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12-11-2020, 08:19 AM | #1 |
Member
Join Date: Sep 2014
Posts: 63
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Mod a water neck for gage
Any body ever drill and tap a water 29 neck for an aftermarket temp gage sending unit? Is how well did it work and what part of neck tapped and details like gage used.
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12-11-2020, 09:05 AM | #2 |
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Join Date: Sep 2013
Location: Dighton, Mass
Posts: 1,230
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Re: Mod a water neck for gage
How many I did was, 'too many' OK first you need a mechanical gauge they all come with fittings. Don't buy these that have high numbers buy the gauge with '0' '180' and '212'
gauges they now make are hard to read cause todays vehicles run hotter. Forget electric nobody makes 6vt gauges they may exist I never seen one. Next, the adaptor is pipe thread 'NPT"- next the proper drill and tap. The proper place is about 3/4" toward the rear of the block like where the starter is. The Rule is you have one chance ! Or although you may drill and tap the goose neck so if you make mistake can always braze it up and do it again. With that said, buy the gauge and bring the adaptor to the hardware store they will match the tread and the drill and tap practice on scrap first. I can not give you the tread size because the kit comes with a few adapters. Plenty of good ole Stewart Warner gauges on ebay too. And then tractor supple has nice gauge for 1939 to 1952 and up Ford tractor gauges no numbers but green band in the middle and red for hot pretty cheap got one on my dump truck and the needle anywhere in the green band is normal |
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12-11-2020, 11:34 AM | #3 |
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Join Date: Aug 2012
Location: South East Wisconsin
Posts: 1,279
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Re: Mod a water neck for gage
Wouldn't this be easier? Just use steel tubing cut to length and weld a pipe fitting into it, rather than all the drilling tapping.
This is in a car I just bought and temp gauge is not used currently. |
12-11-2020, 11:44 AM | #4 |
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Join Date: Aug 2012
Location: South East Wisconsin
Posts: 1,279
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Re: Mod a water neck for gage
https://www.mikes-afordable.com/product/A8273.html
Even easier. They also sell upper goose necks and water inlets already made for temp gauges. |
12-11-2020, 12:06 PM | #5 | |
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Join Date: May 2010
Location: Southern California
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Re: Mod a water neck for gage
Quote:
Charlie Stephens |
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12-11-2020, 01:05 PM | #6 |
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Location: Central Maine
Posts: 643
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Re: Mod a water neck for gage
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12-11-2020, 01:11 PM | #7 |
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Join Date: Jun 2010
Location: Temecula, CA
Posts: 4,085
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Re: Mod a water neck for gage
Flyboy, I've done that on several 30-31 outlets, with no problems. Big job covered it nicely, just be sure to point it so it doesn't interfere with access to any head nut or other thing you may want to get to at a later date. It's interesting to note that the other replies did not answer your question, this happens quite often!
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12-11-2020, 01:13 PM | #8 |
Member
Join Date: Sep 2018
Posts: 88
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Re: Mod a water neck for gage
Charlie is right. The casting is too thin to drill and tap = only about 1/8 to 3/16 thick.. I build mine like this. 1/4" piece of pipe nipple welded to face of gooseneck - out of way of head nut. Then JB weld to seal the hickkies in the weld. Some sandpaper to clean up th JB then some gren paint to make it pretty- no paint on his one yet.
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12-11-2020, 02:45 PM | #9 | |
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Join Date: Aug 2019
Location: Hagerstown MD
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Re: Mod a water neck for gage
Quote:
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12-11-2020, 03:22 PM | #10 |
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Join Date: Sep 2019
Location: Kountze,TX
Posts: 313
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Re: Mod a water neck for gage
Not sure about yours but my water outlet is plenty thick enough to drill and tap for a pipe thread. I have done several and none have leaked.
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12-11-2020, 04:21 PM | #11 | |
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Join Date: Jun 2014
Location: Melbourne, Australia
Posts: 7,496
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Re: Mod a water neck for gage
Quote:
BTW, I HATE those necks sold with a tapped hole already in them. What gives with putting the hole on the LHS of the neck where it makes access to the head stud not difficult. I have only ever bought one of them and it was so poorly made that I couldn't get the nut on the head stud for poor machining. Leave them on the vendor's shelf.
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