Temperature Gauge question

[Unregistered]

Hi Don,

I recently purchased a water temperature gauge and sender (ISSPRO) for my late model A4. I sheared the square plug while trying to install my sender. I tried to remove the bushing but it appears to be locked up pretty good. While I did apply lots of penetrating oil and quite a bit of pressure, I couldn't get the bushing to budge. My next plan of attack is to apply some heat with a torch and use a pipe for more leverage on the bushing. Being at novice at this, I'm a bit concerned that I'm going to wind up cracking the head. How hard can I lean on this sucker? Do you have any recommendations on the best way to install a temperature sender at this point? Is there another way I can install a thermostat and get reliable readings?

I appreciate any help you can provide! Below is a link to a picture of the sheared off plug. (you also might be entertained by the pics of my clogged up thermostat, housing, etc.).

http://www.goodoldboats.com./ATOMIC4/MARKBUNCH/markbunchthermostatremoval.htm

Thanks,

Mark A. Bunch, Sr.

[MarkBunch]

Don,

Thanks for your advice. I was able to successfully install the water temperature sender after drilling and tapping the plug on the front of the head. I used a hacksaw to cut off the front of the plug, then I started drilling until I was up to an 11/16" bit. Finally, I used a 1/2" NPT pipe tap to fix up the threads. It turned out to be a lot easier than I thought.

Here are the pics:

http://keeldragger.com/Projects/WaterTempGauge.aspx

Mark A. Bunch, Sr.
http://www.keeldragger.com

[ButchPetty]

I was wondering if anyone has had problems with the Moyer Marine Product No. - GAUG_09_178 (ISSPRO) temp guage intermittently working?
Mine has had this issue since day one.
Or is there a reason that it is doing this that I have not found yet?
Most of the time it works fine......and then sometimes it doesn't work at all. :O

[hanleyclifford]

First eliminate the ground path as the problem starting with the block. Test resistance between block and negative on battery and continuity from where ever the gauge is mounted.

[Administrator]

Following Hanley's lead, you didn't by chance install the sending unit using Teflon tape, did you?

Bill

[ButchPetty]

Following Hanley's lead, you didn't by chance install the sending unit using Teflon tape, did you?

Bill

Holy _ _ _ _ !!! Yep, I think I did. Got to check that out. Makes good sense.
Thanks.