I got the o-ring out in pieces, but in doing so the check valve and spring fell out. What holds in in, the o-ring? Anytips in reinstalling it. I am going to the Harley shop tomorrow to see if I they have the parts you mentioned, and if they don't the John Deere can order them for me. Pk of 25 for less than $6. Thanks in advance for any info. Norm