Engine Failure Survey ? - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 114 (permalink) Old 02-09-2010, 12:39 PM Thread Starter
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Engine Failure Survey ?

What is everyones take on the survey results?

I'm sure most of you heard about it and saw it and maybe participated I know it was posted on MANY diesel sites for people to take part in.

Here is a link to the raw data

Some highlights i find interesting

61.2% was DP Tuner
32.7% was on 80HP Setting
49.0% was stock HPOP
34.7% was on STOCK injectors

Hummm

1999.5 Ford F-250 7.3l 4x4 PSD DI Short block, Ported Heads, Head studs, Over size valve springs, DI Push Rods, DI RR, GTP38R, GSL 392 fuel pump with 3/8 line feeding 238cc Injectors from Nate @ Unlimited Diesel and Tuning from Matt @ Gearhead Automotive


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post #2 of 114 (permalink) Old 02-09-2010, 12:52 PM
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WELL DUH. If 30 people who ran DP tuner respond and the next highest is 4 responders and that was "OTHER" who the hell do you think is going to be the highest percentage? Hummm

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post #3 of 114 (permalink) Old 02-09-2010, 12:56 PM Thread Starter
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That says a lot to me.

1999.5 Ford F-250 7.3l 4x4 PSD DI Short block, Ported Heads, Head studs, Over size valve springs, DI Push Rods, DI RR, GTP38R, GSL 392 fuel pump with 3/8 line feeding 238cc Injectors from Nate @ Unlimited Diesel and Tuning from Matt @ Gearhead Automotive


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post #4 of 114 (permalink) Old 02-09-2010, 01:06 PM
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Better than 60 % of your respondants ran DP tuner and it says a lot to you that better than 60% are running DPtuner when they have engine failure? How does this say a lot?

May I suggest... http://www2.mtec.or.th/th/research/f.../failure3.html

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post #5 of 114 (permalink) Old 02-09-2010, 01:13 PM Thread Starter
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Did i say anything about DP Tuner being the issue. NO but it is kinda weird how out of 49 blown motors 30 of them where running DP Tuner tuning.

I also find it interesting that most the failures where on 1999 model trucks. Wonder if there is something about the block that year or something else.

There is a LOT of data there and I just want peoples take on this. Not trying to point at anyone

1999.5 Ford F-250 7.3l 4x4 PSD DI Short block, Ported Heads, Head studs, Over size valve springs, DI Push Rods, DI RR, GTP38R, GSL 392 fuel pump with 3/8 line feeding 238cc Injectors from Nate @ Unlimited Diesel and Tuning from Matt @ Gearhead Automotive


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post #6 of 114 (permalink) Old 02-09-2010, 01:15 PM
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I see a problem..

Failure analysis rules

* The failure investigator has only one objective. to determine the failure mechanism that caused the failure and to use that knowledge to prevent another occurrence:
* Start with and maintain an open mind. Emotion obscures objectivity and must be edged from the investigation.

* The theory, however elegant, must agree with the observed evidence, however humble.
* The simplest solution is the best solution.
* Having the wrong solution is frequently much worse than having no solution.
* Major incidents are often triggered by very minor or apparently innocuous details.
* Only one thing is worse than knowing you have a crack growing in a component, and that is not knowing you have a crack growing in a component.
* Cracks never get smaller, nor do they ever disappear. Either they stay the same size (invariably in a minor, insignificant, or easily repaired component), or they get bigger (usually in a critical component).
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post #7 of 114 (permalink) Old 02-09-2010, 01:23 PM Thread Starter
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Quote:
Originally Posted by big_stroker View Post
There is a LOT of data there and I just want peoples take on this. Not trying to point at anyone
Did you not read my post.

I just want to look at everyone elses view on the results since no one has said anything about them yet.

1999.5 Ford F-250 7.3l 4x4 PSD DI Short block, Ported Heads, Head studs, Over size valve springs, DI Push Rods, DI RR, GTP38R, GSL 392 fuel pump with 3/8 line feeding 238cc Injectors from Nate @ Unlimited Diesel and Tuning from Matt @ Gearhead Automotive


Auto to ZF6 Completed


520hp and 926tq - 5/23/09
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post #8 of 114 (permalink) Old 02-09-2010, 01:29 PM Thread Starter
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Close and lock and delete the thread if you want.

Just wanted to see what everyone's take was but I guess that is to much to ask for and people cant handle talking about what blows up trucks and what we can do to stop it.

1999.5 Ford F-250 7.3l 4x4 PSD DI Short block, Ported Heads, Head studs, Over size valve springs, DI Push Rods, DI RR, GTP38R, GSL 392 fuel pump with 3/8 line feeding 238cc Injectors from Nate @ Unlimited Diesel and Tuning from Matt @ Gearhead Automotive


Auto to ZF6 Completed


520hp and 926tq - 5/23/09
Dyno Sheet
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post #9 of 114 (permalink) Old 02-09-2010, 01:31 PM
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I think both links are good. You not only have graphs, Russ posted the processes when determining engine failure which is a great one. The graphs may not tell you the complete story, but, they give you a baseline to start from. Now what exactly is happening during this 80hp increase setting???

Damaged Rod at 70% on #1
Damaged Piston 47.4% on #8
Cracked Cylinder 42.9% on #2 & #3
Blown Head Gasket 40% on #1
Broken Rod 34.8% on #2

I haven't found what the replies are just yet. How does the damage on any part appear as?

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post #10 of 114 (permalink) Old 02-09-2010, 01:32 PM
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You're right. So, if you want to do a proper failure analysis learn how instead just taking a survey and using the results to point at one thing.

I don't care if you were saying the cold intake is the root cause, I would tell you and anyone else the same damn thing.

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