CAT C4.4 acert won’t start until it gets some sniff

Really the only thing you need is the modified banjo fitting that has a nipple to attach a hose to so you can collect the returned fuel for measuring.

Awesome I will let yall know results when I get it going I can't thank yall enough.

ahart said: Really the only thing you need is the modified banjo fitting that has a nipple to attach a hose to so you can collect the returned fuel for measuring. Click to expand... Did the test today. Results were as figured. Setup the banjo on the return bolt and started cranking, within 15 second the machine had succeeded the 28ml and was well on the way to 40. Any input is appreciated, I have injectors in the way. Decided to replace all four.

You’re on the right path, change the injectors out and it should be happy again. You might check the fuel transfer pump while you’re right there with it and make sure it’s putting out a heavy volume of fuel, they have a tendency of getting lazy on those Perkins engines.

Appreciate it sir thank ypu for the abundance of knowledge I guess last mechanic changed it so it's brand new, outting out plenty of psi. Hooked scanner to it and it wouldn't build over 1400 rail at 350 rpms, only been wrenching since I was 15, 17 now really the first I've dealt with any common rail engines excepting cummins, I appreciate all yalls knowledge and want to thank yall for all the help.

There’s an incredible amount of experience here across a broad range of products. Most folks here are very happy to help and like seeing people succeed.

ahart said: There’s an incredible amount of experience here across a broad range of products. Most folks here are very happy to help and like seeing people succeed. Click to expand... Got injectors in just waiting on feed tubes/injection lines. Another question does anyone have torque specs on injector hold down bolts, Rocker assembly, and possibly feed tube lines?

239 in lb on the hold down bolt 22 lb ft on the fuel lines 26 lb ft on the rocker shaft

Thanks sir your a lifesaver.

Did you replace tha injector hold-down bolts with new.? They are supposed to be single use only.