Catastrophic failure thread!

Holy fuck-enstien thats ..... oblterated.

 

I'm sorry to be the bearer of bad news! Thats what you get for buying junk!
No go get some used OEM pistons and a new block and redo it again!

 

I'm sorry to be the bearer of bad news! Thats what you get for buying junk!
No go get some used OEM pistons and a new block and redo it again!

Agreed. Get OEM or forge for that matter. Thats just nasty.

 

I'm sorry to be the bearer of bad news! Thats what you get for buying junk!
No go get some used OEM pistons and a new block and redo it again!

You're stupid I'am never buying used pistons and it appears that the timing went off but only one valve is broke in that cylinder . I do not know the exact cause of this. It didn't run for more than 10 seconds it went up to 4k and failed with a ''clak clak'' noise it still was running till I pulled the cas plug before I got hurt.

I'm just going to build another block I can never leave my DSM.

 

Holy Mother of God!!!!!

That is ridiculous. I have never seen failure that bad from a simple startup. Did the motor spin freely before you fired it up? Terrible. I looked at the first pic and I was like meh...could be worse. Looked down and it was worse. I'm still amazed to see the cylinder wall get taken down like it was made of eggshells. Sorry man. Go find a stock 6-bolt long block from a JY and swap her in.

 

Crank turned by hand rebuilt, cylinder head bla bla bla

I re-did the timing twice because I felt I didn't push on hard enough before releasing the tensioner.

The funny thing is I'm not even pissed I just want to build another motor .

 

You're stupid I'am never buying used pistons and it appears that the timing went off but only one valve is broke in that cylinder . I do not know the exact cause of this. It didn't run for more than 10 seconds it went up to 4k and failed with a ''clak clak'' noise it still was running till I pulled the cas plug before I got hurt.

I'm just going to build another block I can never leave my DSM.

I'm the stupid one?
You don't see me posting pictures of my shit all fucked up do you?

Ok thank you. Your DUMB ass bought some ebay garbage and your shit blew the fuck up.

I'm stupid, right

Have a nice day!

 

I'm the stupid one?
You don't see me posting pictures of my shit all fucked up do you?

Ok thank you. Your DUMB ass bought some ebay garbage and your shit blew the fuck up.

I'm stupid, right

Have a nice day!

You're stupid because I just found out it was my crank pulley bolt that loosened and caused the contact. Here in reality pistons don't just '' blow up'' from ambient temperature start up go have a seat in the corner with your ''volatile ebay pistons'' .

 

You're stupid because I just found out it was my crank pulley bolt that loosened and caused the contact. Here in reality pistons don't just '' blow up'' from ambient temperature start up go have a seat in the corner with your ''volatile ebay pistons'' .

Ok, how does that happen?

 

If I knew this wouldn't happen it was tightened by impact gun.

 

If I knew this wouldn't happen it was tightened by impact gun.

I'm confused with that diagnosis too. If the pulley bolt was loose, that means the pulley was still on the crank. The key is still on the crank, no? So in other words, the pulley would still be timed with the crank. If it's timing related at all, why didn't any other cylinders enjoy a similar fate? I'm wondering about your lifters. Were they new or used? If used, did you drain them? I'm assuming you also turned the engine over after setting timing, to make sure nothing contacted (or at least verify timing). Do you have pics of the piston/rod, or is anything left of it?

 

You're stupid because I just found out it was my crank pulley bolt that loosened and caused the contact. Here in reality pistons don't just '' blow up'' from ambient temperature start up go have a seat in the corner with your ''volatile ebay pistons'' .

This damage is not caused by a loose crank pulley bolt. Your car would still be in time unless the pulley the timing belt was on came off.

Something cause the failure of that piston as can be seen on the top of the head. None of your other cylinders show any damage which rules out timing failure.

 

With that much damage,AND a missing Valve,it looks to me like it dropped the valve....especially considering THAT much damage to the head...

 

With that much damage,AND a missing Valve,it looks to me like it dropped the valve....especially considering THAT much damage to the head...

Thats EXACTLY what happened.

Sorry to see this.

 

If indeed this is the case,Id be calling the "shop" that reworked the head.
Those keepers can be a bitch,but....Damn!:tat:

 

Well, it looks like someone is going to be getting a new engine coming to them! With OEM parts this time

 

From the picture, you set the timing tensioner wrong, there is not enough tension on it, what are you referring to, (wasn't sure you pushed hard enough)? All you have to do is loosen the bolt on the tensioner pulley and turn the center until it is tight enough so that the pin in the tensioner will slide out and back in, it is a very simple process.

 

If indeed this is the case,Id be calling the "shop" that reworked the head.
Those keepers can be a bitch,but....Damn!:tat:

I don't understand, i rebuild heads all the time, and you know exactly when they are in right, there is no way to mess this up.

 

One more question, did you have the rods and main journals resized when you installed the arp fasteners?

 

I don't understand, i rebuild heads all the time, and you know exactly when they are in right, there is no way to mess this up.

I agree with what you are saying,but theres no telling what happened to the head after he got it back home....No offense intended

Actually it CAN be messed up,I took my head to a local shop,and supplied them with all new Valves/seals etc...Had them install them,and do a leak check...all was well,installed the head on the car,and one dead cylinder,0 compression.
I removed the head and found out that one of the new exhaust valves was about 1/16 too long...It wouldnt close.Now admittedly I should have looked each one over prior to delivering it to the shop,but they should have caught it also.

 

We were referring to the keepers, how if you do it right, that there is NO WAY that they can be messed up.

 

It looks like you have some non-oem valves. I've seen them break a lot of times.

 

From the picture, you set the timing tensioner wrong, there is not enough tension on it, what are you referring to, (wasn't sure you pushed hard enough)? All you have to do is loosen the bolt on the tensioner pulley and turn the center until it is tight enough so that the pin in the tensioner will slide out and back in, it is a very simple process.

Looks like the tensioner is upside down.

 

You are thinking of the 7 bolt, they turn counter clockwise to tension the belt, 6 bolts turn clockwise.

 

Even if the keepers weren't installed properly, how does that remove half the cylinder wall. I'm wondering if the rods were even torqued either.