Re: [T3] injectors

["Jim Adney" <jadney@vwtype3.org>]

On 26 Jun 2007 at 22:11, matthewNstanfield wrote:

> so i finally got to try and start my 1970 fastback tonight.
> 
> i would turn over, but not start.
> 
> i discovered that there is fuel on the cooling tins around all the  
> injectors. any ideas as to what would be causing this?

You have to watch while someone else cranks the starter. Remove the 
points wire from the coil while you do this, to reduce the chance of 
a fire.

The problem could be old, cracked fuel hoses, which you should 
replace with ordinary 5/16" fuel hose (don't spring for the expensive 
"fuel injection" hose, it's for modern cars with high pressure fuel 
injection.) Or the leaks could be right out of the injectors.

The injectors have a short length of fuel hose crimped onto them. You 
can CAREFULLY cut the crimp ferrule off and replace this hose. It's 
not necessary to replace the injector just because of this.

If the leak seems to be coming right out of a seam on the injector, 
then:

If left for a long time, the O-rings seals in the injectors will dry 
out and will leak. Sometimes they continue to leak and have to be 
replaced, but I suggest that you just go out to the car twice a day 
for a week and crank the engine over for about 10 seconds. Remove the 
points wire from the coil for this week, to reduce the chance of 
catching fire.

Keeping the O-rings wet with gas for a week is very likely to swell 
them back up and cause them to seal again. Then you can reconnect the 
points wire and try to start the engine.

Be very careful with the leaky injectors or hoses; a LOT of these 
cars died due to engine fires.

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

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