JasonCzerak
Active member
- Joined
- Aug 10, 2006
- Messages
- 14,824
So, has anyone figured out why there's a check valve in the break of the head?
cummins specs for back of the head return is 180 ml/minute at idle. Thats about 30 per injector. The number is always little higher with truck at operating temp than cold. I did a set of brand spanking new injectors once and cold was 60 ml/minute and warm was 90 ml/minute. The thing is you can't separate the flows out to tell how much from each injector.