I successfully moved the sight glass and water sensor back to the non-burner end of the boiler.
Managed to avoid breaking the glass. Or distorting the o-rings beyond use. So hopefully, all is well.
The hardest part was draining the boiler while it was in place without upsetting everything else.
I am still looking for information on the components of the sensor itself. I just want to protect my
investment, and since these engines are 15 years old (but New-In-Box) I try to accumulate information on
pieces and parts as much as I can.
I have talked with Jerry at Clevedon, and he is working on a sight-glass based sensor in the future.
He already has the gas control unit, and this one (I understand) will be stand-alone.
I also added some protection of the sensor unit as I moved it in order to try and insure a longer life.
1. I was concerned about the exposure of the individual wires from the sensor as they were exposed
for about a 1/4 of an inch before they entered the plastic sheath and traveled on to the controller.
To do this I attached the sheath-end to the side of the shield, then I coated the exposed wires and and of the
shield with some "liquid electrical tape".
2. I added a layer of insulation between the end of the boiler and the sight glass. I took some aluminum tape, and on
the adhesive side, put a layer of asbestos paper. Then secured the tape (by folding over the ends) to the boiler under the
sight glass.
I fired up the boiler. It worked flawlessly. When I was at full steam pressure (60PSI) and had been running the engine
for a little while, I measured the temperature of the various components with a hand-held IR Thermometer "gun".
The boiler end (in direct line with the burner) was 315F. The Brass parts of the sight glass were at 275F.
The surface of the insulation was 220F. The Shield of the sensor was at 210F. So I consider the process a success.
My favorite pond is due to finally open next week. So I will have some pics and movies available after our July 4th holiday.
For you brits over there it is our celebration of "independence" -
Here are some pics.
Thanks for following the thread.
Regards,Jim
Denver, CO USA