excavator
Senior Member
On the early 3412 HEUI motors, the original injectors are no longer available. I've been told that the new style injectors have a check valve in the oil return line so that the oil will not run out, resulting in hard starting after setting for a week or two. Is there any other way to solve this problem,besides replacing all the injectors? With the cost of new injectors, changing out all 12 is quite cost prohibitive, but this motor, after setting for a week or two, will not start at 40 degrees and this is what Cat says needs to be done. Any ideas?