Reply to thread

Message: <blockquote data-quote="Tazza" data-source="post: 24511" data-attributes="member: 82">Very small can still let enough water in I'm afraid. Remember your cooling system is under about 15PSI of pressure. Run the machine up to temperature then shut down. The cooling system is still under pressure and can pass through the crack into the combustion chamber, you spin it over then POW. Worst case is broken piston and rod through the block. Best case is bent rod or just hydraulic lock and no damage.Best to check before you throw a new head and gasket at it <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile    :)" loading="lazy" data-shortname=":)" />Hope it just needs a head and timing cover. For such a low hour machine it sounds really good.</blockquote>