ZOOM & KABOOM

[17cak]

grenage blew up in my block

[17cak]

LAST BUT NOT LEAST, NATOR NATION!! btw check out the most important part on the oil pan the name plate

[Roddiy]

Always awesome to see people coming out and helping fellow MSFers,

Good luck with the build/restore, and one quick question:

Are you getting forged pistons or OEM at this point?

[phate]

Some info about the day:

The #4 piston and rod caused some major damage. Four holes in the block/pan - one by the starter, one in the pan by the front, one huge hole in the back at the bottom of the block next to the pan, and one random hole above that.

The collateral damage is pretty serious, as well: The starter got taken out by a chunk of the block that got pushed out. The transfer case has a hole blown into it where the huge hole is in the back side of the block.

The biggest piece of piston left is the one pictured above (being held). It and the top of the rod look like they just exploded. The bottom 3/4 of the rod is still attached to the crank. The main girdle got massacred under cylinders 3 and 4. I'm sure that bottom part of the rod had a big part in the block destruction at 6300rpm.

The balance shaft assembly was intact. (@HPFPUPGRADE)

____________________

Spark plugs in cylinders 1, 2, and 3 were oil soaked. Oil was EVERYWHERE in the engine. The intake manifold had so much oil in it, that it was pooled in the bottom and coming out of the throttle body.

The spark plug in cylinder #4 was crushed, but the porcelain was held in, and 3 or 4 pieces were left to attempt diagnosis after wiping them off a bit. They need blasted with brake parts cleaner, but there was no apparent spackling on those pieces to indicate major detonation. I suspected this, as we didn't hear any pinging when the engine let go.

All of the boost control system lines were tight and in good condition.

I'm sure Daniel will have some more info, but I think we're in agreement that we don't have a good indicator of failure mode.

[MSMS3]

Wow. No evidence of recent detonation (at least yet) and no bent rods, explosive separation of piston from upper rod and destruction of piston. Maybe boost did get extreme in recent past before the tune being tested? Maybe way higher than reported 22 psi?

This is baffling. Wonder what the other surviving pistons and ring lands (especially top ones) will look like upon tear down.

Any damage up top in the valve train? Any evidence of jumping timing (valve crashing into the piston, etc.)?

I'm so sad for OP, but now it's time to get the car back in action and to see what can be learned from the failure. A teaching/learning moment.

[silvapain]

We didn't pull the head or valve cover, but the timing chain looked taut based on a visual inspection from underneath.


Tapadatass

[mazdafreak]

subbin.


So this is why phate is behind on tunes lol...sry to hear about this tho!

[drknyte]

Man I wish I could've joined you guys.....

Made quick work of that motor pull.

Keep the knowledge cuming...... all over our faces!!

Good job guys!

[xfeejayx]

too bad that when there is piston separation, there is no evidence left to diagnose it

hurts so bad to read the t/c took a hit. that's just insult to injury, and more paint to the wallet.

[HPFPUPGRADE]

Originally Posted by phate Some info about the day: The #4 piston and rod caused some major damage. Four holes in the block/pan - one by the starter, one in the pan by the front, one huge hole in the back at the bottom of the block next to the pan, and one random hole above that. The collateral damage is pretty serious, as well: The starter got taken out by a chunk of the block that got pushed out. The transfer case has a hole blown into it where the huge hole is in the back side of the block. The biggest piece of piston left is the one pictured above (being held). It and the top of the rod look like they just exploded. The bottom 3/4 of the rod is still attached to the crank. The main girdle got massacred under cylinders 3 and 4. I'm sure that bottom part of the rod had a big part in the block destruction at 6300rpm. The balance shaft assembly was intact. (@HPFPUPGRADE) ____________________ Spark plugs in cylinders 1, 2, and 3 were oil soaked. Oil was EVERYWHERE in the engine. The intake manifold had so much oil in it, that it was pooled in the bottom and coming out of the throttle body. The spark plug in cylinder #4 was crushed, but the porcelain was held in, and 3 or 4 pieces were left to attempt diagnosis after wiping them off a bit. They need blasted with brake parts cleaner, but there was no apparent spackling on those pieces to indicate major detonation. I suspected this, as we didn't hear any pinging when the engine let go. All of the boost control system lines were tight and in good condition. I'm sure Daniel will have some more info, but I think we're in agreement that we don't have a good indicator of failure mode.

