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

poping at 2000 rpm or more

Old Dec 7, 2008 | 01:53 PM
  #1  
big_dog37074's Avatar
Thread Starter
|
Diesel Enthusiast
Joined: Oct 2008
Posts: 149
Likes: 3
From: TN
Default poping at 2000 rpm or more

96 dodge with a number 10 torque plate thats all done to it right now. When I first start it in the morning or if it sets awhile. I can drive it down the road anything 2000 or more rpms it starts poping and oil smoking. after it warms up alittle it runs fine. any ideas timing, injector.
 
Reply
Old Dec 7, 2008 | 02:11 PM
  #2  
oglejust's Avatar
Diesel Wrench
Joined: Oct 2008
Posts: 556
Likes: 19
From: paris illinois
Default

u need to let it warm up

taken from: http://dodgeram.org/tech/dsl/FAQ/cold_wx.htm
The Cummins B will reliably start at temperatures to -20 degrees F without the block heater, but the engine is much happier if the block heater is used. It may take several manifold heat/start cycles before the engine fires and continues to run. Expect a large smoke cloud, engine and accessory whine, knocking, and vibration until things warm.
Below -20, some block heat is usually needed to get the engine to reliably fire. Always allow the oil to warm before using heavy throttle or running the engine above 2000 rpm. An electrically operated magnetic oil pan heater will help warm the oil and make the engine easier to turn over. Espar makes diesel fired block heaters for people who can't plug the truck into an electrical outlet. In cold weather Cummins Premium Blue 2000 semi-synthetic engine oil flows better than regular 15W-40, but it does not have the required SF or SG rating!.
 

Last edited by oglejust; Dec 7, 2008 at 02:29 PM.
Reply
Old Dec 7, 2008 | 04:53 PM
  #3  
94cummins12v's Avatar
Diesel Bomber
Joined: Jan 2008
Posts: 4,525
Likes: 103
From: Havre mt
Default

Originally Posted by big_dog37074
96 dodge with a number 10 torque plate thats all done to it right now. When I first start it in the morning or if it sets awhile. I can drive it down the road anything 2000 or more rpms it starts poping and oil smoking. after it warms up alittle it runs fine. any ideas timing, injector.
yep need to warm it up more i dont even exceed 10psi of boost or more than 1400RPM untill i pop my thermostat
 
Reply
Old Dec 7, 2008 | 06:53 PM
  #4  
dukeboy_318's Avatar
Diesel Bomber
Joined: May 2008
Posts: 1,306
Likes: 119
From: columbus, In, home o
Default

agreed, or set the idle higher to help it warm up
 
Reply
Old Dec 7, 2008 | 09:23 PM
  #5  
94cummins12v's Avatar
Diesel Bomber
Joined: Jan 2008
Posts: 4,525
Likes: 103
From: Havre mt
Default

i love watching guiys start a diesel in teen temps and then just drive it, had a kid with a 96 cummins my senior year in high school do it every day, start and drive away two weeks later he wernt doing that anymore after having to buy new injectors from fouling the hell out of them
 
Reply
Old Dec 7, 2008 | 09:36 PM
  #6  
stkdram55's Avatar
BOMBARDIER
Joined: May 2008
Posts: 6,548
Likes: 279
From: New Holland Ohio
Default

not only that but if ya dont let it run for atleast a few minutes your not letting your not letting your oil get all the way thru your engine and lubricate all your engine, and 15w 30 oil has the viscosity of molases when its real cold, you might also want to see if your getting enough fuel pressure
 
Reply
Old Dec 7, 2008 | 09:40 PM
  #7  
94cummins12v's Avatar
Diesel Bomber
Joined: Jan 2008
Posts: 4,525
Likes: 103
From: Havre mt
Default

he shouldnt have an issue with defueling them p-pumps put out alot of fuel, let her warm up for about 5-10 minutes then dont get over 1500 till the thermosat opens then roll the coal and you should be fine, i run dello 15w-40 all year round here even in sub zero temos, just let the truck idle for 10 every time, even after work
 
Reply
Old Dec 7, 2008 | 09:45 PM
  #8  
stkdram55's Avatar
BOMBARDIER
Joined: May 2008
Posts: 6,548
Likes: 279
From: New Holland Ohio
Default

yeah i wasnt real worried about the injector pump i was thinkin about the lift pump
 
Reply
Old Dec 7, 2008 | 09:49 PM
  #9  
94cummins12v's Avatar
Diesel Bomber
Joined: Jan 2008
Posts: 4,525
Likes: 103
From: Havre mt
Default

lift pump might be bad i had to replace mine about a year ago only problem is i put a stocker back in should have went with a FASS
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
InheritedDiesel
Chevy/GMC 6.2L and 6.5L
11
Apr 12, 2015 04:35 AM
southeren_born
5.9 Liter CR Dodge Cummins 03-07
5
Mar 28, 2015 09:19 AM
Josh Chretien
5.9L 12V Performance
5
Mar 1, 2015 06:00 AM
Diesel Bombers
General Diesel Related
2
Nov 16, 2014 05:14 AM
Diesel Bombers
General Diesel Related
0
Oct 30, 2014 08:10 AM


Thread Tools
Search this Thread

All times are GMT -5. The time now is 12:16 AM.