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Discussion Starter #1
I bought a mid 1990s 6018 last year. It had sat for a bit without being run. Over the course of the last year, most of the hoses have ruptured. I?ve now replaced almost all of the hoses. I?m kind of picky about my equipment and believe I?m down to one minor source of oil leaking. The cap on the reservoir blows out very small droplets that accumulate on the tank and drip/cause a bit of a mess to attract dirt etc. Any suggestions on a remedy? The cap looks original and the plastic ?baffle? in the cap appears to be intact.
 

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Hemlock Case Guy
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315 Posts
It is not a problem with the cap.

First, is your tank overfilled? Do you know how far down the oil is supposed to be? If I remember right it is 4". You are using 15w40 motor oil, right?

You are introducing air into your oil. Your oil should stay solid when in use and not get foamy.

The most likely way is the suction hose. Have you replaced it along with using a quality hose clamp? Radiator style clamps are not to be used. A Case/Ingersoll parts dealer can sell you what you need if that is the issue.

Another possibility is the inlet port of the pump is leaking. This has happened. Most the time it happens especially if the pump is not dead still. The suction side if subject to vibration or if the pump has been allowed to rotate in the past strains the inlet.
 

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Discussion Starter #3
Thanks for the reply.

1.) I don't believe the tank is overfilled. My notes showed it should be 2-3 inches below the neck and I'm in that range. I can't find my manual at the moment, but I will double check.

2.) I'm using 15W40 motor oil.

3.) I haven't opened it up to see if it is foamy after running. I'll take a look next time.

4.) I just replaced the four bigger hoses that come from the tank to the pump, tank to the filter and filter to the heat exchanger. I reused the clamps that were on it. They were basic radiator style clamps. I don't have a Case-IH place close by. Any idea what type of clamps should be on there? The parts manual is a little grainy, but they look like the clamps I reused.

It will be a bit before I can get back on this, but I appreciate the reply and suggestions.
 

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Hemlock Case Guy
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Case IH is not the correct parts dealer. Salempwr.com or Barneveld are used most.

For clamps I found that McMaster.com has soft hose clamps. They have a continuous band that does not chew up the hose. They also go from a torque spec of 15 inch pounds of the common clamp to 40 inch pounds. A automobile cooling system only makes 12 psi, your tractor is 300 psi.
 

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Discussion Starter #5
Did you get the new clamps and if so, did it fix your issue? I've had the same issue and got sidetracked on trying to fix. Just curious how it works out for you.
 
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