L20 Vacuum

General & Technical discussion about other Nissan/Datsun cars
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marioburke
Posts: 19
Joined: 20 Nov 2008 15:32

L20 Vacuum

Post by marioburke » 05 Jun 2009 23:43

I am reading through the 73-84 Repair manual. I ran across this vacuum diagram in the Emission Control 4-29/30.


Here is a close up of the diagram:
<img src="http://i7.photobucket.com/albums/y287/m ... G_4511.jpg">

Right below the arrow pointing to the spark delay valve it says for automatic transmissions but I find this part on both L20's with manual transmissions and it is missing on the one L20 with the automatic. Does anyone know why this would be? Would this part have any effect on throttle response?

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