[T3] Question on fuel leak today .

Jim Adney jadney at vwtype3.org
Sat Jul 14 05:03:57 PDT 2018


On 13 Jul 2018 at 12:44, William Jahn wrote:

> Turns out it was a 5/16" 2" long bolt I used to plug the fuel line from
> the line that fed the cold start valve . I long ago cut that line and
> left enough to fit the fuel pressure gauge it's about 1 foot long . I
> have 2 clamps on that line to clamp the bolt/plug FI clamps and found
> the plug on the ground . I did this because I thought perhaps the cold
> start valve might leak ,it didn't . I also use that hose with the plug
> to connect the fuel pressure gauge rather than the port on the left
> rail . 

The best way to disable the cold start valve is to simply disconnect the 
electrical plug. I don't recall ever seeing a CSV leaking, but I suppose it 
might happen. I don't know of a better way to plug an unused hose, but 
leaving the end of the hose free to vibrate around probably made the bolt 
more likely to be shaken loose. If you really want to continue doing this, you 
should find a way to stabilize the end of the hose.

You're lucky this happened in the parking lot where it was easy to find the 
bolt.  

I've never found periodical checking of the fuel pressure to be necessary or 
useful. Keith is the only one I've ever heard of who has had problems with 
his pressure regulator; mine have all been "set and forget" adjustments.

For Keith, I wonder if an occasional dose of Seafoam gas additive would be 
useful. It will clean accumulated gum out of the fuel system. I don't know if 
that's been his problem, but maybe so. $10 will buy 2 doses. It's worth a try.

-- 
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Jim Adney, jadney at vwtype3.org
Madison, Wisconsin, USA
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