JD 4020

wide axle · Dec 25, 2017

On top of the oil cooler the elbow that comes out of the cooler and goes back into the head has come loose. How do I put the elbow back in the cap off the cooler?

wide axle · Dec 25, 2017

This is on a 4020

Bob · Dec 25, 2017

That's a good question, I would have thought it threaded in with pipe thread, but it appears that the fitting is just pressed in, as it's not shown as a separate part. So, I suppose it's like the tubes, fittings, or hose barbs pressed into various waterpumps.

Over $200 for a new cap and elbow!

At this point, I'd clean it up and see how tight it fits.

With it removed from the oil cooler, clean it with solvent, and clean and rough up the fitting and hole with a wire brush, sandpaper or sandblast it, then stick elbow back in place with Loctite Sleeve Retaining Compound (IF it's a pretty tight fit) or a good quality epoxy, if it fits a bit loose, and allow to cure, then clean the assembly THOROUGHLY before reinstalling to make sure no abrasive or other debris gets in the cooling system.

JD 4020

wide axle

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wide axle

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Bob

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