Recent content by AbbottInstrument

The tapered plug seals into the reservoir via the hex nut. USE TWO WRENCHES and DO NOT OVERTIGHTEN as you will create bigger problems by doing so

You should under no circumstance use a drill to "test" your speedometer. This is and has always been very bad advice. A drill is high torque and if your speedometer binds internally you will irreparably damage internal components as everything is gear to gear driven. The only test would be to...

1956 Ford is a 1 year only gauge and sending unit design (internally they look the same as 1955 and earlier but they are entirely different). Your sending unit should have dual spades and have two stamps on it "KS" and "12v". It's a thermal sending unit with points making and breaking, not a...

Here is that prior attachment as a PDF

Clearing the gauge head is only a portion of getting the system functioning correctly. The gauge, the airline with fittings and the sending unit must each essentially be in perfect condition for the system to function as intended. Lots of damage is attributable to the over-tightening of the...

If going from 6v to 12v you definitely want to save yourself innumerable headaches down the road and make sure you are 12v-.

As others have mentioned, your OEM hydrostatic fuel sending unit pick up tubes are made of brass and they can, and often do, fail with age as fuel eats through them. There can be several other issues at the fuel sending unit as well but the most common and easy to spot is damage to the pickup...

We have had numerous instances where a clogged hydrostatic fuel gauge could not be cleared through the use of chemical(s) and required much more invasive efforts to rebuild.

The location of your float (as described in your post) in an OEM King-Seeley thermal fuel sending unit is not what determines the empty/full readings at the dash gauge (there are calibrations made inside the fuel sending unit and at the gauge to pair/calibrate the two). The float position at...

After some texted photos back and forth we "solved" the mystery. His SW mechanical temperature gauge has a 5/8-18 jam nut as expected, however the odd sleeve directly above his temperature bulb is rather buggered and his jam nut will not apparently travel down to the bulb itself. OP should be...

As others have mentioned, we always refer people to Melissa Klein of Clean Sweep Wiper Motor Service in Redmond OR

responded to the wrong post haha. The two posts above are what I expect the op has, which is an unnecessary adapter fitting given his setup

Can you supply a photo here or text me at the number in my signature line?

This adapter is converting from 1/2 pipe to a 5/8-18 with a seat for a mechanical temperature gauge (the opposite of what the op has stated he needs).

5/8-18 is standard for all mechanical temperature gauge jam nuts. If you purchased a new Stewart Warner mechanical temperature gauge then it will almost certainly have a 5/8-18 jam nut on the line (perhaps they are supplying a 1/2 pipe adapter separately but you will not need that given the...