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FI fuel damper/muffler/mystery box


Some time ago I asked if anyone had come across one of the little 
cylindrical metal boxes that are found in-line just in front of the 
T3 FI fuel pumps--a dead one, that is.  Well Keith Park found one 
that had rusted through and agreed to send it to me for dissection.
It arrived today.

You may recall that it has a crimped seam around its "waist" so I 
planned to just grind off the rolled over metal and let the parts 
fall apart.  The first thing I noticed about Keith's unit was that he 
had sandblasted it, thus revealing that the inlet and outlet nipples 
were brazed in place.  This was a surprise, but not as much as when I 
discovered that the two halves of the body were also brazed together.

I realized that as I tried to grind away the crimp and found that 
even with the rolled over metal gone the two halves were still stuck 
together firmly.  So I stuck it in a lathe and turned down the seam 
until it broke apart.

You know what's in there?  Absolutely NOTHING!  It was completely 
empty, no baffle, no coarse filter mesh, nada.  The only difference 
between the inside and the outside was that there was very little 
rust in the inside.

Next time I'm under there installing new hose, I will NOT be putting 
this part back in place.  It's a fair amount of work to get it in 
place just right, it takes extra hose and hose clamps, and it is 
something else which can leak.

So thanks for the part, Keith.  I'm afraid it caught in the tooling 
and got kind of bent up as it came open;  would you like it back? 

Jim
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       Melissa Kepner                                    Jim Adney
                             Laura Kepner-Adney
                         jadney@vwtype3.org      
                             Madison, Wisconsin
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