AlsoHasAnImp Posted October 23, 2014 Share Posted October 23, 2014 Doing some work on a Mk.2 Spitfire just now, which has a Herald 1300 engine fitted.We suspect there is a crack in the cyclinder head, and wondered if this is a common / known issue with the 1300 ? Quote Link to comment Share on other sites More sharing options...
Nick Jones Posted October 23, 2014 Share Posted October 23, 2014 Pretty rare. Sometimes between inlet and exhaust valves. Where is you suspected crack?Nick Quote Link to comment Share on other sites More sharing options...
AlsoHasAnImp Posted October 23, 2014 Author Share Posted October 23, 2014 Nick_Jones wrote:Pretty rare. Sometimes between inlet and exhaust valves. Where is you suspected crack?NickNot sure yet.....Recent symptoms were an inlet valve on no.3 cyl. froze in place (it was recently replaced, along with guide), and when we took it out, it looked to have some kind of coating on, which we believe to be "cooked" water / anti-freeze.....I think the engine had been run hot, but I was just trying to find out if there was a known weakness in heads cracking. Quote Link to comment Share on other sites More sharing options...
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