3000 Diesel Fuel Leaks

winslo · Apr 22, 2023

My story is that a feller at work had a 3000 that did not run. Last summer I had spare time, so I asked if I could try to get the tractor going again, and yes, I could. So I tried: new battery, battery terminals, fuel. Long story shorter, could not get it running. Forward to about a month ago or more... I says to the feller, tell me how much you want for the tractor and all the stuff with it. So, time passes and a few weeks later I get a figure for the tractor and its stuff. Made the deal, hauled it all home, and now it's yard decoration. Almost. Got the battery out and charged it. Watched a zillion youtube videos on cranking 3000 tractors. Replaced fuel tank valve or cap, fuel lines, engine oil. And tried again to start it. Finally watched the right video where the guy says the tank fuel level has to be above all the stuff below it. Added more fuel and presto, fuel at the fuel filter, injection pump and injectors. Bled lines and immediately get smoke at the stack. Hank and Wiley got nothing on us. Bled again and gave a shot of ether and there she went. Battery was dead by this time, and yet had just enough fire to crank on its own and run fine. And now there are fuel leaks. Apparently in or around the fuel pump, lift pump. Tank valve is off, still get several drops per minute from the primer lever fuel pump area. Catching drips in a bucket.
Suggestions?

Nouveau Redneck · Apr 22, 2023

Hi, and welcome to MTF!

They used two different injection pumps on the 3000 over the years. One was the Simms in-line pump (lines going to the injectors connected to the pump in a line on top of the pump from front to rear) and the other was the CAV rotary pump (injector lines connected around a round section near the rear of the pump). I don't remember either having a primer handle. Some later models had a Simms pump with a primer handle. Perhaps the original injection pump was replaced with a newer one at some point?

MARK (LI) · Apr 23, 2023

Hi winslo

winslo · May 1, 2023

Nouveau Redneck said:
Hi, and welcome to MTF!

They used two different injection pumps on the 3000 over the years. One was the Simms in-line pump (lines going to the injectors connected to the pump in a line on top of the pump from front to rear) and the other was the CAV rotary pump (injector lines connected around a round section near the rear of the pump). I don't remember either having a primer handle. Some later models had a Simms pump with a primer handle. Perhaps the original injection pump was replaced with a newer one at some point?

winslo said:
My story is that a feller at work had a 3000 that did not run. Last summer I had spare time, so I asked if I could try to get the tractor going again, and yes, I could. So I tried: new battery, battery terminals, fuel. Long story shorter, could not get it running. Forward to about a month ago or more... I says to the feller, tell me how much you want for the tractor and all the stuff with it. So, time passes and a few weeks later I get a figure for the tractor and its stuff. Made the deal, hauled it all home, and now it's yard decoration. Almost. Got the battery out and charged it. Watched a zillion youtube videos on cranking 3000 tractors. Replaced fuel tank valve or cap, fuel lines, engine oil. And tried again to start it. Finally watched the right video where the guy says the tank fuel level has to be above all the stuff below it. Added more fuel and presto, fuel at the fuel filter, injection pump and injectors. Bled lines and immediately get smoke at the stack. Hank and Wiley got nothing on us. Bled again and gave a shot of ether and there she went. Battery was dead by this time, and yet had just enough fire to crank on its own and run fine. And now there are fuel leaks. Apparently in or around the fuel pump, lift pump. Tank valve is off, still get several drops per minute from the primer lever fuel pump area. Catching drips in a bucket.
Suggestions?

winslo · May 2, 2023

Well, first off I should say I have the Simms injection pump, and it has an attached lift pump on it. Closer examination of the said lift pump revealed that too many wrenches loosened and tightened the top fuel line exiting the lift pump to the point that the pump threads for that connection are pretty much toast. A source of air for the system, since I sat and watched the air bubbling out between the fitting and the line. So, a new lift pump is on the way. And another thing, I wish these old tractor parts vendors would find a better source for their stuff. A tank valve tap brand new from Tractor Supply was given two "Do Not Buy" reviews, which I read after I bought the part and tried for hours to install it in the tank. Returned it to the store and received a refund. Then ordered another fuel tank tap from an eBay vendor, received it, installed it and thought all was good. Until the leaks began in the fuel lines and I tried to shut the fuel off. And discovered that the new fuel tank tap was worthless as a shutoff control, even though it installed smoothly in the tank and connected smoothly with the outbound line; what a waste. So here I am two for two and waiting for the new lift pump for my Simms injection pump. I know there's gonna be a brighter day.

3000 Diesel Fuel Leaks

winslo

Nouveau Redneck

MARK (LI)

winslo

winslo

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