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Its the 4th of July and Farm Jeep is heading to the county fair!  We’ve been invited to be a part of the antique machinery exhibit, and as the only farm jeep entry, we are sure to be a winner.  We will show off our ribbon later.

Thanks to those of you who have given us nice compliments and good suggestions for moving Farm Jeep forward. Over the next few months we will be incorporating those changes.

Meanwhile – one more try

We have, as recorded here in gruesome detailed, been chasing leaks and problems with the Newgren lift. The only possible remaining leaks had to be on top of the reservoir.  That meant lowering the lift one more time.   For future reference, we took notes and lots of photos of the disassembly process. We plan to post them at a later date.  For now, we will simply summarize the process.

Removing the lift or just lowering as in this case involves a few simple steps.  You need to remove the PTO shaft and the rear gear box.  Next you need to support the lift frame and remove the bolts at the front and all the bolts at the rear.  Then lower the unit, with all the hoses still attached.

The strange looking object pictured here is the jack we use to raise/lower the lift.  We took a Harbor Freight low lift transmission jack and added a “jig” made of scrap metal.  While not pretty, it makes the raising/lower of the lift a one person job.

With the lift lowered, we could reroute some of the hoses and remake connections with thread sealer made for hydraulic systems.  The lift was then put back in place by raising the jack and replacing the bolts. But before we replaced the the PTO, we decided to test the lift.

And the good news is.

The lift worked perfectly!  It lifted the 450lb plow with ease.  No foaming or pressure build up in the reservoir.  There is only one remaining problem – the lift starts to slowly drop once it is raised.  It doesn’t matter if the pump is running or not.

The bad news is that we believe we have damaged a seal in the cylinder.  During some of our efforts to correct problems, we introduced excessive pressure on the seals.  That means we will need to have the cylinder rebuilt in the “off season”.  For now, we will simply place a piece of steel between the cylinder cap and the lift block to lock the lift in the up position when we need to transport the plow for any distance.

What we have learned.

Over the years, we have tried to learn as much as we can about hydraulic systems.  Because the Newgren lift’s hydraulic system is different than modern systems, we questioned the engineering. What we have learned is that it is in fact a simple and even eloquent solution to a problem for single action cylinders.

Single action cylinders require a port or breather hole to allow air to escape or enter as the piston is moved in and out.  That port is normally open to the environment.  With the cylinder on the farm jeep just inches from the ground, it is in an extremely dirty/dusty area.  So how do you keep the port clean and open?  You design a “closed system” by using and reusing the air in the top of the reservoir. So the mystery “bleeder hose” that runs from the bottom of the cylinder to the top of the reservoir is a simple means of getting clean air in/out of the cylinder.   No dirt or dust can enter the cylinder.

So we humbly apologize to those engineers at Newgren who designed this lift system.  It was only our lack of a basic understanding of hydraulics that caused many of our problems.  We finally get it and look forward to years of trouble free operation.

Update – While preparing the Golden Eagle to sale, Barry realized that he just couldn’t do it. So Matte found a new home and the Golden Eagle will become a new project.

Here at Farm Jeep, we have focused on flat fender jeeps.  But an ad appeared on e-bay that clearly shows agricultural activities were still an important part of the new CJ5 model in 1955.

The jeep pictured in this ad may be a prototype (note the split windshield)(1), but here we are with Jeep promoting its agricultural implements.  Of special interest to us are the graphics used for the two plows.  They are identical to those used by Newgren in the late 1940s.  It would appear that the original Newgren design was alive and well.

Still a mystery to me

Whenever we have a plow question, we contact our friend Clint Dixon.  As always Clint had some interesting facts and history to help us learn more, if not solve our latest mystery.

Clint sent his own ad, staring the new CJ5.  Here is what Clint had to tell us –

Update – July 2021

Barry found himself hunting for information in Bowling Green, Ohio while doing research on a Jeep promotional movie. On a hunch he decided to again tackle the question of who owned Green Manufacturing.

Several online attempts to contact the current owners failed, but a phone call did yield a glimmer of hope. The person who answered the phone had been a long time employee, but didn’t have any knowledge of farm implements being produced. She did say that the company had been bought and sold at least a couple of times since it was Green Manufacturing.

