2018 - Volume #42, Issue #4, Page #11[ Sample Stories From This Issue | List of All Stories In This Issue | Print this story | Read this issue]
Reverse Pto For Engine Work
“It does a neat job of breaking in a newly overhauled engine,” says Eddy. “You can leave out the injectors and spark plugs, yet be able to turn over the driveshaft until you know you have oil pressure and get the cylinders lubed without ruining an engine job.”
A direct connection would result in the second tractor shaft turning the wrong way. His reverser uses 2 gears left over from live power units in older IH tractors. Eddy lined up the gears and sandwiched them in between 1/4-in., 4 by 5-in. angle iron.
Each gear has a splined shaft. One shaft slips over the pto shaft on the drive tractor. The second shaft connects to the powering tractor with a tumbling rod.
“The angle irons make it easy to clamp the reverser to the drawbar,” explains Eddy. “Because tractors are different, you have to adapt as you go. The key is to get it secure. I usually rig it up with wood blocks and C clamps on the drive tractor. I had it come loose once, and that wasn’t good.”
Eddy likes the fact that he can start an older hand crank tractor without the crank. Just put in the plugs and use the reverser.
“You do need to hit the clutch to disconnect as soon as it starts, as the engines may run at different speeds,” says Eddy.
The reverser doesn’t require much maintenance. Eddy occasionally lubricates the gears with high temperature grease.
Once it is in place, he will run it for 20 to 30 min. on a restored engine to fill up the oil filter, oil lines and break in the engine.
“I used it recently on a 2236 McCormick,” says Eddy. “It is a big, heavy engine, and I ran it for an hour and 45 minutes. I’ve even used it on little hit and miss engines. It is really handy.”
Contact: FARM SHOW Followup, Loren Eddy, 23705 497th St., Centerville, Iowa 52544 (ph 641 856-2223).
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