Trying to get a 966 back in full working order after many years of neglect... I resleeved it after having one of them cavitate through, and it was running good, except it would pressurize the cooling system slowly until it overcame the cap and puked it out. After the engine would be warmed up, it would be fine, it only did it on cold start up. It also would have a little coolant in the cylinder every time on cold starts. My dad pulled the head back off, and got it flat checked and crack checked (like he was supposed to do last fall when I resleeved it...) and it checked ok. Courtesy of the advise of some of the users over to the diesel garage, I had it taken in to get the injector sleeves done. Lo and behold, the cylinder showing problems had a bad injector sleeve... Did them all just for prevention if nothing more.Still plenty more, just found the shifter support bearing is past shot, so I have it so we can at least run it, then sometime I'll have to tear into it more.