This message is a reply to an archived post by Tx Jim on April 11, 2013 at 14:19:16.
The original subject was "Re: 2010 diesel".
Jim,
The diesel head is the least of the possible problems. I have a 2010 diesel and a mechanical engineer for 45 years. Found the common flaws with the diesel engine as mentioned by others, namely the pre-combustion chambers and cracks in the block. The block web (between the cylinders) is 1/8" thick and cannot handle the heat & vibration, prone to crack on the top side then propagate to the lower side. Once the lower side cracks the sleeve O-ring seals leak coolant into the oil. Found a block with no cracks and made a drill jig adding dowel pins in the sleeve plate and block to minimize the cracking. Effectively transferred the load to the deck plate. For the pre-chambers I used annealed copper O-Rings (50% softer) to seal the chambers. Can provide more info if you need it.
Jim A
The original subject was "Re: 2010 diesel".
Jim,
The diesel head is the least of the possible problems. I have a 2010 diesel and a mechanical engineer for 45 years. Found the common flaws with the diesel engine as mentioned by others, namely the pre-combustion chambers and cracks in the block. The block web (between the cylinders) is 1/8" thick and cannot handle the heat & vibration, prone to crack on the top side then propagate to the lower side. Once the lower side cracks the sleeve O-ring seals leak coolant into the oil. Found a block with no cracks and made a drill jig adding dowel pins in the sleeve plate and block to minimize the cracking. Effectively transferred the load to the deck plate. For the pre-chambers I used annealed copper O-Rings (50% softer) to seal the chambers. Can provide more info if you need it.
Jim A
