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| Our 9600 was always hard to start. We would plug in when colder weather, use starting fluid, etc. Issue always seemed like fuel. Once running it runs well. Could shut down after running all day and may still need to prime fuel for it to start. Read on here for solutions. We were still fighting it: changed a couple o rings, changed hand pump, etc. That is part of the background. Other was the hydro light would come one and you could tell hydro was getting weak. We replaced hydro about 100 acres ago and everything seemed fine.
New problem. Combining corn and temp light and buzzer came on. Temp gauge said it was hot. I let sit with engine running. It did not seem to cool down. You could feel it was hotter back by engine compartment area than normal, but other than that everything seemed the same. Engine did not lack power or seemed like anything was wrong. Temp gauge stayed hot but then would "jump" down to below hot, then you would move it would jump back to hot. Radiator and all coolers seem clean. Drain oil tube was blowing vapors out. I unloaded it, parked it and shut it down. Nothing really stuck out for visuals. Radiator did blow fluid out of overflow hose. Helper came to look at about 30 minutes after shutdown. We had to go through "fuel dance", but engine fired up and we looked over. Nothing really was noticed. I drove about 100 yards, started combining, temp gauge spiked and warning light/buzzer on. We went back to engine compartment: vapor down oil tube, radiator blew some out of overflow hose. We drove back, parked it, and shut it down.
Next day we looked situation over. Coolant level was down 2 gallons. Everything else seemed fine. Maybe oil was quart low-that I can't remember. Nothing that big noticed. Opened radiator compartment and looked at. Swung open cooler and everything is clean. We got idea maybe it was radiator cap. We replaced. Had our "normal" start procedure: had block plugged in, turned key on so electric fuel pump runs, pump hand pump, shot of starting fluid. Combine started and I went to combining. Watching gauge and machine seemed to run normal temp, maybe even a little cooler, but outside temperature is dropping. Got on second bin (about 30-40 minutes). The temp warning came on and temp gauge shows hot. I stop and go back to engine compartment. Nothing out of ordinary, but it is warm. Vapors from oil tube and it was spitting oil. Again, unload, park machine, drive it to parking spot and shut it off.
Day 3. We had thermostats and gasket on shelf, so helper wants to change that and try. We only need about 2K bushels and drying bin will be full. I told him to go ahead and change. I think it is more than that, so I ordered a water pump.
Day 4. Weather was fair. We still have not gotten water pump but decided to fire up machine and see if she overheats with new thermostats. Machine was plugged in, we let electric pump run, pump by hand, had charger on batteries. Machine will just crank and does not seem to want to try and fire at all. Fan in cab that constantly runs speeds up when charger is switched to "start". It also seems after cranking that RPMs slowed down, so we were going to switch batteries. Batteries are testing good, so we went around cleaning all electric connections. Nothing. We changed fuel filter and water separator. She still will not try and start.
In past seasons we have had problems with this machine and fire/heat. 1. Once a belt broke and sliced through radiator hose. Instant overheat and had chaff smoldering. 2. Had belt break on radiator screen, overheated. 3. Oil line to turbo got a pin hole leak and spayed oil over exhaust, caught fire, but I put out, fixed burnt wires next day and were back to combining. Compared to those situations I find it hard to believe 15 minutes of running hot killed the beast.
I guess I bring up the past because we have had major issues and really never had an overheating problem and not really an oil usage problem. This new problem of overheating developed. From time to dump to park was at most 15 minutes. It seems strange that this situation would cause engine not to start, or ruined engine.
I am going to have someone come and do a compression test. Anyone have any ideas? I am hitting my level of expertise of mechanics.
If I ignored the overheating part, I wonder if we are dealing with a fuel injector pump issue. I looked at both wires coming out of it and they seem in good shape. Pump and line going out are covered in "crop dust" and "mud". Is this sign of line dampness/leakage and it could be sucking air?
I guess what me has concerned over the compression issue is I have never had an engine not respond to starting fluid. I am running key, but asked helper and he said he was giving it a good shot (5 secs). We took both air filters out. They were clean, but we took out to try again to make sure starting fluid is getting there.
It will crank over and at times seems like it wants to start. It seems RPMs go from fast then slow down, then speed up to where it will almost start...
Any guidance appreciated. Thanks. | |
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JD 9600 combine will not start
