Ingersoll 4020

I just got an Ingersol 4020 lawn tractor. If you are familiar with these tractors then you know how the hyd. pump shaft mounts with two set screws to the engine and more or less "floats" out there??/!!! Question, How much "wobble?" should I get when it is running???? Thanks, Ed

First off, your Ingy is not a lawn tractor. It is a full-fledged garden tractor in every sense of the word. Lawn tractors weigh about half as much as that 4020 you have.

Yes, the pump does "float" on the end of the engine's bolt-on stub shaft. It will move around a bit but it should not shake violently nor bounce up and down constantly. Without actually seeing the tractor, I can't tell you if your pump is moving more than it should or not.

You can go to the Ingersoll website and see if there is a bona-fide dealer near you. If so, then take it too him and get his mechanic to give you and opinion.

Hey Tom a question is the 4020 a "400" series spin off with a 20 hp motor am not up on Ingersoll tractors #'s thanks Tom

In order to answer your question, a history lesson must come with it. LOL

J.I. Case owned and operated the Outdoor Power Equipment division that was located in Winneconne, WI and produced the 200 and 400 series of garden tractors. In 1983, John (Jack) Ingersoll (a relative of the Ingersoll-Rand people) bought that division from Case. It is alleged that there was an agreement for the 200 and 400 models to continue being produced and sold through the existing Case dealer network.

Everything seemed fine but as we know, the name on the tractor slowly became Ingersoll by 1986. I believe that this was due to Case buying IH's ag division and taking on a slew of IH top brass as part of that deal. I see it that the IH execs screwed up that deal and Jack was forced to go it alone. That's my opinion but it is not based on fact.

What is fact is that Jack was losing his dealer base and he had to try and come up with an "improved" tractor line. So, in 1988, Ingersoll introduced the 1989 4000 series to replace the 400 series and the 3000 series to replace the 200 series. They also brought out the 6000 series to replace the 600 loader tractor and later on a 7000 series loader with 4 wheel drive.

The largest hp engine with the CASE badge was 18 as the 448 model or the 648 loader or loader/backhoe. But when the 4000 series were rolled out, you could buy a 4016, 4018 or 4020. These tractors looked like the older 3 digit models but with a couple of radical changes. They spun the engine 180 degrees in the chassis.

Instead of the crank stub driving the pump, an electric PTO clutch was now sitting on that shaft. Instead of the traditional mechanical PTO clutch sitting on a shaft bolted to the flywheel, a new shaft on the flywheel now powered the pump. Of course, when you make the engine do a 180 in the frame, you also end up with the engine rotation being reversed.

This meant that Ingersoll had to use pumps designed for the opposite rotation. They also had to make the mower decks discharge to the right instead of the left plus the snowcaster had to have changes to the belt drive so it would spin in the correct direction.

So to answer your question..... yes, the 4020 is a 400 series spin off with a 20 hp engine. Some 4000 models came with the traditional Onan engine but the EPA's stringent regulations killed that motor off and Ingersoll then used Vanguard's. Today, they are still using Vanguard engines up to 23 hp. Ingersoll's are a high-end garden tractor with a unique line up of hydraulically powered attachments. You hear people say "They just don't make stuff like they used to, anymore." Well, Ingersoll's are still being made today with the same sort of strength that Case designed into them back in the sixties and seventies.

The hood and fenders are steel. The front and rear axles are cast iron. They still have a ladder-type frame that uses structural steel to make it. The decks use steel plate that is bent and welded instead of stamped out on a press using a die. But of course, the price tag is also commensurate with the quality.

The company is alive and well in their new facility in Maine. The parent company is now Eastman, a firm that is well-known for its HoverMower rotary mowers that use no wheels because they float on a cushion of air.
Ingersoll

Tom, I am sorry I called my "garden" tractor a "lawn" tractor. I am well aware of the differences. I got it to replace my 448 that I have had for several years, I need to switch the three point hitch over to the 4020 when I am sure this pump problem is OK. Although the 40 20 looks like it has been used quite a bit with 1000 hrs on the meter it runs real strong and I believe the engine has been apart (new gaskets) but I don't know the extent of the repairs. I will try to find local Inger. meck to take a look...I had no luck in trying to center it better.....Thanks, Ed

There really is no such thing as "centering" the pump. The pump slides into the coupler and you tighten down the set screws. So if your pump is jumping around, then there is a problem that must be found and corrected.

Maybe the pump shaft is bent or damaged. Perhaps it's the coupler or the shaft that comes from the engine flywheel is bent. It doesn't take much of a bend to create a real problem and you need someone who has a dial indicator mounted on a magnetic base to check the runout of the shaft.

I have a friend that bought a Massey (made by Ingersoll for Massey) that had this problem and it drove him nearly crazy trying to cure it. His was so bad it was actually breaking the coupler.

You may have to pull the engine out and take it to a machine shop for the run-out test.

Tom thank you for that informative post and it is good to know Ingersoll is still around thanks again Tom