4050 question
- Thread starter Ben Hucks
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Tx Jim
New Member
Did you try pouring cold water on the warm (non-turning) inj pump before attempting an operating temp of engine start to see if it would start quicker????????
Used the tractor a good bit this morning putting hay out. I worked it a good bit harder than I had to on purpose. Got back and shut it off and it would not start back as usual. Got the water hose and ran water over the pump for about 30 seconds and it fired right back up. I guess. That means the injector pump is worn out right?
Tx Jim
New Member
Yes inj pump needs attention.
jagyzf
Gold Member
Personally, I don't recommend puting cold water on a hot injection pump whether it is running or not. The injection pump parts run on a very tight tolerance. If the pump is hot and all parts are expanded due to heat, when you put cold water on it, The outer housing will contract from the cold and could cause the internal rotating parts to "seize". This can cause injection pump driveshaft to twist off and ruin the pump.
Tx Jim
New Member
jd110
I've personally never witnessed an inj pump seized from putting cold water on a "non-turning" inj pump.
Now I have a question for you. How would you go about diagnosing that the head/rotor have too much clearance to distribute the fuel for cranking in the operating temp mode without putting water on pump????
Tx Jim
New Member
Putting water on a turning inj pump can seize head/rotor just a jd110 stated.
Txjim, I have always just observed lack of smoke from exhaust while cranking. You also can connect injector to fuel line on outside of engine and observe while cranking. You know fuel is being delivered while cold, and if no fuel is delivered when hot, head and rotor are worn. I also have never witnessed a pump seizure when not turning, but I don't feel it is worth the risk of damaging a possibly good pump.
Ok..... Got the pump installed and have a few questions. I know the timing on the pump in firing stroke TDC on front cylinder. Is says to pin the crank in the manual but shows no description of how to do this. We took the injector out and used a screw driver to tell when the piston was as the top and made sure that both intake valves were closed. We had the valve cover off too. We had the timing marks lined up on the injection pump too. My two questions are..... Does anyone have a pic of where the hole is to access the flywheel to pin the crank and also with having all the fuel lines loose as well as a dry injector pump. What is the best method to getting everything bled back out. thanks for all the help with everything. Just stumbled across the site while researching what could be wrong
Tx Jim
New Member
To time engine to TDC there's hole in block(parts key # 30 is plug) on RH side to insert a pin where block & clutch housing are mated. On purging air from fuel there should be a handle on lift pump on RH side to operate to pump fuel into fuel filters and air out.
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Worked today on the tractor and it is back up and going. Seems to be a lot stronger but it was getting late when I finished and still had some feeding to do. I will put it to the test tomorrow to see if the slow cranking has been fixed. Thanks for all the input txjim. That drawing made getting it timed a lot easier.
