So, turns out that changing a thermostat on a 165 is not exactly straight forward. The bolts that you need to take out are right up against the bottom of the fuel tank under the hood. Taking the hood and fuel tank off is a rather large job. I didn't want to take them right off so here's what I ended up doing.
I removed the grill and took out all the bolts holding the hood down. I also took the battery out and removed the bolts holding down the instrument panel (and hood). I propped up the hood with a broom handle.
There is 4 bolts on vibration isolating rubber standoffs the hold the fuel tank up. I took the two in the front of the tractor right off. I loosened the two towards the drivers seat all the way without removing the nuts.
I disconnected the two fuel lines. The supply line and the return line. Make sure to shut the fuel valve off at the tank prior to breaking the line.
Now I lifted the front of the fuel tank right up out of the bracket. I used a couple of wooden blocks to support it up off the block. I was careful not to let the wood project out to the left side too far so as to put any weight on the injectors. Don't forget, I emptied the fuel tank, so it wasn't too heavy.
From there, two bolts to remove the bracket that the fuel tank sits on. Two more bolts on the top of the water pump to get at the thermostat.
Changed the thermostat,
Rebuilt the gasket,
Replace the bolts in the water pump housing,
Replace the bracket the fuel tank sits on,
Drop the fuel tank back into place,
Reconnect the fuel lines,
Drop the hood back down.
Replace the battery.
Bolt everything back up.
Now before starting the tractor, remember you can have air in the fuel lines. The return line disconnects right after the last injector on my tractor. The supply line disconnects right after the valve on the fuel tank. I opened the bleeder on the first fuel filter and pumped manually until there was only fuel coming out. Since the air in the return line just goes back to the tank, that's all there was to it.
Hope this helps you save some time getting your thermostat changed!
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Today's Featured Article - Madison's County - by Anthony West. Philip Madison has been a good friend of mine for quite some time. He has patiently suffered my incessant chit chat on the subject of tractors for longer than I care to remember, and on many occasions he has put himself out, dropped what ever it was he was doing, to come and lend a hand cranking handles, or loading a find onto a trailer. Although he himself has never actually owned or restored a tractor, he was always enthusiastic and always around helping with other peoples projects.
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