patience and several days of retries
 >:(
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-TedO

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Re: Astonishingly Stubborn Jensen Sight Glass Ring Nut
« Reply #1 on: February 23, 2020, 01:04:33 pm »
I had the same problem, tried the same actions without success.  The eventual fix was to further tighten the ring before trying to unscrew it - that worked for me.

Dave
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In a world of small engines every man is a giant

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Re: Astonishingly Stubborn Jensen Sight Glass Ring Nut
« Reply #2 on: February 23, 2020, 01:40:59 pm »
I made a much sturdier tool than what Jensen supplies and I agree that sometimes further tightening will help free it.
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Re: Astonishingly Stubborn Jensen Sight Glass Ring Nut
« Reply #3 on: February 23, 2020, 03:20:31 pm »
Thanks Dave & Gil - "counterintuivity" for the win!
Tightening a little did the trick. Am gonna put a tiny bit of anti seize on those threads for the reinstall.
I agree the Jensen tool is of little value - it lasted but the first few seconds of this ordeal.
Ended up making an inelegant tool out of 3/32" fence brace that was snug enough to stay put under load.
Would love it if somebody sold a proper tool for this job (hint, hint)!
-Ted
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-TedO

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Re: Astonishingly Stubborn Jensen Sight Glass Ring Nut
« Reply #4 on: February 23, 2020, 03:44:36 pm »
Well done!

I love it when people make their own tools.
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Bob

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Re: Astonishingly Stubborn Jensen Sight Glass Ring Nut
« Reply #5 on: February 23, 2020, 03:55:08 pm »
Quote from: RedRyder on February 23, 2020, 01:40:59 pm
I made a much sturdier tool than what Jensen supplies and I agree that sometimes further tightening will help free it.

Yes Gil that's what I made as well. One that didn't bend so easily. The supplied one is fine for relatively new engines, but old ones it struggles with.
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Jim

Blue Heelers Model & Toy Steam Engine Room YouTube Channel -
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Re: Astonishingly Stubborn Jensen Sight Glass Ring Nut
« Reply #6 on: February 23, 2020, 05:50:56 pm »
Yep, I was a tad disappointed with the Jensen tool myself. I guess it just kicks me for being lazy- I could've just made one of scrap stock that was much sturdier. Since I was placing an order anyway I thought I'd give it a go.
 Now i have to make one, and still get the nut loose. It is bottomed out enough to push the gasket out...
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Bennydaheeb

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Re: Astonishingly Stubborn Jensen Sight Glass Ring Nut
« Reply #7 on: February 23, 2020, 07:27:49 pm »
Glad you got it sorted out! 🤠
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Re: Astonishingly Stubborn Jensen Sight Glass Ring Nut
« Reply #8 on: February 23, 2020, 09:16:06 pm »
I must've bent 3 or 4 of the Jensen "tools" before making a stronger one  :D
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Nick
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