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Fuel / Vacuum pump question

Discussion in 'Early CJ5 and CJ6 Tech' started by timjuhl, Jun 27, 2012.

  1. timjuhl

    timjuhl New Member

    Ok.... time to ask for help. I'm going to replace my mechanical fuel pump with a dual action AC 9526 so I'll have more reliable vacuum to operate my wipers. I also plan to reinstall the PCV valve which disappeared sometime during prior ownership.

    I've seen some pix of pump installations here and there but I still have some confusion. Since my pump came with no instructions, I'm turning to you.

    First, before you ask, I do have the 1/8th inch spacer for it.

    Let me know if I have this right - looking at the attached pix, my understanding is the top section is fuel and the bottom is vacuum. Port A on the top is connected to the carb while port B is connected to the fuel line from the fuel tank.

    On the bottom, port 1 (labeled IN) is vacuum and is connected to the wipers. Port 2 is pressure (out) and is connected to a fitting on the manifold below the carb. along the way it is Tee'd off to the PCV valve which in turn is plumbed into the side valve cover.

    How am I doing?

    Tim

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    Last edited: Jun 28, 2012