If you get a chance... check the crank end play and check to see if the BS assembly still rotates "clean". Its rare to see cyl 4 let go and normally that cyl will miss the BS assembly.

Have you checked the injectors? If you had an injector failure, that might be an indication to what the problem is.

[phate]

We haven't done any more than drop the pan to look at the destruction. I suppose we could check end play if I dig out my caliper, lol. Not sure if the crank will rotate much after the destruction, but once the head is off we'll try.

[Tabasco69]

Originally Posted by Tokay444 When a fuel pump goes bad you'll actually see a rich condition, as you're not getting the atomization you want. Raw fuel pools on the pistons until things get hot enough to explode. I blame inadequate fuel pressure.

That makes a lot of sense and the ecu is going to do it's best to compensate for bad fuel pressure by increasing the injector's duty cycle, I know nothing of the disi injectors but regular injector don't like being pushed much beyond 80-85% duty, going beyond that they heat up and can possibly stay static open or closed or even altogether fail.

Sorry to about your misfortune op, sounds like dumb luck, Phate seems pretty damn methodical about the way he approaches tuning.

[backward_0]

Subbed. You got a lot of support OP. This is what makes MSF badass.

[Ckmazdaspeed3]

Originally Posted by HPFPUPGRADE Wow, you see so few of these engine let up under WOT and in the upper RPM band. Did the OP still have the BS in the engine?

From what I've seen (unless I just happen to be focusing on these), most engines let up these days under WOT. I know that whenyou were here before, this was not the case, but it seems to be these days. We simply don't have nearly as many put put booms as we used to.

Some examples:

this guy
the guy with the red ms3 that got it on filmon his gopro with shit shooting out of the back of his car
whoisjeremy
superskaterxes
me
forzda (overboost)
bwallace (first Genpu and on a dyno with John@theI"mafucktardshop was tuning him)
I think I had one more, but can't remember now

[xfeejayx]

Originally Posted by Ckmazdaspeed3 bwallace (first Genpu and on a dyno with John@theI"mafucktardshop was tuning him)

LLlllllloooOOOOoooooooollLLOLOlolOlol

[17cak]

if @phate doesnt buy my car i will be parting out fellas, stay tuned for some deals

[Ckmazdaspeed3]

Sorry to hear bro. Good luck... God damn I wish I could buy it. Or u can just sell me the tranny, u don't need that, do u?

[drknyte]

Originally Posted by 17cak if @phate doesnt buy my car i will be parting out fellas, stay tuned for some deals

I can haz front a pillar plastic cover, says "AIR BAG", drivers side.......

And I would really think it over (if it's paid off), especially cause you have AWD and great potential! Just a thought!

[17cak]

looks like ill be selling the car fellas pm me if interested or check out the fs section

[memin]

can i have AP? let me know.. G/L

[sick_role]

That sucks man. Sorry to hear. The boom looked/sounded pretty catastrophic, however, so I can't say I'm surprised.

On the plus side, you are now a full time Buick driver. At least it's not an Olds88.

[memin]

any updates?

[17cak]

Originally Posted by memin any updates?

hey sorry r u still lookin for an ap?

[GLORIFIEDBOZO]

Did you sell the car?

[08MS3-19.6PSI]

hope all goes well man and for phate to cover the damages done well thats fucking great. you almost never see a tuner take responsibility like that. great job phate.

[memin]

[QUOTE=17cak;1366460]hey sorry r u still lookin for an ap?[/Q

yes i send you a pmed!!

[17cak]

Originally Posted by GLORIFIEDBOZO Did you sell the car?

got 7 for it on trade in with no engine and no tbe plus 2k off kbb of my 07 300c

[GLORIFIEDBOZO]

Originally Posted by 17cak got 7 for it on trade in with no engine and no tbe plus 2k off kbb of my 07 300c

LMAO, speed 6 prices are going up

[17cak]

Originally Posted by GLORIFIEDBOZO LMAO, speed 6 prices are going up

just found out the dealer took my car to an auction.. they got 4 for it... HAHAHAHA same with @zenger 's car

[zenger]

Originally Posted by 17cak just found out the dealer took my car to an auction.. they got 4 for it... HAHAHAHA same with @zenger 's car

They got 4 for it?

Fuck yea serves them right the cock suckers

[17cak]

Originally Posted by zenger They got 4 for it? Fuck yea serves them right the cock suckers

thats what adem told me

[Chriscote]

sorry for your loss, scares me because i have been workin through some issues with @Bucker for a little while now.