[tcb] tank venting

  • From: ATX BUS <atx_bus@xxxxxxxxx>
  • To: tcb@xxxxxxxxxxxxx
  • Date: Fri, 2 Mar 2007 16:03:17 -0800 (PST)

Thanks for the input.  I have checked the tank and it is still in good shape,  
I have been warned about implosion so I open the tank regularly.  But of course 
this is not the solution.  When I was purchasing parts earlier today I was told 
that the cap for my 67 bus didn't come stock as a venting cap.  So I starting 
looking for a vent somewhere. No vent I can find.  I have an early 67 so I 
don't think the previously mentioned stock vents apply.



----- Original Message ----
From: sammie smith <bugcollections@xxxxxxxxxxxxx>
To: tcb@xxxxxxxxxxxxx
Sent: Friday, March 2, 2007 5:42:22 PM
Subject: [tcb] gas tank venting


Early busses and early bugs vent through the cap, or at least they are supposed 
to.  Later bugs, post hump back tanks and through 67, have a vest hole with a 
hose running down and out of the trunk.  Guess VW got tired of hearing all the 
ladies complain about gas fumes in the car since the tank was literally vented 
into the trunk.  Well here is an interesting story:  Had a friend in 66 who had 
a brand new bug; knew nothing about bugs; kept running out of gas and when he 
refilled it would only hold about 5 gallons; takes it back to the dealer and 
they remove the liner in the trunk to look at the fuel tank.  Totally 
collapsed.  The vent hose was kinked and the fuel pump was strong enough to not 
only keep pumping fuel in a vaccum but strong enough to collapse the fuel tank 
to 1/2 capacity.  And I don't wanna here from the barndoor and bay window guys 
about how they vent.  Read my prior disclaimer:  Any tech notes I give on 
busses apply only to post barndoor and pre bay window
 busses.  I gotta nuff to keep up with without hassling rich barn door guys and 
phat chicks.
Sammie


Hi Jeff,

shirley hall here, a lurker of the tcb list.  i read
your post on the venting problem and it rang very
familiar to my problem a few years back.  my tank was 
old and i had it relined when I got my 65 back on the
roak. my friend lost my original cap at gas station. i
bought another cap.  I didn't think twice. about a
month later ran out of gas about 40 miles early (not a
working guage).  reached over the motor to find the
tank "imploded" about 2-3 gallons worth. on advice of
friends, took compressor and blew it back up.  on the
way to en early TTatP, stopped just before park to
fill up the tank.  gas is pouring out of bus.  When I
had blown the tank back up, it had cracked the walls
of the tank.  I would check your tank to see if it
hasn't imploded.  I just took the gasket out of the
cap and it stays loose so it doesn't ruin another
tank.  i looked (not very hard I guess) for a vented
cap and didn't find one.  hope you can!

hope to see you in nac

Shirley Hall


 
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