I started seeing hydraulic fluid on the garage floor under by BX 25. I thought it was coming from one of the hydraulic lines under the floor so I removed the floor board on the BX 25. None were leaking but I did find hydraulic fluid leaking at the front loader valve. I tighten the bolts which slowed done the leaking quite a bit. So my questions are how tight can you make those bolts on the loader valve? Is there a rebuild kit for the loader valve? Are there gaskets and/or o rings inside the loader valve? A new one costs $518. Thanks.