I had the head off for a overhaul last fall. They cleaned out the
water passages in the head and the exhaust manifold. I also cleaned
out all the waterlines/fittings and rodded out the passages in the
block. Some of the fittings were closed by as much as a half.Also I
increased the hose sizes from the thruhull to 3/4".The engine now runs
much cooler and I get twice the water flow out the exhaust.
Richard V1812
water passages in the head and the exhaust manifold. I also cleaned
out all the waterlines/fittings and rodded out the passages in the
block. Some of the fittings were closed by as much as a half.Also I
increased the hose sizes from the thruhull to 3/4".The engine now runs
much cooler and I get twice the water flow out the exhaust.
Richard V1812