1.9 TD pump?

[catmanaz]

Hello, new AAZ owner her.
I am curious about my rebuilt 1.9 TD pump.  It appears to be missing the manifold pressure line on the top of the pump.  It is obvious someone has made a piece to cover the top.  Is this a common mod?  If not how would this affect the pump performance.  Would the same part off a 1.6 pump work?  Thanks for any help.  Hope that makes sense,  still figuring out what everything is called.



James

[madmatt]

if there is no pressure input thr lda will be inoperable so no extra fuel under boost.also looking at the picture i see no secondary water pump that was put on all td t3/vanagons.

[commuter boy]

A lot of them came from the factory that way, called "umwelts".  If you take the cover off and look inside you'll just see a hollow chamber sealed off from the rest of the pump if it's one of those.