I broke it...
08-31-2008, 04:21 PM
#1
I broke it...
Well, here it is. As another milestone in my quest to do things differently, I managed to not break a top ring land like everyone else, I broke the middle and bottom ones 
The oil spreader rings (well, what was left of them) were the only things holding most of the chunks of piston together. All the debris on the left was found in the oil pan.
Close up...
Also, the car had developed a nasty rattle a while after doing this, and I was able to find the source. The top bolt of the fixed timing chain guide had completely come out and was hitting against the plug in the head.
$4 for another bolt, and its special order... lucky me.
The oil spreader rings (well, what was left of them) were the only things holding most of the chunks of piston together. All the debris on the left was found in the oil pan.
Close up...
Also, the car had developed a nasty rattle a while after doing this, and I was able to find the source. The top bolt of the fixed timing chain guide had completely come out and was hitting against the plug in the head.
$4 for another bolt, and its special order... lucky me.
08-31-2008, 04:23 PM
#3
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Well, here it is. As another milestone in my quest to do things differently, I managed to not break a top ring land like everyone else, I broke the middle and bottom ones
The oil spreader rings (well, what was left of them) were the only things holding most of the chunks of piston together. All the debris on the left was found in the oil pan.
Also, the car had developed a nasty rattle a while after doing this, and I was able to find the source. The top bolt of the fixed timing chain guide had completely come out and was hitting against the plug in the head. $4 for another bolt, and its special order... lucky me.
The oil spreader rings (well, what was left of them) were the only things holding most of the chunks of piston together. All the debris on the left was found in the oil pan.
Also, the car had developed a nasty rattle a while after doing this, and I was able to find the source. The top bolt of the fixed timing chain guide had completely come out and was hitting against the plug in the head.
$4 for another bolt, and its special order... lucky me.Over achiever? lol
You have all the parts to rebuild right?
08-31-2008, 04:29 PM
#6
That plus some. Its been blown for like 5 months now, just finally getting around to doing something about it. Have a little pile of stuff for it...
yeah, gimme one sec...
I try
yeah, gimme one sec...
I try
Last edited by ItalianJoe1; 08-31-2008 at 04:29 PM. Reason: Automerged Doublepost
08-31-2008, 04:35 PM
#9
Yeah, looking at the head, the ports are retardedly small on the exhaust side. I'm getting a blown engine core in a week after I take it out of a local guy's car, I might have to get the head ported. I am gonna have a hard time putting the stocker back on after seeing how shitty it is, but I don't have the money/time for a built head right now.
08-31-2008, 04:36 PM
#10
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How does the scratch look now that you can actually see it? That's my biggest fear, which is why I'm trying to get mine warrantied and when I get it back new pistons will go in that same week.
08-31-2008, 04:39 PM
#11
Haz l33t wheelz.
Yeah, looking at the head, the ports are retardedly small on the exhaust side. I'm getting a blown engine core in a week after I take it out of a local guy's car, I might have to get the head ported. I am gonna have a hard time putting the stocker back on after seeing how shitty it is, but I don't have the money/time for a built head right now.
08-31-2008, 04:41 PM
#12
I actually spent about 20 mins with a carbide bit on the exhaust ports before taking the head to be worked on, I couldn't bear to leave it alone, the outlets actually taper down before they exit... what kind of stupid **** designed this thing is beyond me.
Last edited by ItalianJoe1; 08-31-2008 at 04:41 PM. Reason: Automerged Doublepost
08-31-2008, 04:44 PM
#14
Haz l33t wheelz.
what's the diff. between shortblock and longblock? kind of a newb Q. i know the diff. between big and small block, is that kinda similar, but for smaller engines?
Last edited by ls1fbody; 08-31-2008 at 04:44 PM. Reason: Automerged Doublepost
08-31-2008, 04:46 PM
#17
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Not that bad, very minor. Unfortunatly for me, I have no choice but to just put the new pistons right back in this block, I'm out of warranty and I would have spent too much putting the car back stock anyway to get warrantied, then still had to do the work. I'll just deal with a little less compression on that one if I need to. Plan to actually build a shortblock one day for the car, so this will have to hold until then.
I actually spent about 20 mins with a carbide bit on the exhaust ports before taking the head to be worked on, I couldn't bear to leave it alone, the outlets actually taper down before they exit... what kind of stupid **** designed this thing is beyond me.
I actually spent about 20 mins with a carbide bit on the exhaust ports before taking the head to be worked on, I couldn't bear to leave it alone, the outlets actually taper down before they exit... what kind of stupid **** designed this thing is beyond me.
The scratch is to deep to hone? say take out .010" out get diamond .010" over bore pistons?
08-31-2008, 04:46 PM
#18
Problem is, its only one cyl, i'm not gonna hone them all out myself, and i'm not pulling the engine from the car right now to send it out and have it bored.
Last edited by ItalianJoe1; 08-31-2008 at 04:46 PM. Reason: Automerged Doublepost
08-31-2008, 04:51 PM
#21
Haz l33t wheelz.
Short block is not including the head, just the block and internals. I will be getting a spare block that has some internal damage, I'm thinking about sending it out and having it built right as funds allow. Built head will probably come first, as that will actually make real power and is easier to ship around if needed.
.
.
08-31-2008, 04:53 PM
#22
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Short block is not including the head, just the block and internals. I will be getting a spare block that has some internal damage, I'm thinking about sending it out and having it built right as funds allow. Built head will probably come first, as that will actually make real power and is easier to ship around if needed.
Problem is, its only one cyl, i'm not gonna hone them all out myself, and i'm not pulling the engine from the car right now to send it out and have it bored.
Problem is, its only one cyl, i'm not gonna hone them all out myself, and i'm not pulling the engine from the car right now to send it out and have it bored.
Oh I thought you had acess to the tools required to do a hone job. Sunnen makes a nice 10 inch bar that would work good for this application. Rough with 45 grit and finish with 120.
08-31-2008, 05:00 PM
#24
Honing is usually done by hand, and is therefore not desirable to open up all cyls or very much due to the lack of precision. There is a risk of making the cyl uneven, giving it an hourglass shape or a bulge in the middle.
And yes, if you significantly open up the bore, larger pistons are needed.
08-31-2008, 05:00 PM
#25
Haz l33t wheelz.
any difference, even that slight would create unbalanced stress. the greater force of that single cylinder would put a lot of stress on the driveline... just looking at it logically, i may be wrong.