I have nothing else to offer yet. Passed a contribution test eh?
Another Engine Failure Thread....
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Postmaster
Joined: Dec 2005
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Another Engine Failure Thread....
Well I figured out what the noise was. Good thing I pulled the motor, because I would have still been trying to figure out what the noise was
. This is what was in the oil pan.
I don't have the heads off to tell what the top of the piston looks like, but those are pieces from the #8 piston. Oh yeah here is my list of what was done:
Stock Injectors
Stock turbo(99.5+)
Stock <acronym title="High Pressure Oil Pump">HPOP</acronym>(17*)
<acronym title="DP Tuner - Down Pipe">DP</acronym> tuner 60T, 80E, 120R, 140E(Drove in 80E 90%)
Regulated Return with fuel bowl delete
OBA
Aeromotive 1000 Black
5/8" lines
thats it for performance altercations
.
Needless to say this sucks. I should have the head pulled off tomorrow or Friday with picture of the top of the piston. Interesting point, the truck never died, it ran until I pulled the motor out, and drove everywhere fine, just a very annoying dead miss. I drove it for about a month and a half like this. It passed a contribution test, and a change in cylinder velocity all the cylinders were under 2.0. But in the mean time, Discuss.
. This is what was in the oil pan.I don't have the heads off to tell what the top of the piston looks like, but those are pieces from the #8 piston. Oh yeah here is my list of what was done:
Stock Injectors
Stock turbo(99.5+)
Stock <acronym title="High Pressure Oil Pump">HPOP</acronym>(17*)
<acronym title="DP Tuner - Down Pipe">DP</acronym> tuner 60T, 80E, 120R, 140E(Drove in 80E 90%)
Regulated Return with fuel bowl delete
OBA
Aeromotive 1000 Black
5/8" lines
thats it for performance altercations
.Needless to say this sucks. I should have the head pulled off tomorrow or Friday with picture of the top of the piston. Interesting point, the truck never died, it ran until I pulled the motor out, and drove everywhere fine, just a very annoying dead miss. I drove it for about a month and a half like this. It passed a contribution test, and a change in cylinder velocity all the cylinders were under 2.0. But in the mean time, Discuss.
Lead Driver
Joined: Jun 2007
Posts: 7,760
Likes: 27
From: Hampton, Maryland.
Wow...in one aspect, that sucks, but in another, you have to be impressed with the durability of your truck. Even with a busted up piston, she still drove and performed admirably. It sucks that it happened but at least it wasn't a catastrophic failure. I'm trying to find the silver lining....sorry bro.
Gone, but not forgotten
Joined: Oct 2005
Posts: 5,026
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From: Charlotte-Fairbanks-Bflo
You did not post the mileage when this happened. Can you please? My very first diesel was that POS GM put in a few models in the late 70's and early 80's. I was on my way to NJ in this 79 Olds and around Binghamton, NY it broke a rod, vibrated like crazy, air conditioning quit, cruise control quit and I don't know what else, but it got me all the way to the job site in NJ and I threw a gasser in it and drove it home the next week.
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
Sorry to hear that. Glad you finally got it figured out. I'm with Mike in being surprised it passed the contribution & rotational velocity test. That makes it sound like the top of the cylinder is still intact. I'm curious to see the pics after the head is pulled.
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Postmaster
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184K miles on it. Cooling jet was still in place also. Really confused on this, pistons just breaking, something caused it to break in the first place.
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Gone, but not forgotten
Joined: Oct 2005
Posts: 5,026
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From: Charlotte-Fairbanks-Bflo
I hate to be the purveyor of bad news but there has to be block damage and I think I've read they can't be sleeved. Am I incorrect here?
Post Fiend
Joined: Feb 2006
Posts: 11,892
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From: Middle Tennessee
Cracks John. You know Charles posts about it all of the time on the other site. I'll bet that is what caused it and you will find cracks in the others. This one was just the first to let go.
Lead Driver
Joined: Jan 2007
Posts: 6,708
Likes: 5
From: Kiowa CO
Sorry to hear about the dead motor. Looks like pistons skirts to me. maybe the reason for the contribution test passing. The top of the piston will still be intact but everything from the bottom compression ring is in pieces. What's your next move?
Post Fiend
Joined: Jul 2005
Posts: 14,582
Likes: 12
From: 21791
I think some people got unlucky rods, some got unlucky blocks, and you just got a set of friday or monday pistons. Time to build it up! Rebuild it with new Mahles, head studs, valve springs, and take a loan out for a set of injectors and a turbo!