Need some help starting 3406E after overhaul

By chance did you check the flywheel pin timing with the head off. number 1 and 6 piston should have been at top dead. I ask this because I have seen the flywheel installed without the pin lined up which results in the flywheel out of time. If thats ok, you can also check your timing sensor. If its the old type of sensor, you need to pull it out. Do not lose the shim. The sensior is adjustable. With the sensor out, carefully pry the green center out this makes the sensor longer. now look in the sensor hole and make sure one of the raised teeth are lined up. Thread the sensor in WITHOUTthe shim. now take the sensor out and install the sensor with the shim. this sets the sensor air gap. Alot of times the sensor will get knocked in whhen removing the camshaft gear.

 

If you were able to turn it over by hand, then the valves are not hitting the pistons.

 

Cats use a keyshone ring that needs pressure to seal. A new cylinder pack with new rings needs to seat. That may be the sound your hearing. It may not be a bad idea to go over the top end settings again to be sure. Is this the first top end on a cat you have set up? Does the engine have a engine brake? If so, the most common mistake made is the exhaust valve lash. When you adjust your exhaust lash you must make sure your engine brake slave is not touching the exhaust rocker with the feeler gauge in. If the slave is holding down your exhaust rocker, you will adjust your valve setting wrong, make the exhaust valve lash loose. The best way is to back off all your engine brake slaves at least one full turn and always make sure you can wiggle the slave when you have the feeler in the exhaust rocker. Any time you have the exhaust brake housings off the exhaust lash will change alot.

How did you prime the fuel system? The best way is to remove the return fuel line from the head at the fuel block. Then prime the hand primer until fuel comes out. this is easier than pumping the hand primer against the fuel return valve.

 

Was there anything wrong with your engine before you overhauled it?

 

Jakes out of adjustment!!!! Check the book, there are a few different Jakes used on 3406E's. Have to ID the correct one to get the correct adjustment procedure. Seems like this is the most likely problem considering the oil pressure you mentioned.

 

Did you find anything wrong yet? I have had a 3406e with that same symptom before and it was excessive camshaft lash due to the idler mount moved. It was had to diagnose but if you had Cat ET and performed timing calibration it would become evident.