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How to remove corroded water temperature probe from engine


 
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bolt37
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PostPosted: Sun Jan 20, 2019 6:18 pm    Post subject: How to remove corroded water temperature probe from engine Reply to specific post Reply with quote

Guys,

I am replacing all the gages on my 1965 Massey 165, gas burner. My temp probe will not even start to come out, and it is the brass type fitting with the probe capillary coming out the center. Can't get a wrench on it, and if I use a socket I will need to cut the capillary tube. I have had it soaking with Kroil for weeks and tapping it with a flat punch on one of the hex crowns to try to start it to rotate. Also tried an air powered chisel with a flat tip, not on full speed. But it is deforming, and I am afraid it will break off leaving the body in the cast iron part. Trying to do this without removing the cast iron coolant block from the engine. Figure that would be a disaster, too. How to remove corroded water temperature probe from engine? Any good tips?

Can it be drilled out without damaging anything?

Any ideas would be great!

Thanks!

Brent
 
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Brendon Warren
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PostPosted: Sun Jan 20, 2019 6:56 pm    Post subject: Re: How to remove corroded water temperature probe from engi Reply to specific post Reply with quote

If it needs replacing then I wouldn't
hesitate to cut it off an use a socket.
 
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Brendon Warren
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PostPosted: Sun Jan 20, 2019 7:00 pm    Post subject: Re: How to remove corroded water temperature probe from engi Reply to specific post Reply with quote

If it were a working original I wouldn't cut it.
 
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Bruce(OR)
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PostPosted: Sun Jan 20, 2019 9:14 pm    Post subject: Re: How to remove corroded water temperature probe from engi Reply to specific post Reply with quote

Did you warm up the engine before trying to remove it?
 
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miner09
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PostPosted: Mon Jan 21, 2019 6:18 am    Post subject: Re: How to remove corroded water temperature probe from engi Reply to specific post Reply with quote

Did you try heating with a torch?
 
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Mike Groom
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PostPosted: Mon Jan 21, 2019 7:25 am    Post subject: Re: How to remove corroded water temperature probe from engi Reply to specific post Reply with quote

You said you were replacing all the gauges so what does it matter if you cut the cap. tube? 9 times out of ten it will break anyway,they tend to corrode on the
inside and won't spin so I would cut it and use a socket after I apply some heat.
 
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bones774
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PostPosted: Thu Jan 24, 2019 11:12 am    Post subject: Re: How to remove corroded water temperature probe from engi Reply to specific post Reply with quote

Soak it, impact hammer and socket, drive both ways loosen/tighten, back and forth, several times or over coupla days.
 
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bolt37
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PostPosted: Tue Jan 29, 2019 6:08 am    Post subject: Re: How to remove corroded water temperature probe from engi Reply to specific post Reply with quote

Well I have some good news! I used "Kroil" penetrating opil over a period of about a week. Then I cut the capillary tube and put a socket on the fitting and it came right out!

I hated to cut it but had to. The gage was non-functional and since it comes as a system, you can't just fix the sensor, or just the gage, easily. I know some websites that give instructions on how to repair some aspects of these systems, but looks very time intensive to me.

Kroil is the BEST I have ever seen to get stuff loose. Just be patient, give it time to work.

I'll post later on getting the new sensor/gage installed.
 
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