Hi guys, been a long while since I’ve visited this site. I am about at my wits end with my 660. Long story short earlier this summer the temp light came on which had never happened before. I shut the machine down, but had to get back to the farm as I was six miles away. Needless to say I would just run a while, let her cool down, then repeat process till I got home. I haven’t had time to address the issue till recently. I found that the radiator was dry. Noticed some oily residue by the water pump and after a search found that it probably puked coolant out because of a seal leak. Also inspected the thermostat and it was toast. So ordered parts installed them topped off with coolant and now it just pours coolant out of the weep line from the water pump! I figured it may be air locked so I bleed it and bleed it to no avail. What is weird is it won’t even pull coolant from the resivoir when it is puking coolant from the weep line. I thought maybe I have another bad water pump? But after doing some additional research I would say it is very likely I have blown the head gasket. Looking for some opinions here before I try and tear into this. How hard a project is this? I am fairly mechanical but not an expert by any means. I do have a Clymer manual but the section on the cam shaft tensioner is freaking me out a bit. Also I wonder if I haven’t also warped my head. My Grizz has 1100 hours on it so I don’t even know if it’s worth messing with or not. Could be many parts need replacing but what stinks is this is the first real issue I’ve ever had with it outside of some rear diff seals. Should I take to the shop or try this myself. Looks like a job.