Upgrade parts for the D16 diesel engine…
Upgrade parts for the D16 diesel engine were sent free of charge to improve the performance of the engine. Below is a summary of my experience. As I installed the diesel upgrade parts everything was obvious except for a new part that turned out to be a pump priming lever. That replaced the spacer on the governor mounting stud. The only installation problem was the new fuel feed line which was not even close to fitting. I had to bend and shorten it to get it to fit. The attaching screws for the injector to the cylinder head were missing but I had some lying around that I used. The new parts make priming much easier. The injector can be purged of air by simply holding down the external spring lever while pumping fuel to the injector. No need to loosen fittings. When the injector is fully purged of air its motion can be observed to confirm purging is complete. The exhaust is now at the bottom of the head. This will prevent hydrolock from an accumulation of unburned fuel. It was necessary to set the valve clearances after installing the new head. Note: the shorter governor adjusting spring is a big improvement giving better speed control. I got the engine running but it still is not optimal. Probably experimenting with the injection timing is still needed. But it is now much easier to get the engine running which will make tuning easier also.