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Transfer vacuum piping, what does it do

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  • 31-08-2018 11:15am
    #1
    spaceHopper
    Registered Users Posts: 4,001 ✭✭✭


    I was away with the family at the weekend in the camper and took the opertunity to have a look under it, just to see if everything was OK and checking if I still has a spear key hidden in it.
    I noticed some tin pipes look a bit rusty, not to bad but I just want to know what they are. Doesn't look like breaks.

    Found it on a diagram on line its the "Transfer vacuum piping" but what on earth do they do. I'm sure I'll get an answer here. It's a toyota hiace jap import automatic if that helps

    http://jp-carparts.com/toyota/partlist.php?maker=toyota&type=711140&cartype=106&fig=3616


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    #2
    autumnalcore
    Registered Users Posts: 835 ✭✭✭autumnalcore


    spaceHopper wrote: »
    I was away with the family at the weekend in the camper and took the opertunity to have a look under it, just to see if everything was OK and checking if I still has a spear key hidden in it.
    I noticed some tin pipes look a bit rusty, not to bad but I just want to know what they are. Doesn't look like breaks.

    Found it on a diagram on line its the "Transfer vacuum piping" but what on earth do they do. I'm sure I'll get an answer here. It's a toyota hiace jap import automatic if that helps

    http://jp-carparts.com/toyota/partlist.php?maker=toyota&type=711140&cartype=106&fig=3616

    Vacuum can be used for lots of things, brake servo, egr, boost control, swirl flaps, idle air control valve, air conditioning actuators, gearbox actuators, etc. etc. Any loss of vacuum can affect all things but being an old toyota that rust is probably completely insignificant, more likely to have a perished hose fail than the steel.


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