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Old 02-06-2013, 09:27 PM   #1
winkdemon
 
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fresh engine problem

just got a new engine back in my truck , the engine has malhe marine pistons , colt 181-210 cam , 60lbs valve springs, studs , dpp 140's , 181 dv's ,160 pump, adjustable pump gear , timing set at 16 ,

problem is white smoke and popping , i did a 5 min no water break in , engine sounds ok at 1800 rpm ,it's when you go to rev it up it pops , hold the rpm and its ok

i am going to try more timing 18-20 and bigger dv's and check fuel pressure
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1995 cummins 2500 DD stock
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Last edited by winkdemon; 02-06-2013 at 09:36 PM.
 
Old 02-06-2013, 09:29 PM   #2
jedeka

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Sounds like your timing is off.
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1996 Dodge Ram 2500 4x4, 5 spd. 4.88 gears, 2.5" turbo, Smokem inj, 5000 rpm springs, NV271, South Bend dd clutch, 33x12.50-15 STS tires, 6 inch stack, custom valve springs

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Old 02-06-2013, 09:56 PM   #3
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that was my first thought , but it cant slip the gear is keyed , but i am going to check it anyways make sure i didnt do something wrong with i put it back together. i have put a hundred of these together and never had any problems .
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Old 02-07-2013, 07:18 AM   #4
renopker
 
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Does it do it after its warmed up?
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Last edited by renopker; 02-07-2013 at 07:26 AM.
 
Old 02-07-2013, 07:27 AM   #5
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Was it timed by the right chart? I helped a friend out that had his pump timed in a diesel shop late at night and they used the wrong chart for his pump.

Also I have seen that happen with broken valve springs. I would definitely check fuel pressure and check the timing again.
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Old 02-07-2013, 11:36 AM   #6
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so i checked the timing it was at 16 , but i put it up to 20 , and checked fuel pressure , witch was low , 5psi lol , so i am sedning this pump for warranty as it was new , i will post up what i found with a new one ,
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Old 02-07-2013, 01:09 PM   #7
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Check overflow valve.

Seems everyone overlooks this.

-Clinton
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Old 02-07-2013, 01:40 PM   #8
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Quote:
Originally Posted by 12VRoush View Post
Check overflow valve.

Seems everyone overlooks this.

-Clinton
It's brand new , but i will check it anyways at the same time . i pretty much changed everything that goes wrong with these things , i figured when it was out i might as well do everything at once , didnt help but that was the idea
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Old 02-07-2013, 03:55 PM   #9
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Quote:
Originally Posted by winkdemon View Post
It's brand new
It could be just like the reman alternator and starters that are out there now. Every now and than your bound to just get a bad one
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Old 02-07-2013, 04:32 PM   #10
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Quote:
Originally Posted by winkdemon View Post
that was my first thought , but it cant slip the gear is keyed
I don't understand this. I've never had a p pump that was keyed. They are a tapered shaft press fit.
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Old 02-07-2013, 09:30 PM   #11
winkdemon
 
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Quote:
Originally Posted by f6jbob View Post
I don't understand this. I've never had a p pump that was keyed. They are a tapered shaft press fit.
adjust pump gears are broached and all pumps are keyed
Attached Images
File Type: jpg Adj Pump Gear.jpg (46.6 KB, 0 views)
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1995 cummins 2500 DD stock
1991 cummins race truck still to slow
2003 cummins 3500 tow pig 6.7 powered
 
Old 02-07-2013, 09:32 PM   #12
winkdemon
 
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well the new pump was no good , put another new one on and a pusher pump and it runs cherry , thanks for the help guys
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1995 cummins 2500 DD stock
1991 cummins race truck still to slow
2003 cummins 3500 tow pig 6.7 powered
 
Old 02-07-2013, 10:02 PM   #13
jedeka

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Glad you got it figured out.
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1996 Dodge Ram 2500 4x4, 5 spd. 4.88 gears, 2.5" turbo, Smokem inj, 5000 rpm springs, NV271, South Bend dd clutch, 33x12.50-15 STS tires, 6 inch stack, custom valve springs

2005 3500 4x4 dually, auto, KORE leveling coils, 19.5 wheels, Smarty Jr
 
Old 02-08-2013, 10:05 AM   #14
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Quote:
Originally Posted by winkdemon View Post
adjust pump gears are broached and all pumps are keyed
I missed the adjustable gear part. I fool so feelish.
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Old 02-08-2013, 05:31 PM   #15
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no harm no fowl
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2003 cummins 3500 tow pig 6.7 powered
 
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