466 connecting rods

4010 puller · Apr 18, 2018

Hi guys, on a jd 466 engine out of a 4840 using a
John Deere rebuild kit. What's the easiest way to
press the bushings in seeing how they are tapered
and not straight?

Do the bushings need honed to fit the wrist pin? It
appears the wrist pins are tight and won't fit the
bushings.

Thanks

matthies · Apr 18, 2018

Deere made a special tool for those. We just sent them to the machine shop when I worked for Deere and they took care of it all.

J. Schwiebert · Apr 18, 2018

The pin bushings need to be honed to fit. Clearance is normally a couple tenths of one thousands. You should have the rods checked and if the shop has the equipment have the bushings installed and if they are like an old Cummins have them bored to the correct center to center distance.

David G · Apr 18, 2018

They need pressed, an honed in a jig that does them square, best to take to machine shop with the equipment.

David G · Apr 18, 2018

As other poster stated, I would get the rods check for roundness and probably replace bolts.

Cliff Nelson · Apr 18, 2018

Special driver for the bushings. Have machine shop hone to fit and check the crank end of the rods for size and round, resize if needed. Always replace the rod bolts and tighten using updated procedure.

EP · Apr 19, 2018

They're 2 types of bushings borable and honeable. The honeable bushings only need to have a couple of thou taken out. The borable ones give you usually .020 to .040 to remove. That way you can correct rod length. A different machine is needed for this process. That needs to be done especially if the big ends have been reconditioned once or more times. If the bushings are from Deere they are honeable type. I have made drivers to match the bushing shape for installation. I definitely agree the big ends should be torqued and the housing bore size checked. They loose their shape over the years.

Al Baker(pumpman) · Apr 19, 2018

I built a tool for pressing the bushings in and out by taking an old wrist pin and heating it up with a rose bud until cherry hot. I then let it cool slowly. This will soften it. I then put a few beads of weld on the narrow side and wide side of the pin where the bushing would hit. I finished it up on a lathe with two steps. I have used it many, many times now. I am sure a store bought might be better, but this works just fine. You do have to use a hone to size the bushings after you press them in. I also put some red lock tight on them before I press them in. Al

466 connecting rods

4010 puller

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matthies

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J. Schwiebert

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David G

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David G

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Cliff Nelson

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EP

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Al Baker(pumpman)

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