(Partially solved, DOD delete is completed) Need help. DOD delete went south…

[randeez]

where are you located? i have a brand new 6.2 piston in florida

Thank ya. I should have mentioned I need one basically tomorrow or Tuesday.

 

[Dustin Jackson]

It might just be me but it seems like the 6.2 has issues more often than the rest. Both in the newer models but also in these ones

 

[swathdiver]

No idea. Do you know how common this is in general?

I’ve been running e85 recently especially to help clean so I can only assume it was something AFM or gas related

Very common. The piston failure is the accumulation of 100,000 plus miles of the previous owners running 87 in that high performance engine. I know you recently bought that truck and doubt you did anything to contribute to its demise.

 

[swathdiver]

where are you located? i have a brand new 6.2 piston in florida

How have you been Randy?

 

[rdezs]

That doesn't make sense to me. What I am sure of is that this is relatively common with 6.2s and busted pistons in them is a sign of prolonged use of low octane fuel. All across social media will you find evidence of this.

I've seen it on 6.2's over the past five or six years. Each one has turned out to be the result of a bad fuel injector. Running too lean in that cylinder. The discoloration of the valve in that cylinder gives it away. When you put it back together again, I would replace all the injectors.

It's the one main reason why I always check the long-term fuel trims on the Tech 2 at every oil change on my wife's Escalade. Paid off, around 177,000 miles I noticed the long-term fuel trim on one bank was 16%, while the other one was 3%. New injectors brought both to less than 2%.

 

[thefrey]

where are you located? i have a brand new 6.2 piston in florida

Dang. I am in Tennessee. I have one on order coming tomorrow but thank you for the offer

 

[thefrey]

I've seen it on 6.2's over the past five or six years. Each one has turned out to be the result of a bad fuel injector. Running too lean in that cylinder. The discoloration of the valve in that cylinder gives it away. When you put it back together again, I would replace all the injectors.

It's the one main reason why I always check the long-term fuel trims on the Tech 2 at every oil change on my wife's Escalade. Paid off, around 177,000 miles I noticed the long-term fuel trim on one bank was 16%, while the other one was 3%. New injectors brought both to less than 2%.

Interesting, I just talked to a mechanic and they mentioned it might be a lean condition. Which would make sense. Would cleaning them be a decent fix?

Edit: asking my tuner who took a data log when he tuned out DOD. He might have access to fuel the trims

Edit 2: tuner said I had been running a little lean but within it was spec for a stock engine.

 

[Marky Dissod]

... cylinder walls feel good and there are no grooves or anything that I can
feel with my bare hands.

Please pardon my late response.
You're supposed to be checking with your FINGERNAILS.

 

[thefrey]

Please pardon my late response.
You're supposed to be checking with your FINGERNAILS.

I originally meant that as in I took my gloves off to feel it (with my fingernails) instead of with my gloves lol

 

[Grady_Wilson]

where are you located? i have a brand new 6.2 piston in florida

Dang Randeez,m where have you been hiding?
Hope all is well, especially on the AC front.

 

[j91z28d1]

Interesting, I just talked to a mechanic and they mentioned it might be a lean condition. Which would make sense. Would cleaning them be a decent fix?

Edit: asking my tuner who took a data log when he tuned out DOD. He might have access to fuel the trims

Edit 2: tuner said I had been running a little lean but within it was spec for a stock engine.

you can have the injectors cleaned and flow tested. usually for less than a new set of oem injectors. Just. don't use some no name cheap injectors. they can cause more issues than they solve.

 

[the blur]

Where did the chunk of metal go ???

 

[91RS]

Put a piston in it and ship it.

 

[thefrey]

Please. Once you get it, weigh it for me. I really need that info!

476.1 grams. Courtesy of my espresso scale. Espresso is another hobby of mine but at least it doesn’t make me sore or question my decisions like working on a car

 

[SpareParts]

All good decisions if ya ask me.
Thanks!

 

[thefrey]

Got the new piston in. Now to finish the rest of everything else…

 

[thefrey]

My goodness. I guess I can’t get a break LOL.

One of my oil pump bolts snapped putting it in. Torque wrench was set, but felt a little soft and wasn't clicking. I was like eh, a little bit more and call it good. SNAP. I think it was a cheap soft bolt from the girdle kit.

Well… I have a girdle installed an the bolt in on one side and the bolt is tight. Should I just send it as is, or try to drill out that broken bolt? I already have the front cover, harmonic balancer, and water pump on so taking the oil pump off isn't really an option.

 

[SpareParts]

Looks like the remaining one is the normal one that holds it in. I would be afraid the broken one could vibrate out and wreck something.
Never an easy way to take a broken recessed bolt out but should not be to hard to remove it.
I would start with taking the pickup tube off. A small drill bit and an easy out should get it. A left hand drill bit would probably take it out also.

PS. Never use a cheap supplied bolt. They are all junk. I always just toss em and use a good known bolt.

 

[thefrey]

Looks like the remaining one is the normal one that holds it in. I would be afraid the broken one could vibrate out and wreck something.
Never an easy way to take a broken recessed bolt out but should not be to hard to remove it.
I would start with taking the pickup tube off. A small drill bit and an easy out should get it. A left hand drill bit would probably take it out also.

There is a little bit of loctite on it, so I don't think it's going any where. It's the opposite one that normally holds the pickup tube which slightly has me concerned.

I am almost more worried about having aluminum shavings near the oil pan if I drill it than perhaps getting it out.

 

[SpareParts]

If it were mine i could not live with it being like that. That's a pretty important tube and seal to have an iffy connection.
If you take the tube and windage try off it would be pretty easy to get any shavings out.