Fuel in coolant
Ok guys here is how it all went down. Two day ago I see some white smoke comming out the tail pipe. As I start to get over it starts knocking and white and black smoke start dumping. I get a 1/2 of block to a pull out and shut her down. Get truck to the shop and its hydrolocked. Pull the glow plugs and start to release the pressure and the #8 and #2 cyl are full of fuel. turn truck over and its knocking. Pulled the 2 injectors and #8 is split at the tip but #2 looks ok to the naked eye. Did a compression test and both those cyl are a tad low....could it because they were full of fuel? Then the tech tells me the coolant sys has fuel in it.......so now they need to do a pressure test and soap test to determine if its a cracked head or a sleeve. I am sending inj back to hypermax to be checked and replaced. Truck has hypermax studs, gasket, firering. Truck didn't over heat and has not seen temps above 1200. I am so lost for words here. Could it be just a sleeve that caused the inj to go bad. But two months ago the #8 cracked too. so i am thinking its a exsisting proplem that caused that time and this time since its the same inj. Hope its just a sleeve and not a cracked head. But how would fuel get into the coolant? PLEASE YOUR COMMENTS ARE WELCOMED...... If its just the one side should I pull both heads.......if I have to pull a head............why would the #2 cyl be full of fuel if the #8 was and the inj tip in #8 was cracked? What could be the causes of fuel in the coolant?