Questions Crack block
Hey guys i have a big problem with my block and i wanted to see another point of view before do something legal to the company work on my block
So, I installed a Darton sleeved on the block in order to make an o-ring on it, we build the engine put it on the car. On the date when we finally started the car, the block started to leak water outside of the engine, I'm like WTF, this is a brand new engine! This are all are new machine work and even every single bolt on the motor is new. Not to mention that we have a lot of knowledge on building engines with different type of sleeved work. We've never seen something like that, so i call the shop who install the sleeved and they told me no problem we take care of you when we take the block to the shop they said the black crack because the guy who install the o-ring they make something wrong and now I need to pay for the block now. We also paid for the machine work $240 for bore,hone,and to deck the block.
Also we have a friend and he made the block with the same company but his block did not have an o-ring, they have step deck and have the same issue.
You know guys when you build an engine, if your like us, we put all brand new parts! That engine from our "True street integra" did not even get to go on the dyno. We tried different ways to fix it, weld it and put some Moroso cement to fix it and got no where! We started the car and 1 minute later it began to leak water and now that company wants me to pay for the other block and and I am super pissed, because now I have no engine and we paid for a hell lot of work!
Here is all the pics thanks for the input!!! LMK what you guys think!






So, I installed a Darton sleeved on the block in order to make an o-ring on it, we build the engine put it on the car. On the date when we finally started the car, the block started to leak water outside of the engine, I'm like WTF, this is a brand new engine! This are all are new machine work and even every single bolt on the motor is new. Not to mention that we have a lot of knowledge on building engines with different type of sleeved work. We've never seen something like that, so i call the shop who install the sleeved and they told me no problem we take care of you when we take the block to the shop they said the black crack because the guy who install the o-ring they make something wrong and now I need to pay for the block now. We also paid for the machine work $240 for bore,hone,and to deck the block.
Also we have a friend and he made the block with the same company but his block did not have an o-ring, they have step deck and have the same issue.
You know guys when you build an engine, if your like us, we put all brand new parts! That engine from our "True street integra" did not even get to go on the dyno. We tried different ways to fix it, weld it and put some Moroso cement to fix it and got no where! We started the car and 1 minute later it began to leak water and now that company wants me to pay for the other block and and I am super pissed, because now I have no engine and we paid for a hell lot of work!
Here is all the pics thanks for the input!!! LMK what you guys think!






i had a block that cracked in the exacttt same spot!!
I even tried to weld it and the weld kept cracking (on it's own). then the weld ontop of that weld would crack, and so on, and so on..
It turned out to be builder's error. Used a airgun to blow some liquid out from the headstud holes. Guess i didn't get all of it or missed a hole. When i tq the head down the studs kept pushing the liquid down (the liquid was not passing the threads) and eventually the block gave.
This may not be the case for you, but thats what happened with me
I even tried to weld it and the weld kept cracking (on it's own). then the weld ontop of that weld would crack, and so on, and so on..
It turned out to be builder's error. Used a airgun to blow some liquid out from the headstud holes. Guess i didn't get all of it or missed a hole. When i tq the head down the studs kept pushing the liquid down (the liquid was not passing the threads) and eventually the block gave.
This may not be the case for you, but thats what happened with me
I had the same issue, mine was a faulty A2W IC, it leaked and water in the cyl is a bad deal. tried to lift the head, ended up cracking the block just like that
I have also had this issue.I was putting the motor together and heard a loud crack while torquing the headstuds.all headstuds held tight and didn't see anything abvious until i had the engine in and tried to put water in it.at first I thought it was the water pipe o-ring but after replacing the seals and inspecting it closer I realized the block had cracked in the back.sorry bro I know exactly how you are feeling right now...
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Sucks but in reality. even tho its their fault. theres really nothing you can do at this point motors toghether of course they are gonna blame you. they dont want it on them. so take them to court. see what happens its worth a try .but other then that change machine shops. and keep going. things like this have happened to all of us . but we learn from our mistakes.take it to another machine shop and find out some backround on them..and sorry for your block. hope you get another one going and it goes well.
Looks like it was from torqueing the studs down. I had it happen on an engine that had 1/2 head studs, we used an engine rebuilders block and it sealed it right up.
That is the plans but want to make sure and see different points of view!!!
**** happens. I've seen this happen on many occasions with sleeves from almost everyone out there.
You're working with 20 year old cast pieces. You're pressing sleeves in. You're putting head studs in and clamping things much tighter than stock.
At the end of the day it's clear this is a weak spot on the B series block, we know that. Since these are cast, they are not 100% identical from one to the next in regards to thickness and such in areas like this. You really can have one block that's stronger than the next.
I've had this happen to one of my blocks too.
I know you want to blame someone, but there's just too many wrongs with what you're trying to do with this motor and sometimes **** happens. It sucks, i know, but it's racing, chalk it up and move on.
You're working with 20 year old cast pieces. You're pressing sleeves in. You're putting head studs in and clamping things much tighter than stock.
At the end of the day it's clear this is a weak spot on the B series block, we know that. Since these are cast, they are not 100% identical from one to the next in regards to thickness and such in areas like this. You really can have one block that's stronger than the next.
I've had this happen to one of my blocks too.
I know you want to blame someone, but there's just too many wrongs with what you're trying to do with this motor and sometimes **** happens. It sucks, i know, but it's racing, chalk it up and move on.
We had it happen twice to a friend of mine once from when the head lifted it cracked in that same spot and once with oil still sitting in the stud hole and after torquing the head i heard it crack...Both times the blocks were welded and no more issues after that.




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