CM 870 Smoking white

[tree98]

(01-25-2025 )Ken Worth Wrote:  When I mount it on the rear fueling actuator (back of the engine) there is 0 bubbles. But when I mount it on the front one it has crazy big bubbles.
Would This mean it’s one or all of the front 3 injectors right?

Yes

(01-25-2025 )Ken Worth Wrote:  On the cm870 there is 4 actuators, the very first one is fueling for the front 3 and the very last 4th in line, is for the rear 3 right?

Yes.......

it's possible you have a bad timing or metering actuator for the back 3 since you've found an issue on #4 but no bubbles.

Also look VERY close when barring the engine over, "bubbles" can be easy to miss. Watch Rawze's video(3 short videos) and you'll see what i mean.

https://youtu.be/Wu_WN8BA-LA?si=atQphHcIJ6w-xbb6