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View Full Version : Engine Clanking -WTF!!!

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Halon
08-20-2008, 11:33 AM
They are just stock valves, with Crower springs/retainers.
Halon
08-20-2008, 11:34 AM
I'll try and see if I can't get the oil pan off tonight, but I'm having dinner with the European guys so I might not be able to get it completely off by tonight.
Goat Blower
08-20-2008, 12:47 PM
I've got a couple different grit bottle hones if you need one, much better the crap they sell at Northern. I'd just hone it and drop in a new rod/piston, I think you'll be fine.

Good luck finding a used Mahle/Eagle combo, that's not too common. But you should be able to buy one of each new, I have before.
Speedfreak
08-20-2008, 12:49 PM
Judging from the pictures, it looks like pre-ignition.



That's the first thing I thought as well once I saw the pics. But it also could just be from shit smashing around?
blackrosenova400
08-20-2008, 12:50 PM
Maybe your tach thing has something to do with the spark plug. Looks like maybe it created a short to ground, maybe screwing with your ignition system?
niterydr
08-20-2008, 03:55 PM
That's the first thing I thought as well once I saw the pics. But it also could just be from shit smashing around?

I didn't want to comment as it really is difficult to tell with metal debris also.

It is a case of the chicken or the egg, the rest of the cylinders look okay. I'd maybe get the injector flow checked just in case.
scheides
08-20-2008, 04:27 PM
Dude, THERE's your problem!!!

http://www.mitsustyle.com/forums/attachment.php?attachmentid=7657&stc=1&d=1219267622
munchgsx
08-20-2008, 04:40 PM
I have acouple of rockers too. But it appears that's the least of you problems
Halon
08-20-2008, 04:45 PM
From what I've gathered from many others, is that OEM valves are of a 2 piece design, which means when they are built, they start as 2 pieces and are then fused together some how to create a single valve. And that is where mine snapped, about where they would have been fused. Apparently 2 piece valves are weaker at that fuse point as well. Maybe it was just old and ready to go, and thank god it atleast died at a lower RPM and only a couple blocks from my house, rather then at 8K RPM on DB's dyno.
MustGoFaster
08-20-2008, 10:10 PM
What are you guys speculating (Shane, Mo, Swanny) about? Pre ignition causing the valve to snap and dominate the shit out of everything it can? Seems relatively obvious to me that this was a random valve failure. Even more so after what he just posted.