How do I tell if I have a Blown HG/Cracked Head or Cracked Block??
#1
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
Heres the story. A buddy of mine gave me this and said it had a cracked block, he didnt want to deal with it anymore. It was in his SC and had a leaking coolant line and he drove it some, not sure for how long or how far.
![](http://i161.photobucket.com/albums/t229/KingFish714/SC300%201JZGTE/Cracked1JZ006.jpg)
![](http://i161.photobucket.com/albums/t229/KingFish714/SC300%201JZGTE/IMG_2149.jpg)
So I started to tear it down and got everything disassembled but cant tell if it has a Blown HG, Bad-CRACKED warped head or a CRACKED BLOCK. The head looks to be OK but has rust inside, must've got water-coolant in it. No visible signs of cracks anywhere on the head.
Im not sure what a Blown HG looks like and the block looks good so far. I need to turn the crank tomorrow to see if Cylinder 1 and 6 are damaged. The inside cylinders looks to be OK. Would the crack be inside the Cylinder wall hence cracked block?
Ive done basic repairs but nothing like this. A little advice and what you think of the pics would help.
Number 1 spark plug came out nasty but the rest were OK.
![](http://i161.photobucket.com/albums/t229/KingFish714/SC300%201JZGTE/IMG_2162.jpg)
Rust inside valve cover.
![](http://i161.photobucket.com/albums/t229/KingFish714/SC300%201JZGTE/IMG_2169-1.jpg)
![](http://i161.photobucket.com/albums/t229/KingFish714/SC300%201JZGTE/IMG_2171.jpg)
![](http://i161.photobucket.com/albums/t229/KingFish714/SC300%201JZGTE/IMG_2179.jpg)
Headgasket
![](http://i161.photobucket.com/albums/t229/KingFish714/SC300%201JZGTE/IMG_2178.jpg)
![](http://i161.photobucket.com/albums/t229/KingFish714/SC300%201JZGTE/IMG_2177.jpg)
Head shots
![](http://i161.photobucket.com/albums/t229/KingFish714/SC300%201JZGTE/IMG_2182.jpg)
Block shot
![](http://i161.photobucket.com/albums/t229/KingFish714/SC300%201JZGTE/Cracked1JZ006.jpg)
![](http://i161.photobucket.com/albums/t229/KingFish714/SC300%201JZGTE/IMG_2149.jpg)
So I started to tear it down and got everything disassembled but cant tell if it has a Blown HG, Bad-CRACKED warped head or a CRACKED BLOCK. The head looks to be OK but has rust inside, must've got water-coolant in it. No visible signs of cracks anywhere on the head.
Im not sure what a Blown HG looks like and the block looks good so far. I need to turn the crank tomorrow to see if Cylinder 1 and 6 are damaged. The inside cylinders looks to be OK. Would the crack be inside the Cylinder wall hence cracked block?
Ive done basic repairs but nothing like this. A little advice and what you think of the pics would help.
Number 1 spark plug came out nasty but the rest were OK.
![](http://i161.photobucket.com/albums/t229/KingFish714/SC300%201JZGTE/IMG_2162.jpg)
Rust inside valve cover.
![](http://i161.photobucket.com/albums/t229/KingFish714/SC300%201JZGTE/IMG_2169-1.jpg)
![](http://i161.photobucket.com/albums/t229/KingFish714/SC300%201JZGTE/IMG_2171.jpg)
![](http://i161.photobucket.com/albums/t229/KingFish714/SC300%201JZGTE/IMG_2179.jpg)
Headgasket
![](http://i161.photobucket.com/albums/t229/KingFish714/SC300%201JZGTE/IMG_2178.jpg)
![](http://i161.photobucket.com/albums/t229/KingFish714/SC300%201JZGTE/IMG_2177.jpg)
Head shots
![](http://i161.photobucket.com/albums/t229/KingFish714/SC300%201JZGTE/IMG_2182.jpg)
Block shot
![](http://i161.photobucket.com/albums/t229/KingFish714/SC300%201JZGTE/IMG_2174.jpg)
#4
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
ARP studs, do I need just the head studs or the main studs too? Just curious, where does the main studs go?
http://store.driftmotion.com/static/i-arp203-4205.php
http://store.driftmotion.com/static/i-arp203-5405.php
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