Question: Testing lly injector return rates

[Devon]

I am going to be testing each injectors return rate in the next week. Is it as easy as pulling the return line on the top of the injector, putting individual lines from each injector return to individual measuring cups, then disconnect the ficm and crank motor over for 15 seconds per injector? Making sure each injector doesn't exceed the high margin of return fuel spec? Or am I completely wrong? Want to see if and what injectors need replacement.


Sent from my iPhone using Tapatalk

 

[Burn Down]

I can't find the test now, Henry posted them somewhere. But yes thats pretty close, I think crank time is closer to 30-45 seconds though. I had 2 bad tips on my injectors that were causing high return rates. I didn't have the GM procedure so I made my own. Hooked up the return lines to the injectors, put each one into a beaker and started the engine & let it idle 20 seconds. Pretty self explanatory which 2 were bad.

 

[ripmf666]

Post 285 and down

http://www.duramaxdiesels.com/forum/showthread.php?t=6199&page=8