Friday, November 29, 2013

While installing my new Weber 32/36 carburetor on my 1975 Datsun 620 I encountered various problems once the Weber was fully bolted down. One of my problems being the vacuum system. I have a charcoal canister that is completely unknown to me and has four hoses coming out of it. My questions were "what is this?" and "what does it do?".

Here is a picture of the canister:
de smog, charcoal canister
Figure 1: Charcoal Canister
The colors are (Figure 1), from left to right, or the passenger's side moving to the driver's side are: white, blue, green, and yellow (yes, yellow, although it is a faint yellow). 
The white color is labeled CARB
The blue color is labeled FUEL TANK
The green color is labeled PURGE
The yellow color is labeled DIST VC

The CARB vacuum line need to be cancelled.
The FUEL TANK vacuum line is connected to the line on the driver side of the vehicle that "breaths back" in to the fuel tank.
The PURGE vacuum line is connected to the intake manifold's "small nipple".
The DIST VC vacuum line is connected to the Weber's vacuum line.

The following picture are of my system:
Figure 2: Small nipple on intake manifold
Figure 2 shows the "small nipple" on the intake manifold, by the disconnected vacuum line. This is where the PURGE vacuum line is connected to.
Figure 3: Weber 32/36 vacuum line
Figure 3 shows the one and only vacuum tube coming out of my Weber 32/36 electronic choke carburetor. This line is where the DIST VC vacuum line from the canister connects to.


Furthermore, these are some webpages that show how to tune the Weber 32/36 Carburetor



1 comment:

  1. Looks like you need some parts! Some manufacturers may specify specific parts so sometimes, using a manufacturer's parts on another's truck doesn't work. In case this happens, check out if you can find that part near you, or look at the internet for options. More options means you can get the best deal for each part!
    Shaun Stille @ GPartsInc.com

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