normde2001
Elite Member
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Yanmar uses BSTP, (British Standard Tapered Pipe), threads.
Temp Gauge
- Thread starter deepNdirt
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California
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deepNdirt, that capillary tube work just like a mercury thermometer. As temperature rises, the fluid expands and pushes the fluid inside toward the gauge, which pushes the needle up from zero. The tube can be microscopic.
As for the threads, I think the BST (British Standard Thread) is only on the oil pressure port down by the oil filter while the water temperature port has Metric threads.
I discovered that US pipe fittings interchange with BST with the exception that a few of my US fittings were too large to catch the first thread. The rest of them had sufficient taper to start and thread in several turns. A little Teflon tape is a good idea because one of the two has its threads cut deeper, even though the threads-per-inch is the same.
As for the threads, I think the BST (British Standard Thread) is only on the oil pressure port down by the oil filter while the water temperature port has Metric threads.
I discovered that US pipe fittings interchange with BST with the exception that a few of my US fittings were too large to catch the first thread. The rest of them had sufficient taper to start and thread in several turns. A little Teflon tape is a good idea because one of the two has its threads cut deeper, even though the threads-per-inch is the same.
Travelover
Elite Member
Yea, sort of. Anyone remember an equation from a chemistry or physics class like PV=nRT? Basically the pressure is linked to the temperature in that bulb. So it really is a pressure gauge recalibrated to measure temperature.
Applet: Ideal Gas
California
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Oops. Paradigm mismatch. There's no thermostat.
That tractor was sold capable of putting out 17hp continuous at the pto without boiling over. If it no longer meets spec, I would put my attention into getting it back into compliance.
No T-stat!! How then does the engine warm in the dead of winter?
California
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Cardboard over the radiator.
These are rub-two-sticks together technology. Pliers and a screwdriver maintainable. Plus maybe a hammer. (That's from the owner's perspective. A lot of thought went into the design to make them so simple and reliable that there's simply nothing to fix for the first quarter century or so.)
These are rub-two-sticks together technology. Pliers and a screwdriver maintainable. Plus maybe a hammer. (That's from the owner's perspective. A lot of thought went into the design to make them so simple and reliable that there's simply nothing to fix for the first quarter century or so.)
clemsonfor
Super Member
and a if i remember right a 10, 12 and someother mm size wrench. !6 or 18 maybe on some stuff, 14 maybe for draining fluids.
For the field, pliers and a screwdriver. You would need more pins for the one you loose than screwdrivers.
For the field, pliers and a screwdriver. You would need more pins for the one you loose than screwdrivers.
OP
deepNdirt
Veteran Member
The 1700 has never run hot with me as far as I know, when first getting the tractor I flush the engine cooling system/ radiator,along with draining and changing all fluids and filters, all has went well as far as the temps for the 1 year this month I have owned it, I never have trust the idiot lights is only reason for wanting to change to a temp gauge,
plus on Friday the wife and I went out to eat and drove her SUV and it ran hot due to a leaking seem in the plastic area of the radiator, luckily the SUV has a temp gauge allowing me to monitor the actual temperature while trying to get on back home, I pulled into the next station and got some water into it, and all was saved as far as the engine goes,.... so this kinda got me thinking again about my tractor and if ever it were to run hot? I do check all fluids including water/antifreeze mix before starting it up each time, although all it would take is one time the radiator to blow and run hot and I might be out of a tractor,..... BTW a radiator for the wife's suv cost 300 bucks which sounds High, but I look at it as the lesser cost compared to a new engine,:thumbsup:
