Re: How To Remove Temperature Gauge Wire From Head
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Here is what you are working with. Two places can cause issues. One is the bulb end where the tube connects seats against a smooth surface inside the head. Liquid seeping around that area getting between the nut and bulb can corrode and almost turn to concrete locking the bulb to the threads. The other is sediment which can accumulate around the bulb inside the head to expand and harden thus locking it in.
Some have had luck with ordinary rusty bolt removal products like PB Blaster and the like. Others have used something more toward the lime and calcium remover products like CLR. I have even heard that something like coca cola with lots of fizz action can break up the lock. Each requires time to soak and work and none are guaranteed. Hopefully someone else will have a proven method but whatever you do, good luck. It is so easy to twist or pull the tube off the bulb.
Posted on: 2014/7/1 9:32
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Howard
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Re: How To Remove Temperature Gauge Wire From Head
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Home away from home
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Thank you very much for the photo and explanation, I sprayed it with PB Blaster this past weekend and will keep at it since I know how it looks and your help. Many Thanks !!!
Posted on: 2014/7/1 11:03
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Re: How To Remove Temperature Gauge Wire From Head
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Home away from home
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A trick with PB Blaster is to spray it on, then spray the threads with a blast of compressed air. It helps drive the fluid into the threads. I've used this trick a number of times and it really increases the ability of the stuff to loosen up the fastening.
Posted on: 2014/7/1 15:51
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Re: How To Remove Temperature Gauge Wire From Head
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Home away from home
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Thank you David for this info and your reply, much appreciated !!!!
Posted on: 2014/7/1 16:32
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Re: How To Remove Temperature Gauge Wire From Head
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Home away from home
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Should you need to consider an alternative to an oil based product, I used Evaporust to dissolve the rust and corrosion on my wire/nut. Fortunately, my problem was that the nut and wire were out of the block but fused together and I could soak the end in a cup of the stuff. Good luck.
Posted on: 2014/7/1 17:15
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Re: How To Remove Temperature Gauge Wire From Head
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Home away from home
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April 2007 issue of Machinist Morkshop Magazine. They arranged a subjective test of all of the popular penetrants with the control being the torque required to remove the nut from a scientifically rusted environment.
Penetrant: Average Load: none 516 ft lbs WD40 238 PB Blaster 214 Liquid Wrench 127 Kano Kroil 106 ATF-Acetone mix 53. ATF Acetone mixtures appears to work the best.
Posted on: 2014/7/1 19:28
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Re: How To Remove Temperature Gauge Wire From Head
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Thank you Mark.
Posted on: 2014/7/2 7:31
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Re: How To Remove Temperature Gauge Wire From Head
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Home away from home
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Thank you for this formula, I'll give it a try.
Posted on: 2014/7/2 7:32
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Re: How To Remove Temperature Gauge Wire From Head
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Home away from home
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Problem with acetone is that it takes all your paint off as well.
Posted on: 2014/7/2 8:19
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I can explain it to you but I can't understand it for you
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