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Terry, NJ · 07-25-2017, 08:50 AM

Welcome to the hobby and the Barn! A loss of water through the overflow tube is generally an over fill problem. Try only filling to the plate in the radiator. BUT flush the system! Get the old iron OUT. If you look at the engine from the driver's side, you will see a bent tube in the radiator hose. Take your hand a feel under the bottom of the tube. On the level part, You will feel a valve under neath. With pliers, you can turn the the thumbscrew and drain the system. Refill with water with a small amount of vinegar and run til hot, the drain again. Don't use a lot of vinegar and don't leave it in there a long time.
Terry

07-25-2017, 08:50 AM	#4
Terry, NJ Senior Member Join Date: May 2010 Location: Bucks Co, Pa Posts: 3,740	Re: Water Issues in a 31 Model A Welcome to the hobby and the Barn! A loss of water through the overflow tube is generally an over fill problem. Try only filling to the plate in the radiator. BUT flush the system! Get the old iron OUT. If you look at the engine from the driver's side, you will see a bent tube in the radiator hose. Take your hand a feel under the bottom of the tube. On the level part, You will feel a valve under neath. With pliers, you can turn the the thumbscrew and drain the system. Refill with water with a small amount of vinegar and run til hot, the drain again. Don't use a lot of vinegar and don't leave it in there a long time. Terry