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25*-100* difference

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Old Jan 9, 2015 | 09:55 AM
  #1  
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timmyboy76
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25*-100* difference

With just installing my p/s pyro..(), i see this window of difference, p/s being the hotter. Is this difference acceptable or do i have a failing injector..etc? BTW...maybe because im a lefty, but found that installing the pyro on the p/s was ALOT easier than that on d/s ;-X22

idle, seems to be within *'s, but difference is at all motor temps persay, and light/moderate and heavy throttle positionings...
 
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Old Jan 9, 2015 | 10:34 AM
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Mine used to be synced up, but I had an issue with #7, and the PS read 50-70 deg cooler. I swapped #7 stick to #2 position, and the lower reading flipped to the DS. The laser thermometer confirms #2 is cooler than the other 7 sticks.

Before you assume you have an issue, you want to make sure the probes are set to as identical depth as possible. I'm also assuming you drilled the holes equidistant from the last cylinders on the manifolds.

Suspicions in imbalance from a new setup should be verified by a separate temperature reading by another device, like the laser thermometer. I had mine for a while and knew the behavior of the gauges before the problem showed up, so I felt confident there was an issue before I verified.
 
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Old Jan 9, 2015 | 11:43 AM
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Thanks Tug. You brought up a valid point. Its coincidental that, when i torqued the inj and rocker bolts, #4 i felt, to have "stripped...(3+yrs ago)Letting it go up until last summer, i went back in there and sure enough, that bolt was probably around 3in lbs. Not only that, notreading instructions, lol, i "set' the driver egt probe, buried into the passing chamber. Only to realize afterwards, it needed to set "mid" stream. Which, i corrected, when setting the pass side probe. I CAN NOT reset the driver probe since the brass crush is just that, crushed. No movement at all..(found this out about 2yrs ago, when my egt gauge took a dump).

So, with them 2-scenerios, its seems more than likely both issues can cause the fluctuation...wonderful. I'll verify at "warm" temp, with a laser gun
 
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