6.5 carnage

[DieselSlug]

Wow, i think the worst ive done on my 6.5 was break an exhaust bolt in the manifold! Then again, i got some nasty rot carnage pics on my build thread.

 

[jmiller]

Gees, a customer of us did the same. Never suceed understanding how this can happen...

Mine was very simple.
Harmonic balancer came loose.
Sheared the key, ran for miles.
Once the crank broke, continued to drive for additional miles until acceleration caused the crank to finally slip between the halves.

This didn't show that 6 rods were also bent.

 

[btfarm]

Mine was very simple.
Harmonic balancer came loose.
Sheared the key, ran for miles.
Once the crank broke, continued to drive for additional miles until acceleration caused the crank to finally slip between the halves.

This didn't show that 6 rods were also bent.

Thought of you and your 2 piece 'miracle' chankshaft as soon as I saw this thread posted...:hihi:

 

[bison]

Everything can go kaput,..If it don't break one doesn't try hard enough.:hihi:

Some people manage to break an Anvil,....i bet Warwagon could too if he put his mind to it

 

[WarWagon]

Mine was very simple.
Harmonic balancer came loose.
Sheared the key, ran for miles.
Once the crank broke, continued to drive for additional miles until acceleration caused the crank to finally slip between the halves.

This didn't show that 6 rods were also bent.

Looks like one of the mains cracks could have went all the way around causing the rest of the carnage.

I thought a 6.5 WAS an Anvil! :hihi:

 

[KrisML]

Lets see there's been 3 different engines in my truck. Two died interesting deaths. First one was the original 6.2 that I hydro-locked in a 4 foot deep stream. Completely cracked the length of one cylinder. Plus bent and twisted the connecting rod. I kept the rod as a souvenir.

The next one was the replacment 6.5 that the Diesel Depot built for me about 10 years ago. Back in 2010 the crankshaft decided to become a two-piece unit. Amazingly enough it would still start and run. That engine got rebuilt then the oil pump failed after 600 miles and is now being rerebuilt. I'll have to load the pictures once I'm on my computer.

 

[6.5L]

I surprisingly am still intact all things considered. Now where is some wood to knock on. I did accidentally drop a small spring, which may or may not have been for the governor :hihi: inside the injection pump. Put it back together. Noticed it wouldn't go past 2500rpm. Took it apart. Used a magnet to fish out all the shavings of what was left. Put it back together with a suitable spring from a pen. Worked great for another few thousand miles until I had the injection pump rebuilt. Somewhere, this is a IDI god watching over me

 

[Edzzed]

And i thought I had it bad when I put a rod through the block and broke the cam in two places. That was on a 350 I had in a Vega station wagon.

 

[Chevypoor]

Well War Wagon wins this thread but I will post my minor carnage.

Bought the truck with a bent pushrod. Cleaned it up and put it back together.

I did not realize it ( did not pull the lifters ) and I am not sure why but the oil feed holes in 5 lifters on the turbo side of the motor were plugged. Bought the truck with a bent pushrod. Cleaned it up and put it back together. Then after 150 or so miles while testing the ATT out on the backroads she lost power and shut off.

The worst one in the pic is the 6 intake lifter. It was in pieces inside the motor... I heard a strange noise that went away quickly... truck had been sitting 8 years.... when it stopped I thought it was ok. That was 100 or so miles ago. Heard the noise again and same thing went away that must have been the number 4 cylinder. Those are the pushrods in the photo. They were inside the lifter. The other lifter in the photo was the number 2 cylinder. All three were intake cylinders. Same side of the motor were two other lifters that were collapsed not pictured.

Block is coming out tomorrow to inspect the bearings.

 

[ak diesel driver]

It's not about winning, we just like to see pics of what can and does happen occasionally

 

[tanman_2006]

It's not about winning, we just like to see pics of what can and does happen occasionally

Coulda fooled me. WarWagon seems to take it personally lol

Source Unknown

 

[DieselCash]

If you want to test a trucks limits and beyond, let WW test it out a few weeks. :hihi:

 

[greenmeanh1]

I have been lucky so far on my original 97 turbo 506 but i have low miles on mine at 130 kmiles now. Still runs like a top but i know one day i will post bad news here especialy given i drive 80mph plus at 3k plus rpm most of the time.

 

[Chevypoor]

ak diesel driver
It's not about winning, we just like to see pics of what can and does happen occasionally

Winning was the wrong word to use. Nobody wins when there rig suffers engine damage. What I meant to say was WW has obviously more experience with 6.5 carnage that most of us.

DieselCash
If you want to test a trucks limits and beyond, let WW test it out a few weeks. :hihi:

To bad GM did not hire him for there durability testing. We might all have P400 style 6.5s in our trucks!

 

[tanman_2006]

I have been lucky so far on my original 97 turbo 506 but i have low miles on mine at 130 kmiles now. Still runs like a top but i know one day i will post bad news here especialy given i drive 80mph plus at 3k plus rpm most of the time.

I have a 506 GM block with 300K on it. They dont always come apart.

 

[Chevypoor]

Pulled the block today and as I suspected she spun a bearing... or I should say all 5. Sorry about the bad pics but the stuff on the oil pump pickup is ribbons of main bearing pieces/ parts. The crank is scarred up pretty good so I think it is done.

 

[3500GMC]

It roughed up the mains, but did they actually spin? Pics aren't so great. Lets see the main caps.

 

[Chevypoor]

It roughed up the mains, but did they actually spin? Pics aren't so great. Lets see the main caps.

Sometimes taking pics with a phone can be hit or miss. When I opened cap number 3 the parting line of the bearing was 1/2 or so above the block. When I cracked number 4 the parting line was in the middle and when I pulled the crank the number 4 was bottom half of the bearing was in the block. The top half with the oil feed oil was on the crank. The dark stain on the number 2 crank journal is not oil. That will not come off. Not apparent in the pics is the grooves cut into all the main crank journals and it actually had very light scoring on two of the rod journals. The oil pressure was 3 or so when she was hot idling. I also pulled off a couple of "ribbons" of bearing that were wrapped around the crank. I can however flip the mains over and get some pics later today.

 

[WarWagon]

Coulda fooled me. WarWagon seems to take it personally lol

Source Unknown

After going through that much carnage and heartbreak you got to have some fun with it. Best part is learning from this so it doesn't happen again or to someone else. Of course this is a work truck not a show truck. Not what I had in mind when I got into 6.5's. The Biodiesel was the real reason and when they got bought out and gave me buggy fuel it just added to the cost and misery. Hauling auto parts in a trailer to corners of AZ with the 1993 was like a alcoholic owning a bar.

 

[Chevypoor]

Here are a couple of pics of the caps and a couple of better shots of the crank.