Will someone please post a picture or pictures of how the idler pulley engages with the engine belt of this particular model and how the idler spring provides the needed tension? I got this mower used and the belt was slipping so the drive disc was only spinning occasionally. The idler spring was broken also so I bought a new belt and spring. However, I'm not even sure the previous owner even routed the belt properly. I really need to see how the idler spring provides tension. I feel kind of silly because I can't figure it out. Please help. I've looked all over the internet and I can't even find a photo of the underside of the V212P4 Snapper self-propelled mower. Thanks.