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Re: [T3] End of 1776 overheat saga and vapor lock Q. (long!)


On 18 Nov 2005 at 22:45, David Y wrote:

>   On 18 Nov 2005 at 11:01, Jim Adney wrote:

>     It's also possible that your gas tank has lost its vent for some 
>     reason. If this happens the tank could come under vacuum and vapor 
>     lock could result from trying to pull gas from the tank while the 
>     tank was trying to pull it back. As a test, next time you have this 
>     problem you could open your gas cap and see if you get an ingoing 
>     "whoosh", followed by easier starting.
> 
> Great tip. If this does turn out to be the case, where does the tank 
> vent so I can check for blockage? I believe our gas caps are 
> originally non-vented (as is the locking replacement I have on there 
> now)?

Just pull out the cardboard trunk lining and look for the hoses. They 
will be obvious. I think they may even be shown in the Bentley 
manual, but note that the tank and hose routing changed in mid '68. 
You should be able to pull out the end of the vent hose and blow into 
it, with the tank cap off, and tell that you're getting air to pass 
into the tank. It won't flow quickly, but that's okay. It doesn't 
have to.

-- 
*******************************
Jim Adney, jadney@vwtype3.org
Madison, Wisconsin, USA
*******************************

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