Maybe you’ve never seen this engine in a picture larger than a thumbprint?
Many a DIYer have noticed the Chang Jiang Motor Cycle, and have studied the changes made since the transfer of the tooling and knowledge to China. Looking at how little has changed in China, and how much has changed with the same design in Russia makes for an interesting study. I make the assumption that this engine design was tech transferred around the same time. According to travelers this engine can be found in everything from main propulsion for fishing boats, generators, running line shafting in machine shops, and more..
This twin cylinder Diesel is rated at 17.7 KW at the flywheel, and was machined on Massive Government owned Equipment in Mainland China. The top end is lubricated with wicks and trays, with modern lubricants, we might get away with a squirt of oil per tray twice a day.
Under the side cover are two individual Injection pumps, with very refined and logical linkage, like we’d expect from Germany prior to WWII.
The rear deck has two identical looking filter canisters, one for lube oil, another for fuel, the lines and banjo connections look very well made, and hard to improve on. I doubt it would take much at all to convert to screw on filters like we typically use here instead of the replaceable internals, and reuseable canisters.
The cooling system is of special interest to me, the cooling water pump is below the filters, and the inlet is right on the pump, the water discharge is up through the exhaust manifold, and discharges along side the exhaust stack. I think this is very similar to how a person would plumb it if he were interested in Combined Heat And Power. No doubt you could easily use a thermostatic valve to control re-circulation or allow the transfer of hot water to a point of heat storage or other use with little effort. The high mass of the water jacket, and block, along with the clean vertical design will assure good cooling.
Another thing of Interest, There is a Manual available for this Engine that looks as if it were made in the WEST. The manual has no typos in it, and the English is perfect. This suggests to me that the Engine enjoyed popularity outside of Asia, as I have seen few Service Manuals done as well for things that were manufactured inside Mainland China.
Each Engine comes with a tool kit, auxiliary start handle, rings, head gaskets, etc. Since import is now more of a problem, I’d like to see my engine fall into the hands of a collector. China is in the process of modernizing their stuff, and we will lose another source of old engines that seem far more capable of burning a wide variety of fuels. These engines were developed when fuel quality was an everyday concern.
To my knowledge, even a decent picture is hard to find. The flywheel is a marvel, and the coupler has a large circle of rubber isolators, very well designed, and should be trouble free. The frame you see is custom made here of very heavy angle, all is welded with 6011 rod. The coupler center is fitted with a keyed hole ready to receive a drive shaft, and there is plenty of room to fit an outer bearing for PTO or similiar use. Rated RPM is 1500, but I’m sure this engine will be happy down to about 1100 RPMs. Thsi engin was test run in China, has electric start, and is equipped with their highy standardized Starter and electrics.. Including an Alternator to charge the start Battery.
If I had a Wooden Boat Project here in the Puget Sound, I’d really consider this engine, the sound it would make with a split exhaust, how easy it would be to set up fresh water cooling. The fact that it would be so easy to set up cabin heat. And this frame, it looks to me that there’s plenty of room for the reversing box, and a plasma cutter could be used to cut the angle and allow the bottom to conform to the bottom ribs of your boat, then reweld.
Think of the sound! In a day before the EPA, I can see myself setting course north via the inland passage, burning a mixture of highly filtered and dewatered WMO, and used paint thinner solvents given to me.. the auto pilot set, the BBQ off the stern, eating fresh caught fish all the way to Petersberg.
If you have more detail about the history of this Engine, I’d love to have your comment..