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Radiator Cooling system for the Asian diesels Do you have an Asian Diesel with Hopper cooling? Did you buy an engine with a built in radiator? Hopper cooling works great, but the water does boil off, and you have to keep adding it. If you have bad water full of minerals, you can build up deposits and eventually ruin an engine if you don't clean it out. there's several ways to modify this system, the CD has a good deal of info on it about this.
Here are two water cut 1/4 inch steel engine top plates, these are used when you want to remove the entire hopper, this makes for the most compact system. Note that the plate on the left is equipped with two welded in flanges like those found in a hot water tank (only heavier). This will work great when a radiator is used and you use the entire unit from the junk yard, fan, thermostat, etc, make sure the radiator you use has upper and lower hose fittings, not cross flow. The one on the right has a hole that accommodates the smaller auto thermostats.. example 1980s Plymouth Horizon. (NAPA Part 253) The two holes allow mounting of the following heavy flange and thermostat housing. It is best to use RTV for a gasket..
Here we can see the engine top plate on the left, and the hopper top plate on the right. the hopper top plate can be ordered in either style. If you plug one hole and run a water heater hose to a big barrel above the engine, it will effectively just extend the hopper, this is popular in a lot of third world countries. The item in the middle is a cold water return side that screws into the NPT flange, on the right, is the utterpower custom thermostat housing. Most use the LH plate and eliminate the hopper completely, I have one or two hopper tops somewhere in the shop. We will normally have the most popular cooling plate in stock, that's the engine plate, cut to accept the utterpower thermostat and the 'dip tube' for the cold water side. Simply unbolt the hopper, and attach the plate, fit a NAPA 253 thermostat in the housing, and you are ready to hook up to a standard water tank, or a radiator with upper and lower fittings, there's plenty of info on the CD, and some pictures on this site of the easy setup. Engine plate, thermostat Housing, and dip tube, $103, plus $10 shipping and handling lower 48. Engine plate only $69, water cut, with welded in female 1 inch NPT threads. Hopper plate $69 Dip tube $12 Thermostat Housing $26 Thermostat is cheap and NOT included, NAPA part #253 See my basic primer on 'cooling'
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