[Vwdiesel] Injection Pump testing ---( the fuel flow test )

[Svend M Kjong]

Why do we do this test ?   --- we do this test to verify internal IP pressure  ---and it
is simpler than hooking up a pressure gauge. (yes I use a gauge as well) ---so I know what
I am talking about. (not hearsay).

If the pressure does not work and vary according to BOSCH   specs ---your Rabbit will NOT
perform like Bunny Bondo.---or a brand new Rabbit.

At  2000 Rpm  pressure should be  75.4 PSI.  --- (minimum 66.7 ) if less  the injection
point will not be correct.

The timing piston return-spring looks linear to me ---and the Fuel regulator valve coil
spring looks linear to me. ---(I have them right here by the Keyboard.) .      Springs do
break at times  or get tired. Simple to inspect springs. . Fuel regulator valve unscrews
like a spark-plug. --It is located on top of IP   it has two flats .
Be careful  Valve housing  "barrel"  is soft steel.   do not use Pipe wrenches or
Vicegrips. RH thread.

Warning  :    around the IP  cleanliness is GODLINESS.

Svend.

PS :  Pressures may vary a lot and still be ok.  --ALL  my regulator Valves are  #  37.  I
am in the process of taking a VE 6 pump apart.

The SAGO mine was one BLACK  day in my life.