The key to getting it to stick properly is to get the metal surface REALLY 
CLEAN.
  ----- Original Message ----- 
  From: [email protected] 
  To: [email protected] ; [email protected] 
  Sent: Wednesday, May 13, 2009 6:20 PM
  Subject: Re: use jb weld to repair camshaft or just replace it?


  Not to long ago, I had a verizon bucket truck in the shop that had a nasty 
oil leak out of the bottom of the generator.  They had told us that they 
installed numerous main seals and it still leaks.  We removed the genset from 
the truck and disassembled it.  We found that the crank had a couple of deep 
vertical gouges in it.  Verizon declined the repair and instead sent us a new 
genset to install.  Since the old unit is now ours, I carefully jb welded over 
the gouges and sanded them smooth with a scotch brite pad.  We put the thing 
back together and ran it for a few days and it didn't leak a bit.  

  I wasn't sure if the repair would hold since the seal rubs directly over the 
jb weld but we use it on our service truck and it doesn't leak yet.


  In a message dated 5/13/2009 8:09:49 P.M. Eastern Daylight Time, 
[email protected] writes:
    I am working on a friends car. It is a '97 that they only had for 1 week. 
They brought the car to me with a horrible oil leak (engine was 3 quarts low on 
oil) and a 110K mile engine without any history. I put a new timing belt, water 
pump and seals in the car and then scrapped/washed all the old oil up. After 
putting the car back together I find that the intake camshaft has a bad gouge 
in it (well, more like someone took a dremel or something and cut a flat spot 
in it). Of course I didn't see this when I had everything apart! <G>. Anyway, I 
was fixing to order a used camshaft and started thinking that maybe I could try 
to repair it with some JB Weld and then sand it smooth. My thoughts are that it 
won't hurt to at least try to fill in the hole AND the camshaft is already worn 
with the lifters where another camshaft might not. What do you guys think? Do 
you normally replace the lifters as well? I am pretty sure the owner does not 
want to get too much invested in the repair (i.e. new camshaft and new 
lifters). 

    -- 
    Robert McElwee and Blue Flash
    "The 50 MPG Miata"
    www.lightweightmiata.com/blue



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