Installing Temperature Gauge in TO-20

I just put a TISCO gauge in my TO-20 and had the same problem. I bought a small stiff wire wheel that would fit inside the hole where the sender goes and cleaned out all the rust. After that the sender went right in. It is a very snug fit, which is good, so it doesn't take much crud to make it not fit. You could probably get the same result with sandpaper on a piece of dowel.

Neal

Neal

I looked into wire clips and found that Massey only supplies two: p/n 180739M1 and 1750678M1. Its hard to tell from the catalogue what they actually look like. At a local auto store (Murrays Discount Auto) I found brake line clips that are fairly close to the original clips, except they will only work with a smaller bolt (1/4 inch to maybe 3/8 inch). For the temp gauge capillary line clips, I went to a local tractor repair shop and purchased used ones to go on the two head bolts (left side; front and rear). These allow the capillary line to be slid into the clip. I am in the process of trying to bend 1/4 inch brake line to have a conduit for light wiring that will be clipped along the oil pan (hence the brake line clips) and under the front axle and up in front of the radiator. Sorry for the long post. David, MI

Neal

The Tach is a DATCON that I bought from Genesee. You can find their web site under Parts Suppliers on this site. It is a great addition in my opinion. It is quite expensive and because it is so big its tricky to get it in the dash. You should check the voltage requirements.

Neal

When I drilled out the hole for my temp gauge, I placed it where a 3/8 inch hole was (holding a resistor block). In order to use the hole saw, I needed a good pilot hole--right where that 3/8 inch hole was! So, I used a body style washer with a 1/4 inch hole which I initally threaded for a 1/4 inch bolt so I could bolt the washer to the dash panel while I soldered it in place. This worked fine for the 2 inch hole saw. I did all my work from the back side of the dash panel, as I would have had to remove the steering wheel to do it from the front side. I look forward to seeing your pictures when they are developed. Thanks, David, MI

On the left side the center line of the gauges is about 4 1/2 inches up from the bottom of the dash.
The right side of the tach is almost touching the cast part of the steering coulmn that the dash bolts to. The temp gauge is very close to touching the tach and is also very close to the left edge of the dash. When I said lower I was thinking that the top of the temp gauge was lower than the top of the tach. Not a good description given the difference in size.
Also when I said small hole I was referring to the 2 inch hole for the gauges other than the tach.

Neal