OK. Here goes...bought granddaughter 1988 civic w/ 1.5. Had bad exhaust valve-burnt however no smoke. Pulled head and replaced one valve (very limited budget). Reassembled and started fine except..lots of white smoke. Tried 2-3 times and then tore down again to check head gasket and straight edge head. Had some space - approx .002. Could see no problem. Checked head bolt holes and did find some original head gasket material which might have given bad torque numbers. Got higher quality head gasket and reassembled. Same problem. Did not have intake manifold off of head so did not replace that gasket. What am I overlooking? [:@] PS Am old and slow but have lots of time.