I need some help/advice. In a previous thread (http://www.exiges.com/ubbthreads/showflat.php?Cat=&Number=107848&page=0&view=collapsed&sb=5&o=&fpart=2#Post108032) I have mentioned that my engine coolant was seriously pressurised at Cadwell. To begin with, I was guessing that the liners may have droppedï¿½pretty much thinking too much TBH before getting my hands dirty.
Anywho, the head has now been lifted and to my amazement I have found a crack in the vertical plane down the liner. (Front of liner) Now, it seems that crack propagation has began at the thiner part of the liner and then spread upwards to the top of the liner. The engine at the time was running standard internals but it may have been revved to over 7400rpm, I will need to check my Emerald for the exact figure.
So, why? Why have I managed to crack a liner? Was it an over rev? Too much power for a standard liner? I have had head work (DVA k06A) but surely the internals can handle this?
I will try and get some pictures up tonight, my work PC doesnï¿½t allow me to use Photobucket to host the shots. Any help/advice would be very interesting.
Thanks in advance
P.s engine is a EU2 VVC lump.