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Old 08-19-2008   #41
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Re: Engine Clanking -WTF!!!

It's not water. I've done that, it doesn't smash one plug.
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Old 08-19-2008   #42
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Re: Engine Clanking -WTF!!!

The head is almost off. I'm just taking a break. Trying to keep all the parts as neat as I can because they may not be going back on for a looong time.

What I did find is that the turbo compressor wheel is in decent shape. I was thinking there was a chance the the compressor wheel was going to be missing, and is what entered the engine bay. Anyhow, it's there, and shaft play is still fine, and it spins freely likes it brand new. There are however, some small little imperfections at the ends of some of the blades. It's a brand new turbo and so I'm not sure why there are some rough edges on the blades.

What else I found is that I can easily turn over the motor by hand. I remember someone asking about that.

The timing belt was perfect.

I stuck an extension down the #4 cylinder, then stuck it down the #1. When I stuck it down the #1, it felt like there were more objects down there then just the piston
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Old 08-19-2008   #43
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Re: Engine Clanking -WTF!!!

Did you check to see if the throttle body shaft fell apart or a TB plate retainer bolt came off? Since that was the newest mod, and throttle body breakage has taken out a fair amount of motors.
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Old 08-19-2008   #44
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Re: Engine Clanking -WTF!!!

^oooh, good idea.
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Old 08-19-2008   #45
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Re: Engine Clanking -WTF!!!

Checked the TB, all seems to be fine. Both the screws are in there, it still functions fine.

But I just got the head off. Thanks for the quick help Andrew


I think this may be a bigger tragedy then Romeo & Juliet...
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Old 08-19-2008   #46
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Re: Engine Clanking -WTF!!!

Good news is that I don't think the block is trashed. The cylinder walls looked had no large gouges or anything of that sort. I'll be spending some time this week on the car, and removing the oil pan, and the rod/piston from that cylinder. Then I'll try to clean out that cylinder as best as I can, and get a better look at what condition that cylinder is in.

The head is screwed though, so if anyone has one laying around, let me know. I'll be reusing the Crower springs/retainers from this head, the cams, the rockers, and the 3g HLA's. The rest is just worth it's weight in aluminum I think.
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Old 08-19-2008   #47
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Re: Engine Clanking -WTF!!!

holy fucking wow... apparently you had an emo valve that didn't wanna live anymore...
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Old 08-19-2008   #48
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Re: Engine Clanking -WTF!!!

^word, any idea why/how that happened after tearing down the motor?
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Old 08-19-2008   #49
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Re: Engine Clanking -WTF!!!

I'd like to get some honest advice here. If they cylinder walls aren't horrible, is this something I could simply rehone, and reinstall new parts into there? Or is this a must that the block be removed, remachined, the whole works?

Steve or anyone on here who is somewhat experienced with this, please help me out as I just paid a nice chunk of money to get this thing built maybe 1 1/2 years ago, the right way, from a shop, who did a great job, and now I'm looking at having to drop a huge chunk of money to get it done all over again because of what appears to be a freak accident that wrecked all this. If there are any ways to redo this nicely, but not having to go through the whole 9 yards, I am all ears.

I remember Scheides (I think it was Scheides) putting up a post awhile back about people rebuilding their motors by just rehoning them. Obviouslly they weren't motors that look like what mine looks like now. But if the walls really aren't that bad, could this be an option?
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Old 08-19-2008   #50
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Re: Engine Clanking -WTF!!!

Quote:
Originally Posted by turbotalon1g View Post
^word, any idea why/how that happened after tearing down the motor?
Right now, nothing. The TB is fine, the cams still look good, everything under the Valve Cover looked good except for the busted rocker (which must have busted due to the valve in the cylinder). No idea what caused the valve to fall into the cylinder. I'm still trying to understand why my tach stopped, and if that has anything to do with anything here. Did maybe that injector die or it's clogged, caused it to run lean, and voila? I will be hooking the injectors up to a battery to test and make sure they all still function, and will clean them with some carb cleaner.
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Old 08-19-2008   #51
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Re: Engine Clanking -WTF!!!

