Bobcat 331 hydraulic noise

Posting this to hopefully get some help in diagnosing what the problem / issue might be. This noise developed when curling the bucket on my Bobcat 331. I am not sure it's related but "around" the same time I noticed the boom bleeding off over night when I would leave it up, might be totally separate issues though. 100% new when it comes to hydraulics of any kind...so use small words when replying with possible causes if you can...lol Thank you.

[@michaelduran8392]

I have a bobcat skid steer 440b the small one. I put a Harbor Freight engine it as it came without one. I do have step by step videos how to but now, I have the same whining noise just like yours and I am stuck not know what it its. I can not find any videos and still its been a half year later. If you do find out please make a video it would be so helpful. Thank You

[@AnalogX64]

When I look at an engine, and everything else attached to it, it just looks like a jumble of mess to me 😁 and off topic do you still have that Starling that was talking?

[@user-qq4qq3si9l]

Какой поворотный двигатель стоит на вашем эксковаторе, номер?

[@brandon1566]

Did you figure out the issue

[@marianlaza5088]

what is the problem

[@marianlaza5088]

??