I just finished my all motor B20v setup started it and it sounds great very healthy...then the next morning I notice while the car is running right under where the headers bolt up the block has a very small hair line crack and anti freeze will make a small bubble and drip out the block can I jus get a professionall to weld it? I paid to much 2 finally assemble the motor dnt want to disassemble and reassemble again really Trying 2 prevent taking it apart again any suggestions? Plzz

 

Vexxxxed smh

 

Help pleaseee.......

 

50 views and no help...?!!

 

jb weld?

 

Can I jus drop my headers and have sum1 weld it will it leak again

 

Stop bumping every 5 minutes.

Anyone here have a crystal ball? Anyone? Nope. How could anyone answer this?

 

this is why it pays to pressure check the blocks water jackets before any build...welding while the cylinder head and block have been mated together and hoping for it to hold without warping and destroying the HG seal are a bit optimistic...you can weld it and if you get lucky then rock and roll jump in the air and smack your heels...

 

jb weld

 

That really sucks...
You need to remove and disassemble the block to accurately inspect and repair this crack...I dont see any other way around it. Try and half-*** it and dont be surprised if you get half *** results.
Got any pics?

 

Take it to a machine shop and see what they say.

 

K&W block sealer will last for a month or so.

 

Are you sure the block is cracked? Not sure why a block would have a hairline crack. Just making sure you didn't mis-diagnose.

 

I'm sure its very thin crack a few drops of antifreeze drip out slowly...

 

A long time ago, when I was putting on my ghettofied turbo, I had to do some 'clearing of the webbing'...which required me and a angle grinder. I put a hole about the size of a pencil eraser in the dam block, all the way through to the water jacket. yeah, dont ask. Regardless, I patched it with JB weld and it held until the car was plowed into by a drunk driver.

JB weld it. Make sure its super clean, and make sure you mix it right, and let it set up/cure for a good amount of time.

 

Anymore suggestion I figured if I cleaned it up well prep it an welded it should be fine

 

Anymore suggestions

 

get a new one lol