Another cracked piston

weekendwarriorfsw32 · Dec 1, 2013

Throw a set of modded piston in it and keep on going.

ncollins64 · Dec 1, 2013

Well put Morgan.

Bustedknuckles · Dec 1, 2013

I remember laughing in the other thread when you said it was good to go for another 8,000 miles..... Your luck is unbelievably bad man!

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blk350on20s · Dec 1, 2013

That blow by looks fine to me. Or at least normal to me

webb06 · Dec 1, 2013

Sledpull said:
Not to make light of your situation, but I've seen and had WAY worse things happen. Try building a whole new fully built engine and going 60 miles, loose a gallon of coolant, and pull it all back apart and buy a brand new block..... I believe Dillon knows how that is.

Most of us have all had time where it seems like it can't get worse. But keep on, it's way more fun than quitting. Besides you'll get bored and get back into it after a while and do it all again.... Ask me how I know!

I know the feeling! Haha

Mpoage · Dec 1, 2013

blk350on20s said:
That blow by looks fine to me. Or at least normal to me

:whs: sounds like an injector related issue to me.

Rmartin-97 · Dec 1, 2013

blk350on20s said:
That blow by looks fine to me. Or at least normal to me

It has a small miss for about 400rpm then smooths up fine. I have no codes is what makes it hard to diagnose.

Mpoage · Dec 1, 2013

Rmartin-97 said:
It has a small miss for about 400rpm then smooths up fine. I have no codes is what makes it hard to diagnose.

How much oil is in it? A relative compression test could rule out the possibility of a cracked piston real quick.

Rmartin-97 · Dec 1, 2013

Mpoage said:
How much oil is in it? A relative compression test could rule out the possibility of a cracked piston real quick.

Way over full on oil. Nate is gonna run a compression test on it this week.

webb06 · Dec 1, 2013

Now the question is: fuel or coolant getting in oil?

StockCar#10 · Dec 1, 2013

Rmartin-97 said:
Way over full on oil. Nate is gonna run a compression test on it this week.

Could of just had an injector fail

forcefed6.4ford · Dec 1, 2013

I'm with Ryan. Doesnt look like a cracked piston. Not enough blow by watching the vid. Usually when the piston goes the pressure surge in the crank case will blow out a glow plug harness or two. Cracked pistons don't smooth out either. I'm thinking injector.

Mike@MPD · Dec 1, 2013

If it sits and idles for a bit does it develope a miss?

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Dzchey21 · Dec 1, 2013

yeah i wouldnt get too carried away with thinking that its a piston, you would have noticed a crack when you had the heads off. It really hasnt been together long enough to have one crack unless you flat hot rodded the **** out of it for the last 3 days LOL

i would def look into an injector causing the issue. If you are way overfull on oil that will make the crankcase stuff do wierd ****.

What are you reading codes with? Hows the smoke from the exhaust?

Did you do anything with the HPFP while it was apart?

Rmartin-97 · Dec 1, 2013

Dzchey21 said:
yeah i wouldnt get too carried away with thinking that its a piston, you would have noticed a crack when you had the heads off. It really hasnt been together long enough to have one crack unless you flat hot rodded the **** out of it for the last 3 days LOL

i would def look into an injector causing the issue. If you are way overfull on oil that will make the crankcase stuff do wierd ****.

What are you reading codes with? Hows the smoke from the exhaust?

Did you do anything with the HPFP while it was apart?

No smoke out exaust. We're gonna put an ids on it this week. I jus been using h&s to look at codes.

Rmartin-97 · Dec 1, 2013

Mike@MPD said:
If it sits and idles for a bit does it develope a miss?

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No.

Dzchey21 · Dec 1, 2013

Rmartin-97 said:
No smoke out exaust. We're gonna put an ids on it this week. I jus been using h&s to look at codes.

something a little better might show a code that h&s wont
ids will be good to look at the relative balances ect, dont get too frustrated just yet, but i agree 6.4s can test your blood pressure at times. Im glad i dont DD one anymore