Oh shit! Good luck with everything.
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Old 08-19-2008   #52
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Re: Engine Clanking -WTF!!!

Deffinetly an option man. If the cylinder walls aren't scored You can hone the bitch with a powerdrill and drop in a new piston.

Is it going to be as tight a clearance as the other 3? No, but It'll get you down the road through the summer and then some. Is the rod OK?

I hope much metal didn't make it through your oil pump, turbo, bearings, etc.
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Old 08-19-2008   #53
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Re: Engine Clanking -WTF!!!

Maybe when I get everything cleaned up in there, I'll try and get one of you smarter engine folks over here and take a look, and give me some words of wisdom.
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Old 08-19-2008   #54
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Re: Engine Clanking -WTF!!!

If the cylinder walls don't have any major scoring that your fingernail would catch on, you can rehone it and drop a new piston in there. It really depends on the condition of the cylinder wall. Being that the piston has an actual hole in it, metal fragments are most likely in your pan. If that's the case, than you might be able to get away with honing that cylinder, but if any metal got through the pickup screen and filter and into your bearings, a full rebuild might be best because you'd have to pull the motor anyways. I'll try and find a minute to get up there. Keep me informed on what you find.
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Old 08-19-2008   #55
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Re: Engine Clanking -WTF!!!

Before I saw the findings, I asked my uncle (the most mechanically capable person I know) how or why this would have happened, and he thought something foreign entered the cylinder, piston pushed it against a valve/hit spark plug, then the cam trying to open the stuck valve breaks rocker arm, etc. I wonder if something got in there?

I personally have honed/installed a new piston and ring set into a cylinder with three giant gouges in the thrust side of the wall, probably.050" deep, and the car had 155 compression in that cylinder and didnt use excessive oil.
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Old 08-19-2008   #56
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Re: Engine Clanking -WTF!!!

I sprayed some brake cleaner on the walls real quick and got the walls pretty clean of oil. There are definatly little marks in there. I can feel them with my fingernail. I'm thinking nothing that couldn't get machined out though. But also not sure if a little hone dealy on a drill would get it out though.
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Old 08-19-2008   #57
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Re: Engine Clanking -WTF!!!

Quote:
Originally Posted by sleepydsm View Post
Before I saw the findings, I asked my uncle (the most mechanically capable person I know) how or why this would have happened, and he thought something foreign entered the cylinder, piston pushed it against a valve/hit spark plug, then the cam trying to open the stuck valve breaks rocker arm, etc. I wonder if something got in there?

I personally have honed/installed a new piston and ring set into a cylinder with three giant gouges in the thrust side of the wall, probably.050" deep, and the car had 155 compression in that cylinder and didnt use excessive oil.
Hmmm... you live in Shoreview right? You're not all that far from me. Maybe someday if you don't mind, you should stop out here for just a minute and see how my walls compare with the ones you did.
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Old 08-19-2008   #58
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Re: Engine Clanking -WTF!!!

Your best bet is to run a hone through the cyllinder, then re check it. You could possibly get away with just throwing a new piston in that cyllinder (best case scenario) And as others have said, it's prettymuch guaranteed that there's metal shavings in your pan, so you can hope the oil pump didn't pick any of it up
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Old 08-19-2008   #59
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Re: Engine Clanking -WTF!!!

I'll have to take a good look at the oil pan when I pull it off. I didn't think the oil looked too bad when I drained it out. Anything not perfect in it I was kind of blaming that on the old dirty drain pan that I used (should have cleaned it out before hand).

Is there anyway to pump a ton of oil through the motor to try and flush as much of that stuff out of there as possible before cranking her over?
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Old 08-19-2008   #60
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Re: Engine Clanking -WTF!!!

Dam dude that sucks.

Spin the oil pump with a drill. But I would pull the pan and clean it first. Be sure to put something in place to catch the oil that would be going to the head. But you will still push some oil into the bearings as well.

You can get away with a fair amount on a motor. It may not be the best it can be, but running ok is better than in the garage broken. Be sure to have the rod checked as well.
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