Cracked Piston- Sticky Injector? - Page 4 - Chevy and GMC Duramax Diesel Forum
06-07.5 LBZ & LLY Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect

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Old 10-10-2012, 09:33 AM   eBay Motors  #31 (permalink)
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Will my truck run with a cracked piston?
Good way to destroy,a good motor !!!!
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Old 10-10-2012, 09:36 AM   eBay Motors  #32 (permalink)
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itll run yes, itll even run with a broken crank but i would NOT run it tho
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Old 10-11-2012, 01:52 PM   eBay Motors  #33 (permalink)
 
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The thing is that I found diesel on my oil but my truck is runing fine no white smoke no rought idle lots of power so I wonder return line or crack injectors truck has 200k I just got 3 months ago my question is if I will be able to notice a crack piston and why they crack too much oil and fuel on the crank case I will open it this week how can I if I have the old or new style injectors iam new to diesel as you can tell so every info will be helpfull found injectors for 195 bosh
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Old 10-13-2012, 08:26 AM   eBay Motors  #34 (permalink)
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Originally Posted by Cris silva View Post
The thing is that I found diesel on my oil but my truck is runing fine no white smoke no rought idle lots of power so I wonder return line or crack injectors truck has 200k I just got 3 months ago my question is if I will be able to notice a crack piston and why they crack too much oil and fuel on the crank case I will open it this week how can I if I have the old or new style injectors iam new to diesel as you can tell so every info will be helpfull found injectors for 195 bosh
What year? Please fill out your signature.

Diesel in the oil sounds like it might be a lb7 motor with a cracked injector

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Old 10-14-2012, 04:51 PM   eBay Motors  #35 (permalink)
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Will my truck run with a cracked piston?
Yep they will. Started mine to load it on the trailor, and to unload it. I would have drive it home if I would have had extra oil.
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Old 10-15-2012, 05:46 AM   eBay Motors  #36 (permalink)
 
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Had it open put 1/8 of turn on all return lines they are a lil losse will find out soon if that was the problem
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Old 10-15-2012, 05:59 AM   eBay Motors  #37 (permalink)
 
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And my injectors had some like a barcobe on top in white is that nee or old style my truck is a 02 lb7
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Old 11-12-2012, 06:05 PM   eBay Motors  #38 (permalink)
 
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I never seen a motor runing with broke crank this is not the case my truck had fuel and oil on vrank case had diagnose 100 bucks guy told me i had two bad injectors same bank ask him wich he was unable to answer volume of each injector cp3 pump return line for each bank i have seen lots of guys out there that will tell you you need new set of injectors without bench test and if all you know is how to set your ppe on level 5 and 3 lol you will pay my case was return line leak where atach to injector change of temperature will cause this its a comon problem over tork a lil and you will be alright save 4300 hundred bucks .now there is any one here runing a holley blue as lift pump i met a guy that runs this pump with a regulator he say it works good need a second opinion
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Old 11-12-2012, 06:20 PM   eBay Motors  #39 (permalink)
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I've seen a motor with a broke crank and still running great! In fact so great didn't even know it was broke til it was pulled
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Old 11-12-2012, 06:37 PM   eBay Motors  #40 (permalink)
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Quote:
Originally Posted by Cris silva View Post
Will my truck run with a cracked piston?
isn't that why there are 7 more cylinders??
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