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Old 07-07-2016, 06:28 PM   #1
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cam swap help

ok i got an 05 ram 5.7 ,wanted to change the timing chain because of high mileage, while i had it apart i put an srt cam and push rods and valve springs in it and advanced the cam 4 degrees ,started it up and it was running smooth and let it run for 20 min.took it down the road going easy,gave it a lil gas and heard a clunk like a bad universal joint,came to a stop sign took off a wound up 1st alil and it started breaking up about 3500-4000 rpm ,it still seems to be idling smooth but scanner did say multiple misfire .so any ideas?

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Old 07-07-2016, 06:51 PM   #2
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Not sure hear with this one. Could be fuel but likely cam crank timing. Did you do a cam crank relearn you will need a scanner. Stock timing setup it would have ran fine but you changed the cam position and now the computer needs to know that.
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Old 07-07-2016, 06:58 PM   #3
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My guess is it popped a push rod off the rocker. I would pull the valve cover and check the rockers/push rods...
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Old 07-07-2016, 07:55 PM   #4
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ill check push rods,i got a diablo i1000 can i do a relearn with that and how?
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Old 07-07-2016, 07:56 PM   #5
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No will need a good scanner
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Old 07-07-2016, 08:02 PM   #6
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guess its going back to 0 degree then lol
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Old 07-08-2016, 12:32 PM   #7
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Put back to zero and it's all working good
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Old 07-08-2016, 12:42 PM   #8
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Did you find anything out of place? I have read 4 degree's advance is common when using the 6.1 in a 5.7. Curious, what was wrong...
Good you got it running..
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Current 60' PB 1.351 (2019) mechanical issue for 1/4m

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Old 07-08-2016, 12:49 PM   #9
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Advancing it throws the cam crank variation out and it would need to be relearned if even able to learn. Best bet is to install can on the marks and deal with it. Want advance get a cam with cam advance built into it
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