DaveInDenver
Rising Sun Ham Guru
I posted this in the rebuild thread, but it might not get much traffic, so here's a new thread. Still hoping to get the time to finish putting the engine back together and start it this weekend. Any recommendations on the break-in? So far the engine's been assembled and filled the crankcase with GTX 10W30, cranked and oil pressure built. A friend of mine said to fill the cooling system with water and start it. Then keep the RPM above 2000 for about 15 minutes, basically enough to burnish the rings, but not overheat. Then do a coolant and oil change (and I'd check the head bolt torque) and just drive it reasonably, at least not to baby it but no long pulls up Floyd Hill. Another oil change at around 500 or 1000 miles and call it good. Never having a new engine to break in, this will be the first one with zero miles that I have to do this.