JDcrawlers Messageboard

Have you got a local radiator shop you have used? If not check with some local contractors and see if they have someone they recommend. I would have it checked and get an estimate before I just write it off to getting a replacement. A good shop should be able to re-core it if the tanks are good and ...

Thanks Lavoy. R1PERK, I apologize for my error in my earlier post; your 550 oil cooler is in the bottom tank, so yes it could get coolant into the transmission oil. Are you seeing oil in the radiator? Often the oil pressure is higher than radiator pressure and would force some oil into the coolant.

For a 550 you might get more responses to your problems if you move to the late model support forum. There may be some similar cases over there that might help you diagnose this. It sounds like you may have a couple issues, an engine cooling system issue and a transmission issue. The bubbles in the ...

It was good it only went to 7 psi. You noted in your first post that the previous owner said he had installed several caps to no avail. Not all parts store interchanges are right, you may need to get a John Deere cap to get the right length. It is possible the length of the replacement caps have bee...

From info I find the cap (AT165587 sub for AR27868) is supposed to be 7 lbs. The allowable range is 6-1/4 to 7-1/2 lbs. for a 450B and about the same for my 450E. You can put the tester on and run it but remember to watch it as the cap is the relief valve. The tester won't relieve, you could blow so...

Some things to look at. A stuck thermostat would likely show over heating, if you gauge is working right, before the coolant was pushed out. Check with a temp gun or thermometer. The radiator could have restricted flow internally causing it to push coolant out. A leak on the lower radiator hose migh...

Try Maine Tractor Crossing in New Canada, Maine if you haven't. Scott shows some 2010s parted out on his website.

Do you have a PTO shaft which would have hooked to a drive unit, or are you referring to the input shaft of the gearbox being 1.125" with a 1/4" key way and a hole through it? That is the arrangement on my unit's gearbox. If that is the case you need a PTO shaft with a plain yoke on the generator en...