Dave's Evo X Build/The Life of Dave blog

[Murlo26]

Fair enough, i will see if i can run up there tomorrow after work...i am working far away tomorrow, Gaylord MN...but i usually go in late and leave early those days, lol.

[Murlo26]

Great news! My luck turned a bit today...the head and turbo are both in great shape...the head is just slightly scuffed on the cylinder that went done but Danny said it isn't a big deal to steel wool and have their machinist clean it up too.

Motor pics...ouch time! (taken from two different cameras, one was the iphone, both don't have a flash, sorry no money for a camera now, lol)


http://i21.photobucket.com/albums/b252/Murlo26/de799a55.jpg
http://i21.photobucket.com/albums/b252/Murlo26/888a7c00.jpg
http://i21.photobucket.com/albums/b252/Murlo26/84a46b55.jpg
http://i21.photobucket.com/albums/b252/Murlo26/dd19f107.jpg
http://i21.photobucket.com/albums/b252/Murlo26/bb3a9651.jpg
Other side:
http://i21.photobucket.com/albums/b252/Murlo26/17ea47c2.jpg
http://i21.photobucket.com/albums/b252/Murlo26/f678cfd8.jpg
http://i21.photobucket.com/albums/b252/Murlo26/c8e98b23.jpg
http://i21.photobucket.com/albums/b252/Murlo26/267a17e8.jpg
3rd down, the one scuffed a bit
http://i21.photobucket.com/albums/b252/Murlo26/47c753ca.jpg
Two big piston chunks
http://i21.photobucket.com/albums/b252/Murlo26/PIC_0059.jpg
http://i21.photobucket.com/albums/b252/Murlo26/PIC_0044.jpg
http://i21.photobucket.com/albums/b252/Murlo26/PIC_0045.jpg
http://i21.photobucket.com/albums/b252/Murlo26/PIC_0047.jpg
NOthing went through the turbo !
http://i21.photobucket.com/albums/b252/Murlo26/PIC_0055.jpg
http://i21.photobucket.com/albums/b252/Murlo26/PIC_0057.jpg

[Murlo26]

Danny said that there were no signs of detonation...fuel was good.

He said it appeared it broke on the way down, which is good and saved my head. He said it looks like the rod basically formed an S and snapped and caused the failure.

Funny, everyone says rod bolts let go on these...that end of the rod is still on there, lol.

[scheides]

Holy shit! So the rod bolts were fine, and the rod actually just let go? That is nasty carnage; great pics! great news on the head and turbo. Does this change your plans at all?

[Murlo26]

Holy shit! So the rod bolts were fine, and the rod actually just let go? That is nasty carnage; great pics! great news on the head and turbo. Does this change your plans at all?

Yea, Danny said this just simply looks like the rods let go on the power stroke, basically classic too much power/torque. He said he saw not signs of detonation and yea the bottom half of the rod can still spin on the crank :)

It changes it some yes...my head will be getting DB's machinist's race porting when he is in there for putting the oversized valves in and assembling my head. My head should flow rather well after all is said and done :) Especially with the GSC S2's.

Otherwise the turbo being fine and the being fine are just bonus's. I was planning on the head being bad for sure, which is 1000 for the core roughly, so i will use that money for supplying other parts of the build that i added in like the new turbo.

[Shane@DBPerformance]

I just took a look at it and it doesn't really look like it was a knock/detonation problem. The 3 other cylinders look mint, there isn't aluminum build up in the combustion chamber of the cylinder that took a shit, all the spark plugs look fine except for the one being covered in oil in the bad cylinder.

Rod bolts usually will usually break/stretch from high RPMs when the pistons pull on them on the up stroke and rods usually bend on the down/compression stroke or on the up stroke when you suck in water/blow a HG and fill the cylinder with coolant.

[Murlo26]

I just took a look at it and it doesn't really look like it was a knock/detonation problem. The 3 other cylinders look mint, there isn't aluminum build up in the combustion chamber of the cylinder that took a shit, all the spark plugs look fine except for the one being covered in oil in the bad cylinder.

Rod bolts usually will usually break/stretch from high RPMs when the pistons pull on them on the up stroke and rods usually bend on the down/compression stroke or on the up stroke when you suck in water/blow a HG and fill the cylinder with coolant.

So you are thinking just too much torque/power for the stock rods to handle it?

[Shane@DBPerformance]

Unless it was an oiling problem and it spun a rod bearing and didn't hear it and once the bearing was totally gone the rod stuck to the crank and beat the up the block.

[Murlo26]

Unless it was an oiling problem and it spun a rod bearing and didn't hear it and once the bearing was totally gone the rod stuck to the crank and beat the up the block.

Would it of been making noise if this happened? Just curious for next time, with my luck this won't be my last motor, lol.

[Shane@DBPerformance]

It would be making the ever popular rod knock noise.