Barry then contacted the Wood County Museum, sending them a copy of the “Greenline” plow ad showing the Bowling Green address. The next day he received a note saying that they had found information about who had purchased the original Green Manufacturing and provided contact information.

Here is what we have learned from Jeff Snook, former owner of Green Manufacturing and now owner/operator of Snook’s Dream Cars (www.snooksdreamcars.com):

Hi Barry,

My history with Green Mfg. did not include any Jeep connection, but here is what I remember hearing.

Bob Green, founder of Green Mfg. somehow was connected with Jeep in the 50s I believe.  I recall hearing stories of him making implements.  Don’t recall which, but it looks like plows based on your literature.  I do recall he made post hole diggers for Jeeps as we continued that business into the late 1990s.  But the ones we made were sold through farm implement dealers and not Jeep related.  They were all 3-point hitch mounted.

 We continued using the Greenline name on our posthole diggers and other implements (wagon gear & scraper blades) until I sold the business.  Green Mfg also made hydraulic cylinders (turned out to be the largest part of our business) and I’m sure they evolved as part of the Jeep 3-point hitch connection.

Here is the Green Mfg. ownership history

1968 Robert Green sells to Wilde Manufacturing (Michigan company)

1969 William Snook hired by Wilde to run company

1974 William Snook buys company from Wilde & Jeff Snook comes on board

1989 Jeff Snook buys company from Bill Snook

1998 Jeff Snook sells company

Bob Green stayed on for 5 years as sales manager once he sold the company.  He was an old car guy (like my Dad) and was involved in making overdrives for Franklin automobiles.  As far as I know, he continued in the overdrive business until he passed away.

As shown, I sold the business in 1998 and all the records are gone, along with most of the folks that were around during that time.  If I can find any old employees that might remember, I’ll send them your way.

At last!

Now we have some of our questions answered. We will continue to search for more information, but are happy to know that Robert Green continued to sell the fine Newgren line of implements.

1. Ventilating windshields were an option on the early CJ5, not an indication of a prototype.

On a recent road trip Barry made a couple of Farm Jeep related finds.  The first was a planned visit to the Monroe County Historical Society Museum in Monroe, Michigan.  Inside this excellent museum is an exhibit dedicated to the Monroe Auto Equipment Company (MAECO).  This is the company that made the Monroe hydraulic lift for farm jeeps and still makes Monroe shocks.

The exhibit’s curator is retired MAECO engineer Jerry Wittkop.  Jerry has assembled documents, photos, advertisement materials and samples of  some of the many products made by this 100 year old company. Products ranging from the world famous shocks to golf balls.  And of course, there is the Monroe hydraulic lift.  In addition to a lift housing, the display includes a picture of the farm where jeeps equipped with the lift were tested and demonstrated. There is also a Monroe tractor seat on display.

Jerry’s long career and personal involvement with the family that owned the company (until its sell to Tenneco Inc. in 1977) has resulted in a display that is informative beyond the normal corporate history.  We had always wondered how Monroe ended up making hydraulic lifts for the jeep.  As Jerry explained (and demonstrates through the exhibit), Monroe made products that could make use of their expertise in hydraulic systems.  Some of that expertise came from the company’s work with World War II tanks and aircraft hydraulic systems.

If you are in the Detroit area stop by and visit the museum and the MAECO exhibit.

Barry and his wife Paula like to take interstate trip breaks by stopping at antique malls.  Barry likes to search for jeep related items.  Most of the time that means old magazine ads.  The same trip to the Monroe museum found them stopping at a mall in a small town off the interstate.  Barry quickly found a booth with a nice selection of automotive ads.  In among the ads was a Willys Overland financial report for the period ending March 31, 1946.

We have posted selected pages of the report here. The most interesting parts of the report are in the narrative, including the fact that no jeeps were produced during the final 3 months of 1945 because of strikes at suppliers.  There is also the disclosure of the purchase of the Wilson Foundry & Machinery Co., the supplier of Willys engine blocks.

The report also discusses the company’s design philosophy and introduces the lineup of the CJ2a, wagon, pickup and the “delivery sedan.”  An interesting look into the early days of the CJ.