E Bay Tachs fogging up??? - Snowblower Forum : Snow Blower Forums
 
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post #1 of 8 Old 03-15-2018, 07:34 PM Thread Starter
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E Bay Tachs fogging up???

I have two Ebay tachs, one installed on my 10/32 and one on my 8/25. Both have fogged up the display while blowing the latest Noreaster. One has a replaceable battery - I tried to seal the back with duct tape and the front edge with electrical tape but it still fogged. The other is "sealed" but still fogged. Has anyone else has this issue? Might have to just stick it in a ziplock to keep it dry. I am at a loss to figure out where the water is getting in.

Thanks in advance for your thoughts.

Mid-1980s Craftsman C950-52677-7
8/25 Tecumseh HM80
1983 10/32 Craftsman C459.52252
HMSK110 re-power
Southern New Brunswick near Bay of Fundy
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post #2 of 8 Old 03-15-2018, 09:54 PM
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What brand are these? I'm looking to buy one.

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post #3 of 8 Old 03-15-2018, 09:59 PM
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I have 2 of these but do not keep them on a machine, Just use them to set the RPM and remove them. No replacable battery but last a long time and cheap enough.
https://www.ebay.com/itm/Spark-Plugs...pYCYik&vxp=mtr

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post #4 of 8 Old 03-15-2018, 10:27 PM Thread Starter
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Quote:
Originally Posted by JLawrence08648 View Post
What brand are these? I'm looking to buy one.
They are the generic non branded ones found all over Ebay for around $10.00. They look identical to the ones Dauntae has listed. I have actually had 3. The first one I took apart when it stopped working (wet inside). The replaceable battery unit --I have replaced the battery 3 times when it went blank. All batteries tested OK, but each time the unit came back to life. I think water is seeping inside the front panel. I took the first one apart tonight. Not much inside except for a circuit board and battery. The front panel is glued? onto the plastic case. it must let a tiny bit of water pass. When the units work , they are great, but they don't like wet snow.

Mid-1980s Craftsman C950-52677-7
8/25 Tecumseh HM80
1983 10/32 Craftsman C459.52252
HMSK110 re-power
Southern New Brunswick near Bay of Fundy
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post #5 of 8 Old 03-15-2018, 11:25 PM
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I installed this one and it works fine so far...

https://www.ebay.com/itm/12V-LCD-Dis...QAAOSwXf1abwms
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post #6 of 8 Old 03-16-2018, 06:01 PM Thread Starter
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I installed this one and it works fine so far...

https://www.ebay.com/itm/12V-LCD-Dis...QAAOSwXf1abwms
Identical to the ones I have that are fogging up. 3 out of 3 that have the problem. They worked great until the snow turned wet. I am going to figure out how to enclose them.

Mid-1980s Craftsman C950-52677-7
8/25 Tecumseh HM80
1983 10/32 Craftsman C459.52252
HMSK110 re-power
Southern New Brunswick near Bay of Fundy
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post #7 of 8 Old 03-18-2018, 02:38 PM
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Try baking the wet tach in an oven at 100-120 degrees for a little bit. Then seal
the tach in a plastic box that you can buy in the dollar stores!
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post #8 of 8 Old 03-19-2018, 04:04 PM
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I glued back lid with superglue when it came out. If you squeeze tach it will pop right out. After gluing in place have not had any problems with fogging up.

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