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Greased a JD 445

14 years ago

I think I greased everything on my JD445 that needs greasing. Does anyone think they know if a grease fitting that I might have missed?

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Comments (9)

engine_tech
14 years ago
Driveshaft between engine and trans. I think there is one at the back u-joint...I think.
User
Original Author
14 years ago
Good one. I forgot about that one.
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It will be the hose leading FROM the tank TO the fuel injector body. If the hose in question does in fact have leakage inside the fuel tank, there will be no pressure in the hose. You need to find a diagram describing which hose is connected to the pump, or you "might" be able to shine a flashlight into the tank to see the pump and hose for positive ID. The pressure is supposed to be "held" in the line by the fuel pressure regulator valve. The "pressure regulator valve" is situated in the "return to tank" circuit of the fuel system piping. The pressure regulator maintains a "head of fuel pressure" in the side of the fuel plumbing where the injector(s) are. This pressure is what "shoots fuel" out the injector nozzle during injection. If the pressure hose leaks right back into the tank from the line on the pump, you have lost both pressure at the injector, and volume of fuel as well. The symptoms could even mimic a clogged fuel filter or a pressure regulator valve that is stuck open, or has a defective "pressure spring". It is always a good idea to wear safety "goggles" of face shield whenever you work on fuel systems. Even if you don't get sprayed, a splash in the eye is painful and/or harmful. And No Smoking, please.
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With a liquid cooled engine, you could adapt an auxiliary cab heater pack a lot more easily than trying to "duct" or pipe heated air from the radiator. This would require that you be able to "tap into" the existing cooling system at 2 points on the engine (1 point for supply to heater and 1 point for return from heater). Using the engine as a source of heated liquid this way is identical to the typical automotive cab heater technique. Correctly "plumbed", the added auxiliary heater will draw coolant from the "radiator bypass flow circuit" (which allows continuous flow of coolant through engine when the thermostat has water blocked from flowing to radiator). ALL the other points mentioned by engine tech still hold true. The issues of current draw and battery capacity could be mitigated by adding an extra battery....charged by a battery charger during "off time in storage". This extra battery could feed only the auxiliary heater or you could attach it in parallel to the tractor battery. Auxiliary "add on" heater packs are available from aftermarket sources which are aimed at truck camper bodies and/or additional heaters for cabs of trucks and RVs.
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There are maybe six bolts holding on the fender deck. Two under the seat, two holding the floorboard to the fenders, and then two at the front. This is my best recollection. Then you can get to the tank.
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Comments (7)
Well now, I don't know from personal experience what you should be looking at if you have the pump removed from the tank. But I do remember reading a couple of threads on this board where JD owners of 425 and 445 models had a defective fuel hose inside the tank. The hose would develop a split and simply dump the pumped gas right out inside the tank. You have a pair of hoses that connect to the tank, one is for fuel delivery to the injection site, the other hose is for excess fuel to return to the fuel tank. There has to be some hose connection provision in the fuel pump/tank arrangement to carry the pumped fuel to the engine. Hopefully one of the John Deere gurus will chime in here and give better specifics. I tried a short search of the thread archives to find the other threads where I read this info (maybe a year or so back) but have not found either of them yet.
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runny214
14 years ago
How about the nut behind the wheel?
bushleague
14 years ago
Largest contributor to accidents is a failure in the linkeage between the steering wheel and the brake pedal.

Just picked up a really nice 520-H off of C/L, burned off the owners manual showing 14 fittings and their location. Last time I saw a vacuum guage was in my Dad's '64 Grand Prix!
User
Original Author
14 years ago
The nut behind the wheel is not greased while greasing or cutting.
larso1
14 years ago
"Last time I saw a vacuum guage was in my Dad's '64 Grand Prix!"

Don't mean to hi-jack this thread, but there was hardly a car prettier and more exciting (for the time) than a '63/'64 Grand Prix with a 389 and Tri-power carburetion. My buddy's dad had one and we would go cruising in it when he was gone on travel! Check out these options (and try not to drool)....

Description Description
Air Conditioning Sports Wheel Covers
Console (incl. tachometer) Aluminum Hubs & Drums
Instrument Gauge Cluster
Luggage Carrier Hydra-Matic Transmission
Remote Control Mirror 4-Speed Manual Transmission
Power Brakes
Power Seat 389-cid/330-hp V-8 (Tri-Power)
Power Tilt Bucket Seat (driver's side) 389-cid/348-hp V-8 (Tri-Power)
Tachometer 421-cid/350-hp V-8 (Tri-Power)
Cordova Top 421-cid/370-hp V-8 (Tri-Power)
Ventura Trim (Catalina 2369, 2339, & 2347)

{{gwi:334977}}
mownie
14 years ago
Beautiful yes. Came with synchromesh Fuel Gauge/Speedometer cluster. As the needle on the speedometer went from left to right.....the needle on the fuel gauge went from right to left.
larso1
14 years ago
Yah, but at 18.9 cents / gal. back then, gasoline was never an issue, not even for a kid with a paper route like me.
mownie
14 years ago
OK! You got me started now. Pontiac....great big powerful muscle car Pontiac! We all lusted for a GTO in the '60s.
We even had a few quick retorts for people. If someone asked (especially if it was a girl asking) what GTO "stood for", we would reply, "Gas, tires & oil", and a lot of them." And when somebody that actually owned a GTO would begin "braggin", we would say, "Yeah, yeah, yeah, we know it's real fast. The only thing it can't pass is a gas station."

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