| Re: Engine smoking
The exhaust manifolds are made from cast iron and do not last long when water is not flowing through them with the engine running. They will start to warp and then crack. After you fix your water circulating problem, you will probably find cracked manifolds. You can check this without the engine running. First locate your water pump outlet hose. Make a fitting which will include a shutoff valve and attach your fresh water hose to this engine hose. Back off the 6 bolts on each exhaust manifold about 1/2 inch. Just enough to see a space between the manifold and the cylinder head. Slowly open the valve on the water house and see if any water comes out of the exhaust ports on the manifold. Water should be coming out of the lower unit also. If it is not, trace back your hoses and disconnect them one at a time and find your blockage. Good luck.
Dan
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