i have a leak of coolant on my block. it appears to be a crack on the block which was previously jb'ed up by the previous owner. i bought the regular jb one but its taking forever to cure. plus its like 29 degrees outside.
th crack is below the header by the alternator on an h22

is there anythign else that would do a better job?

i cannot afford welding it correctly becasue i dont have a job right now.

 

the regular kind is the only jb weld i would use. the quick dry **** is worthless if you are trying to seal something up. You could run a space heater out and blow it on the area to help cure time since its cold, but you are going to have to wait 24hrs regardless to be sure.

 

now when you say regular your reffering to the 2 tubes correct?
becaseu the have the other one that is like a bar.

http://jbweld.net/products/jbweld.php

or

http://jbweld.net/products/jbstik.php

or this one i found to be interesting

http://jbweld.net/products/water.php

i included that last one because now i have to drain the coolant to make sure it dosent seep through while letting the above two choices cure?
anymore input?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by djsire &raquo;</TD></TR><TR><TD CLASS="quote">
http://jbweld.net/products/jbweld.php
</TD></TR></TABLE>

This is the one i would use. Definitely dont use the second one, its no good for sealing any pressurized liquid. Ive never used the third one, but it sounds promising. If you decide to use the first one (it is what i would use), Drain the coolant, take sandpaper and scuff up the area, then clean it up really good and make sure its completely dry with no residue on the surface.

 

ok i did it.

i couldnt really scuff up the area becaseu it was hard to get to. but i cleaned it off with some brake cleaner and dried it up.

then i put copious amounts of the jb weld on there. and smoothed it out. ill let you konw what happens tommorow.

if this doesnt work im gonna try the water weld one.

 

If the area was clean and you let it cure the proper amount of time, i think you will be in good shape

 

**** i just went too look at it and i seen green fluid still.

this doesnt look good.

im gonna pick up the water weld stuff tommorow

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by djsire &raquo;</TD></TR><TR><TD CLASS="quote">**** i just went too look at it and i seen green fluid still.

this doesnt look good.

im gonna pick up the water weld stuff tommorow</TD></TR></TABLE>

did you drain the block completely (or at least below the level of the crack)?? with the regular stuff, if any of the coolant seeped through the crack under the sealing surface, it wouldnt work. Also, it probably needs at least 12hrs? before it really starts to adhere to the surface, then another 12hrs to fully harden. Thats within the reccomended air temps as well.

let me know how the water weld works out. It sounds like it expands as it hardens, so make sure you get it into the crack really well. Ide clean out as much of the other jb weld as you can too.

 

i dumped everything out the rad.
i dont know how to get the rest of the fluid out

 

also i cant even see the crack@@@

 

use the stuff in a can that looks like rabbit turds. I used it on my delivery van with 400k miles and it stopped the biggest leak you ever seen. or you can pull a myth busters and use an egg

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by djsire &raquo;</TD></TR><TR><TD CLASS="quote">i dumped everything out the rad.
i dont know how to get the rest of the fluid out </TD></TR></TABLE>

well theres your problem. the block is filled with coolant as well, you have to take a bolt out in the back of the block to drain it.

i dunno what to tell you about not being able to see the crack. since the JB weld didnt seal well, you should be able to take a knife or something and wedge it under and pry/pop the jb weld off for the most part.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by gritsak &raquo;</TD></TR><TR><TD CLASS="quote">

well theres your problem. the block is filled with coolant as well, you have to take a bolt out in the back of the block to drain it.

i dunno what to tell you about not being able to see the crack. since the JB weld didnt seal well, you should be able to take a knife or something and wedge it under and pry/pop the jb weld off for the most part. </TD></TR></TABLE>

do you have pics of the drain plug?

i have exavtly 24 hours to get this done

 

i'de say your best bet now is to try that water weld stuff. Since it expands as it gets hard, it shouldnt matter that the coolant is still in the block (at least thats what it seems from the description).

 

ok i used the cheap epoxy stick that you rub with your hands. (couldnt find the water weld)

and so far its working!!!!!

i ran the car for about 30 minutes and not a hint of leakage.

im taking it for a spin now.