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Fresh engine Crank no start

These 6.5's can sound like a rod bearing gone when to far advanced. I would try to get it timed, after putting the Heath computer in it could amplify the problem as it does "learn" as you drive it. There still might be a bit of air in one of the lines causing an injector to not work and would be noisier. Start with the timing and then a good run. The fact it did run earlier with out the knock it may not be mechanical. With the valve cover off do all valves open and close when cranking it? You could check that on both sides.
 
OK. Just found a compression tester on the harbor freight website. For $26. If my local store has one in stock im gonna go pick one up tomorrow. If all the cylinders I can get to pass, then Ill put it back together. My friend is supposed to get his scanner back from the snap on guy Friday so I can do TDCO. By the way what have you guys found to work best on the IP fuel line fittings? Im thinking 3/4" crows foot? Gonna pick up a set of those too unless someone has a better suggestion.
 
For timing it, you can line it up pretty close and run the TDCO learn with the Key On Key Off (KOKO) method and it will make the PCM happy and probably smooth things out a bit. If you can see it there is a timing mark on the timing cover, its a wedge thing that sticks out towards the IP. The IP's mount flange edge should be just a bit to the drivers side of that, like a few millimeters.
IP position2a.jpg
The Snap On scanners are known to not show TDCO correctly, they dont use the correct ALDL file or something that has the multiplication factor in it.

The Heath PCM may have higher idle advance than the 96 stock PCM had. I personally do not like the cam advance (what scanner shows) at 11 degrees at idle, as many of the OBD2 trucks came with and is likely set at on aftermarket PCMs.

Without oil pressure the hydrualic lifters wont be at height, and they bleed down fast even when there is pressure. Max lift is only 0.4" so might not be able to tell without the lifter at full height.
 
Make sure all the injector lines have their rubber insulators in place and that the lines are not touching each other or other metal. If they are that will give you noise!
 
Start cracking your injector lines one by one to find you dead slug and to bleed possible air(i don't think air is the issue,but bad squirt could be)
 
Put er back together tonight bled the system and fired it up. Still with the miss fire. Cracked all 8 injectors. It ran worse at all 8. I interpret that as it being a random misfire. I'm gonna grab some clear hose for the return line tomorrow. I'm thinking air. If I don't see bubbles I'm going to try scream therapy.:yikes:
 
Put the clear return hose in. No bubbles. Drove truck. Still a little rough, but not like before. Did KOKO procedure. Ran as rough as before. Hooked up snap on Solace. In two separate areas it said TDC Offset 2.11 and in the other 3.00??!! When I tried to command TDCO learn it said " TDCO learn must be completed by an authorized dealer. I may be able to get my hands on a tech 2 tomorrow.
 
TDCOffset is out of parameters to be able to do a relearn or the scanner doesn't read right.
Other possibillity is the timing chain is worn.
Option 1) turn the pump so the pump is within parameters(to dr side Or Pass side depends on - or + on the offset.(i can't remember if you swapped IP's)
Option 2) replace timing chain.
KOKO won't work if there are codes present or op temp is to low.
 
Snap On is known to have some issues with its ALDL definitions for the 6.5, but mainly with the TDCO, but could easily mess up the multiplication factor on sensor data. If you get it up to temp and check the resistance on the CTS in the Tstat Xover there should be around 300 ohms across the sensor pins. If thats the case then its fine and you can do the timing procedure (KOKO) because PCM knows better even if scanner is messed up. In the attached file there is a picture on the second page of about how you should position the IP when installing it, which would result in a TDCO within tolerance.
 

Attachments

  • Mnx&Mods info.pdf
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OK borrowed a tech 2. Heres what I got. "IP cam reference missed" This value hangs at zero but blips to 1 pretty regularly when I am feeling this "miss" Any idea what thats all about?

TDCO -1.94*
Desired timing 5.7*
Actual timing 5.7*
Idle speed 650-660 RPM
ECT 180*
Fuel rate 9mm

Boost PSI 14 PSI @ idle?? This is what the scan tool reads. Whats up with that??

Engine idles pretty smooth. But when I tip into it you can feel it chugging/missing. When I wail on it, engine seems to run pretty smooth.
When the converter locks its pretty bad. I can watch the passenger seat shake if that gives you an idea.

Cylinder balance test made engine run worse at every cylinder.

Thoughts PLEASE! Thanks in advance guys. Im looking forward to a time when I can stop posting in this thread.
 
What kind of Heath Tune do you have and how old is it?

Idle timing of 5.7 degrees is very low, and I doubt its supposed to be that. I think the PCM may be confused by your CPS being installed not in the correct rotation, so it shows the timing low like that.

That may account for the cam references missed going back and forth too. Otherwise your OS may need to be cleaned or there could be air bubbles in the fuel.

Did you use the Tech2 to set the TDCO?

What is the warm idle fuel rate?
 
-Just got the Heath tune about 3 weeks ago.
-Ive got a clear hose on the return line and haven't seen any bubbles. I wish I could see it while symptom occurs though.
-Yes I used tech 2 to set timing
-warm idle fuel rate is 9MM
-Ill poke around for a procedure on cleaning the OS.

What do you think I should do about base timing? If anything
 
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