<VV> Used 12 plate oil cooler - not so cool

[Ron]

One bad 12 plate cooler doesn't indicate that all of them are bad.  In fact, 
I've used several and have never seen one like yours.  Pick another one out 
of the pile and chances are that it'll be fine.
RonH

----- Original Message ----- 
From: "Stephen Upham" <contactsmu at sbcglobal.net>
To: <virtualvairs at corvair.org>
Sent: Saturday, May 12, 2007 6:59 AM
Subject: <VV> Used 12 plate oil cooler - not so cool


> I just received my "new" used 12 plate oil cooler that had been 
> chemically treated and pressure checked by the vendor.  I shook it  and 
> heard the distinct sound of loose debris inside.  I collected the  debris 
> that fell out and ran a super magnet though it.  No good, as  the magnet 
> now looks like it could use a shave.  Conclusion, I  seriously doubt that 
> any used oil cooler can be sufficiently cleaned  to prevent this type of 
> occurrence and now, I'm almost certain that  this is the source of the 
> iron debris that showed up during my  pressure check that caused me to 
> have to completely tear down and  throughly clean the engine AGAIN.  I had 
> personally cleaned that one  by using the hot paint thinner method until 
> the thinner ran clear  (not a process for the faint of heart), having 
> engine cleaner ran  through it and blown out under pressure, using 
> pressurized water to  blow and reverse blow it out and then pressurized 
> air to blow out the  moisture.
> So... now I'm pretty sure that I need to go the after-market cooler  route 
> even though I would prefer the original.
> I noticed that the right coast vendor has one for sale, but I don't  know 
> what other options I have down this alley. I  know that I'll  have to 
> force air though it and so a plenum mount would be my first  choice 
> although I'm open to any suggestions that are located in the  engine 
> compartment.
>
> Stephen U
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