B8200HST-D, high temperature whistle?

[Jwedd]

Since I mentioned cheap solenoid valves, I thought I'd better take a look... 3 minutes found this one, $53, and I'll bet you can find even cheaper deals. 8262H022 12/DC Asco Solenoid Valve 2-Way NC 1/4 | ASCO 2-Way Solenoid Valves 1/4 NPT - 12v DC | Valworx 'ｮ'
I remember almost buying one for a project that was going to cost me $30 something... 12V, of course.

Good ideas...I'll look some more. I think the valve needs to be "normally open" and the ground completes the circuit to stop fuel. That way, it will not be constantly activated and more liable to burn up/give out. The other one you posted has BSP, which will be hard to find fittings.

The problem with normal materials of construction, is that liquid petroleums often cause swelling of the gasket materials (especially certain kinds of plastics typically found in water valves).

I'll take photos as the items come in and assembly starts. The valve I think is the last piece to the puzzle. On the oil pressure, I'll simply tap into the warning light ground to shut off the relay. I got a good deal on a Murphy 518APH-12 kill switch on ebay. Thanks for the ideas and interest!

John

 

[varmint]

Well, the more expensive Asco valve is listed for "light oils" and has buna-n seals... oughta work?

 

[Jwedd]

Well, the more expensive Asco valve is listed for "light oils" and has buna-n seals... oughta work?

ok took some searching but I think this one will work. It is US made and listed for diesel fuel. $32 was the best price I could find. It has bigger than 1/8" orifice so will pass plenty of fuel.

R & K Products : AFC Model 111 Fuel Sutoff Valve-AFC11112 [79-AFC11112] - $31.97 Shipping is $15.

It is also on ebay with free shipping for $37, so I think this is the way to go. ebay 151273949673 but that item number will disappear, sooner or later (sooner, 'cause I'm likely to buy it )

Maybe the interesting aside on this valve is that it gets hooked in and activated with the ignition key, so turning the key off also turns the tractor off.

John

 

[Jwedd]

Re: B8200HST-D, high temperature whistle? (now, stationary PTO operation)

Ok here is a quickie update. Everything is installed now and I ran the tractor for 7 hours today on the gearhead water well.

Firstly, I discovered I had plenty of power. Earlier when I found that the tractor wouldn't pull over 8 PTO hp, it turns out that the jet cock valve (air bleeder valve) had been left open, and I wasn't getting much fuel pressure to the injector pump. It will run clear up to 2600 rpm now, about 10 hp PTO. So no issues with power. The sweet spot seems to be about 2000 rpm, it chugs away nicely. At 2200 rpm, it runs at about 190 degrees with 90 degrees ambient. It runs about 180 degrees at 2000 rpm.

I bought a Murphy kill switch (ebay) for about $40. I found an AFC 111 fuel shutoff valve from a propane company for about $25 inc shipping. The Murphy temp gauge was about $40 (ebay). 14 gallon fuel tank, spun aluminum cylinder, $160. I pigtailed off the oil pressure gauge sender to cover that aspect. Various fittings, wiring, new fuel lines everywhere, new belts, new thermostat, changed all the fluids and filters, and seems good to go.

 

[Egon]

Good show:thumbsup::thumbsup:

 

[Jwedd]

Good show:thumbsup::thumbsup:

Here is an update. Because of the extended drought, I've had to run this little Kubota for 18-20 hrs a day for the last 10 weeks. That's over 1200 hrs at 2000-2100 rpm (using the 750rpm PTO position). It's been really draining running 10 gallons of diesel down every day. The oil gets change 1x/week, the filter 1x/3 weeks, and the air filter/fuel filter 1x in 10 weeks.

There have been some issues over the 1200 hours. The idler pulley froze up, and that killed something--I think it just bogged the engine down before tripping any Murphy gauges. Then, I had the fuel pump get weak--I couldn't get the rpms into the power range, and it didn't matter whether the bleeder valve was open or closed (why I figured fuel pump). The tach hour meter also stopped clocking, although the rpm needle is still working.

I change the hydro fluid at the start, using the Kubota ultra synthetic.

As for temperature, the murphy gauge will get up to about 200degrees when it is about 100 outside. Otherwise, it runs at about 180. The radiator was rebuilt and re-cored.

So far, everything is going fine.

John