Did your head gasket blow by any chance? Cylinder no. 4 looks like it's suffered a bit of water damage. 79.97.4.31 (talk) 18:34, 28 May 2008 (UTC)
- May just be surface rust from coolant spilling on it when they removed the head, depending on the time frame between removal and photographing. —Preceding unsigned comment added by 66.168.78.80 (talk) 18:56, 31 March 2010 (UTC)