12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

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Old 08-01-2009, 06:37 PM
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can i turn the star wheel up without moving or cutting the plate? and will this hurt my mpgs? and i dont got money for guages and i got stacks on my rig so do i absolutely need my egt guage before i do anyhting with the pump. i never tow anything either
 
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Old 08-01-2009, 06:58 PM
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I would assume you could but its just going to sit there and smoke a whole lot and its going to generate alot of heat. IMO I wouldn't touch the pump without a pyrometer... even a stock truck with an exhaust is still capable of frying the pistons.
 
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Old 08-01-2009, 07:59 PM
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x2 get gauges first. dont take chances fella. 10 mins of turning pump could cost you alot of money... just my .02
 
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Old 08-01-2009, 10:48 PM
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Originally Posted by TwinStackPete379
x2 get gauges first. dont take chances fella. 10 mins of turning pump could cost you alot of money... just my .02
^what he said.
 
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Old 08-02-2009, 05:27 PM
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alight. i asked my friend bout this and he said we could but the pyro sensor in the dp . i know its most accurate in the exhaust housing of the turbo but will that still be good. im tryin to save some money anywhere i can. and if i can do this ill save alot of money. the diese shop by me charges roughly 600 for a pyrro trans temp and boost guage and install
 
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Old 08-02-2009, 06:54 PM
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How are you saving money by putting the pyro sensor in the dp? As for putting it in the dp your gauge could be off by as much as 400* IMHO your wasting your time with the pyrometer if your not tapping the manifold... Waiting may be difficult but it might save you a couple thousand in the long run. Trust me...
 
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Old 08-02-2009, 07:02 PM
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Originally Posted by young gun
alight. i asked my friend bout this and he said we could but the pyro sensor in the dp . i know its most accurate in the exhaust housing of the turbo but will that still be good. im tryin to save some money anywhere i can. and if i can do this ill save alot of money. the diese shop by me charges roughly 600 for a pyrro trans temp and boost guage and install
no dont put it in the downpipe put it in the exhaust manufold its way more accurate. you dont need to know what the temps are leaving the turbo its entering the turbo you need to be concerned about
 
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Old 08-02-2009, 07:18 PM
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the guage install is easy. go to the hardwhere store and buy the 1/4"npt tap or the 1/8"npt witch ever you need and the drill bit that goes with it....its only about 10 dollars worth of tools.. then just pick the spot on the manifold and drill it. then run the tap down the hole... then take a pencle magnet and get the shavings out and put the thurmocouple in... it realy is that easy.
 
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Old 08-02-2009, 08:28 PM
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well i would do that but im not steady enough and my friend is straight up afraid of doin it haha
 

Last edited by young gun; 08-02-2009 at 08:36 PM.
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Old 08-02-2009, 09:05 PM
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its not hard. First punch the spot where you want to drill, then just drill a pilot hole first (not in the middle or you'll hit the rib) then go with the full size bit. Also another way of making sure you don't leave shavings in your manifold is to use some type of lube (I used white lithium grease) on the bit to catch the shavings... Another thing when tapping the manifold tap it on the back because cylinders 5&6 run hotter because they are the last to be cooled
 

Last edited by rkadcock; 08-02-2009 at 09:12 PM.


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