Cracked engine block...a DIY tutorial :P
Some of you know the story on this already, but I'm curious if anyone can figure out what happened judging by the pictures (or have seen this before)?
And yes, that's my block...
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by metal-x »</TD></TR><TR><TD CLASS="quote">just jb weld those main caps
</TD></TR></TABLE>
And some 5 min epoxy and elbow grease, that thing will be goot as new
</TD></TR></TABLE>And some 5 min epoxy and elbow grease, that thing will be goot as new
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<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bbasso »</TD></TR><TR><TD CLASS="quote">So... what are you going to do?</TD></TR></TABLE>
You mean, what have I already done
...
I picked up a new shortblock.
You mean, what have I already done
...
I picked up a new shortblock.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by cheezthis »</TD></TR><TR><TD CLASS="quote">
You mean, what have I already done
...
I picked up a new shortblock.</TD></TR></TABLE>
Now that was quick, what block, another GSR???
You mean, what have I already done
...
I picked up a new shortblock.</TD></TR></TABLE>
Now that was quick, what block, another GSR???
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bbasso »</TD></TR><TR><TD CLASS="quote">Now that was quick</TD></TR></TABLE>
Actually, this all happened a few weeks back
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bbasso »</TD></TR><TR><TD CLASS="quote">what block, another GSR???</TD></TR></TABLE>
Hype Arrrrrrrrr
Actually, this all happened a few weeks back

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bbasso »</TD></TR><TR><TD CLASS="quote">what block, another GSR???</TD></TR></TABLE>
Hype Arrrrrrrrr
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bbasso »</TD></TR><TR><TD CLASS="quote">
Now that was quick, what block, another GSR???</TD></TR></TABLE>
Better!
Now that was quick, what block, another GSR???</TD></TR></TABLE>
Better!
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chris N »</TD></TR><TR><TD CLASS="quote">Better!</TD></TR></TABLE>
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bbasso »</TD></TR><TR><TD CLASS="quote">So Jay, your going to roll me at the next track event?</TD></TR></TABLE>
...
As for what happened...
Previous owner apparently opened up the bottom end (not sure why, never knew about any of this) and loctited that particular bolt for some reason. Over time, the bolt had started to back out, and thus, the crack is there.
The piece did not fall out until after I pulled the crank out the other night...
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bbasso »</TD></TR><TR><TD CLASS="quote">So Jay, your going to roll me at the next track event?</TD></TR></TABLE>
...
As for what happened...
Previous owner apparently opened up the bottom end (not sure why, never knew about any of this) and loctited that particular bolt for some reason. Over time, the bolt had started to back out, and thus, the crack is there.
The piece did not fall out until after I pulled the crank out the other night...
Also note, that there was some interest in this block. However, once they see this pictures...I don't know if there will be anymore. I'm making plans for a nice endtable
So, the crank would move slightly as it wasn't bolted down properly at that end. Oil would squirt out, etc.
Lucky it didn't break off, I'd think the piston would have slapped the head or the rod would have gone through the block, or something disastrous.
So why the hell did someone locktite it? Did that start the crack? or wtf?
Lucky it didn't break off, I'd think the piston would have slapped the head or the rod would have gone through the block, or something disastrous.
So why the hell did someone locktite it? Did that start the crack? or wtf?
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chris N »</TD></TR><TR><TD CLASS="quote">So, the crank would move slightly as it wasn't bolted down properly at that end. Oil would squirt out, etc.
Lucky it didn't break off, I'd think the piston would have slapped the head or the rod would have gone through the block, or something disastrous.
So why the hell did someone locktite it? Did that start the crack? or wtf?</TD></TR></TABLE>
Surprisingly, the crank was really held on tight...which is probably why it's condition is still good (thankfully).
I still wonder what the previous owner was doing in there though....
Lucky it didn't break off, I'd think the piston would have slapped the head or the rod would have gone through the block, or something disastrous.
So why the hell did someone locktite it? Did that start the crack? or wtf?</TD></TR></TABLE>
Surprisingly, the crank was really held on tight...which is probably why it's condition is still good (thankfully).
I still wonder what the previous owner was doing in there though....
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chris N »</TD></TR><TR><TD CLASS="quote">How was the oil getting out then?</TD></TR></TABLE>
It was still cracked. It's pretty weird. Maybe I'm just super lucky...and yet, not at the same time?
It was still cracked. It's pretty weird. Maybe I'm just super lucky...and yet, not at the same time?
When bolts are torqued, the torque spec is a calculation based on bolt stretch. If the hole can't get rid of what's in it (air, oil), it hydraulics (develops pressure in the bottom of the hole), the result being that the bolt feels torqued, a torque wrench can say that it is torqued but it isn't. Loctite weakens when hot so it doesn't really do anything any more...
Snap-ola. Sorry to see it but yeah, it'll make a really cool coffee table.
Snap-ola. Sorry to see it but yeah, it'll make a really cool coffee table.
I still wonder why it was loctited in the first place. I should look at it closer and see if the threads were stripped...or maybe he cracked it beforehand, band-aided back together, and sold it to me...hmm.
It last 70k miles, and still ran at that point, but once this was discovered...obviously didn't get put back together like that.
It last 70k miles, and still ran at that point, but once this was discovered...obviously didn't get put back together like that.



