Re: [T3] new member

["Russ Wolfe" <russella@prairieinet.net>]

>    My name is Heather, I am a proud new owner of a '71
> AT, FI Fastback.  I have been having problems with the
> fuel injection. I suspect the injectors might be
> clogged or ruined. It tends to die at idle speed and
> when taking off or accelerating. I have concidered
> buying dual weber 34 ict carburators. The engine was
> supposedly rebuilt "26,000" mi ago, the odo reads:
> 89,519.  I am worried about some parts that may be
> worn, and need to be replaced.  Does anyone have any
> tips about checking certain parts?  Should I get my
> trans. tuned up/serviced (tightening bands, changing
> oil, etc)?

Suspect the fuel injection as the last thing.
9 times out of 10, something is wrong in the tune up or charging system.
A multimeter/voltohm meter is your friend. Check the resistance of the plug
wires.
They should be genuine Bosch.
The resistance of each wire should be 1000-2000 ohms. If they are genuine
Bosch, the ends are the part that goes bad, and they can be purchased
seperately.
The resistance of the rotor should be approx. 3000-5000 ohms.
The gap on the points should the .016" or 50 degrees dwell.
Check the vacuum advance, and the breaker point plate movement.
Check the timing. It should be set exactly right.
Check the charging system. It should be 13.6-14.2 with the engine running at
a fast idle. The voltage regulator should be genuine Bosch.
Check the fuel pressure. It should be 28-32 psi.
Check the throttle switch position. With the key on, you should hear an
injector click, just as the throttle starts to move.
Get a Bentley manual, and it will walk you through all the test.
If you have any questions, come back here to the Type 3 list. There is
hundreds of years of accumulated experience here. You will not find a
problem that hasn't been experienced by by someone on "The List", and has
not been cured.

Russ Wolfe
http://www.classicvw.org


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