Similar to that damage.... (maybe a little longer)

JB Weld claims it can hold up to 500 Degrees... and its as hard as steel once dried... Any Ideas..input etc...

 

Actually, every now and then we get this kind of thing at the subaru dealer I work for. The key way gets stuck on the crank pulley and shears off like what you posted on the picture. We use JB weld to fix this problem, works excellent. Just mix it properly and shape it so the key way fits properly and your set. Like I said been doing this type of repair for years and never had a problem, you should be fine.

 

JB weld is really that strong? The only thing i guess i would be worried about is the JB weld not adhearing to the workpeice properly.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ExploitedRacing &raquo;</TD></TR><TR><TD CLASS="quote">JB weld is really that strong? The only thing i guess i would be worried about is the JB weld not adhearing to the workpeice properly.
</TD></TR></TABLE>

I would worry about it cracking off after a certain amount of time. This product
http://www.coolchem.com and jb weld will get the job done.

 

i break jb weld, it doesnt work for ****, imo. it cracked in half, dont half *** it, go get someone to weld it for you

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wantboost &raquo;</TD></TR><TR><TD CLASS="quote">i break jb weld, it doesnt work for ****, imo. it cracked in half, dont half *** it, go get someone to weld it for you</TD></TR></TABLE>

if you can crack it easily then you definitly didn't mix it right...

 

i didnt mix it, had someone else do it. trust me, the **** is easy to break. its a halfass approach to fixing something properly

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wantboost &raquo;</TD></TR><TR><TD CLASS="quote">i didnt mix it, had someone else do it. trust me, the **** is easy to break. its a halfass approach to fixing something properly</TD></TR></TABLE>

Um.. They use it in Rotary engines.. Which is Serious Heat higher than that of a piston engine and it lasts years.. The fault lies in you /someone else..

 

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

Um.. They use it in Rotary engines.. Which is Serious Heat higher than that of a piston engine and it lasts years.. The fault lies in you /someone else.. </TD></TR></TABLE>

If you are going to argue with the guy you may want to talk about the same type of stress factor. I don't see anywhere in his original post that said anything about the product failing under high temperature.

 

yea, it didnt fail because of heat, it failed because of torsional stress, pushing/pulling etc

just my .02, but i wouldnt even use jb weld to fix my lawnmower

 

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

If you are going to argue with the guy you may want to talk about the same type of stress factor. I don't see anywhere in his original post that said anything about the product failing under high temperature. </TD></TR></TABLE>

while your point is valid I have other experience that shows that torsional stresses can be as great. I have seen the army use it on certain jet repairs in operation times as well! Thats a statement of its ability!

As for the other guy.. He has shown a pretty strong dislike for the product and I am inclined to believe that it is ignorantly so.

 

how the heck is JB weld going to weld itself onto the crankshaft... I gaurantee anyone that after JB weld cures I can use a 12mm wrench from Walmart and knock the JB weld into pieces... IF not at least I could knock it off the crank where it supposedly adhered to.... POS JB weld failed numerous times..haha!!\


all IMO so no offense.... and through my experience...

 

my vss broke on my motor and i tried to just fix it with jb weld. and it broke to ****. i used an epoxy and that held together better. maybe it was my mixing that f'd it up, but if i were you i would keep my eyes peeled for a better solution.

 

I do not have any exp. using JB Weld, but I personally would fix it the right way, and have it welded, or weld it myself.

 

make your own key way 180 degrees out. then mark it on the pulley 180 out

 

to me the problem with jb weld isnt the actual jb weld breaking, but it not sticking to the part good enough, it usally falls off after a while for me.

 

So how is everyone mixing the JB weld? Like I said before, the techs including myself at the shop I work at all use JB weld to do crank repairs at the key way. Not once, and I mean not once have we had a problem with the JB weld not holding properly. I'm just stating from my experiences, not saying that others experiences did not happen. My personal opinion is JB weld is quick and fast, just need to mix it properly.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by oneslowls &raquo;</TD></TR><TR><TD CLASS="quote">So how is everyone mixing the JB weld? Like I said before, the techs including myself at the shop I work at all use JB weld to do crank repairs at the key way. Not once, and I mean not once have we had a problem with the JB weld not holding properly. I'm just stating from my experiences, not saying that others experiences did not happen. My personal opinion is JB weld is quick and fast, just need to mix it properly.</TD></TR></TABLE>

50/50 mix


zer0

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 90blackcrx &raquo;</TD></TR><TR><TD CLASS="quote">This product
http://www.coolchem.com and jb weld will get the job done.</TD></TR></TABLE>

Coolchem is the ****

I got their test kit to try it out and it worked as advertized.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jasper_db1 &raquo;</TD></TR><TR><TD CLASS="quote">

Coolchem is the ****

I got their test kit to try it out and it worked as advertized.</TD></TR></TABLE>

, if more people would buy it and spread the word. I believe this product would be on everyones shelf.

 

is this a "will jb weld work?"
its holding my block together fine.

 

its been a few days and a whole tank of gas.... JB Weld on the Crank and BLUE Loctite on the crank pulley bolt... it hasnt moved an inch so far

 

I have used jbweld for many applications I would have said would never work. It not only worked but in every case never failed. One was crankshaft and another bottom hole in oil pan. I drained oil from vehicle - cleaned area with carb/brake cleaner after oil drained completely, patched with jbweld, and the pan never leaked. This is with oil exposure and heat on and off for years. Other applications filled key ways - let fully cure (this very important) and with proper assembly and centering gear/pulley to eliminate any non-normal vibration and it never broke not even budged.
I do admit every time I would look at the vehicle later I was always amazed it still worked.