Howdy All! Longtime reader and first post since I could not find anyone else with this issue.
I've dropped in a 2005 6.0 motor that I put back together myself after having a machine shop go through it. The truck is a 2004 and after a couple of days of chasing the wiring gremlins I was able to get it to fire up. Now for the interesting part. It sounds like a high compression gas motor with a big cam, i.e. it has a big lope to it. I've only run it for about 10min in total while watching it on Forescan and do not want to attempt a test drive. For the last 3 starts it starts on the second turn of the key (I feel that this is a separate issue or it just hasn't bled out all the air yet). Throttle response while parked is good and fairly immediately smooths out as the throttle is applied. No sign that it will stall out. The standout is Sync NO along with a bouncing RPM (don't forget it has a lope). All the rest are showing good numbers with FICM Sync/Yes. I'm picking up a new CKS this afternoon but do not have high hopes. My gut feel at this point is that I may have set the crank in a tooth off from the cam because yes I am a cheap *** and did not want to pay for the special tool and was too impatient at the time to build one. I did however use a laser level, but given the consistent lope and the way it responds to throttle I'm second guessing myself. I've checked that the crank timing plate is secure but haven't rotated the engine yet while looking to see if its bent.
Questions:
Is an oscilloscope the only way to see crank/cam timing while everything is put together?
Would a short somewhere in the cks/cms/ebp shielding or wiring create a pulse that would cause the engine to have a consistent lope?
What else to check?
Any advice would be appreciated at this point, but I've almost convinced myself that I'll need to start over.
I've dropped in a 2005 6.0 motor that I put back together myself after having a machine shop go through it. The truck is a 2004 and after a couple of days of chasing the wiring gremlins I was able to get it to fire up. Now for the interesting part. It sounds like a high compression gas motor with a big cam, i.e. it has a big lope to it. I've only run it for about 10min in total while watching it on Forescan and do not want to attempt a test drive. For the last 3 starts it starts on the second turn of the key (I feel that this is a separate issue or it just hasn't bled out all the air yet). Throttle response while parked is good and fairly immediately smooths out as the throttle is applied. No sign that it will stall out. The standout is Sync NO along with a bouncing RPM (don't forget it has a lope). All the rest are showing good numbers with FICM Sync/Yes. I'm picking up a new CKS this afternoon but do not have high hopes. My gut feel at this point is that I may have set the crank in a tooth off from the cam because yes I am a cheap *** and did not want to pay for the special tool and was too impatient at the time to build one. I did however use a laser level, but given the consistent lope and the way it responds to throttle I'm second guessing myself. I've checked that the crank timing plate is secure but haven't rotated the engine yet while looking to see if its bent.
Questions:
Is an oscilloscope the only way to see crank/cam timing while everything is put together?
Would a short somewhere in the cks/cms/ebp shielding or wiring create a pulse that would cause the engine to have a consistent lope?
What else to check?
Any advice would be appreciated at this point, but I've almost convinced myself that I'll need to start over.
