5KTQ gas cap question

[Don Muirhead]

On Mon, 13 Nov 2000 12:08:23 -0500 Huw Powell one at humanspeakers.com wrote:

if it is pressurised air *escaping* there is something wrong.  If it is
air *rushing in* due to a vacuum it is working right, congratulations I
haven't seen one do this for a long time...

the gas cap and tank are supposed to be sealed and the engine draws a
small vacuum on them to make sure the VOC's are burned, not released
into the atmosphere.  culprits if it is wrong... charc. canister, CC
freq valve, lines to them, etc...

--
Huw Powell
-----------------------------------
Huw's correct.

A recently acquired 5kcdtq did this and the cap would almost shoot out of 
your hand especially when the tank got low.  When I rebuilt the fuel system 
it went away.  This car had an after-market fuel pump that wasn't installed 
correctly and the check valve wasn't working, the filter had never been 
changed and the accumulator was shot.

In the old days (last week), I would have suggested that if the engine's 
starts and runs ok and don't want to spend the $$$ right away then you 
could make a vented filler cap.  However, given the recent environmental 
posts I wouldn't dare...so strike the part after "then" and insert "don't 
worry about it."

Don, trying to be green.

Btw - Huw where you been hiding and congrat's on your acquisition.