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Water pumps on chain driven engines?

  • 10-05-2017 10:49pm
    #1
    Atlantic Dawn
    Registered Users, Registered Users 2 Posts: 84,762 ✭✭✭✭
    M


    I know nothing lasts forever but on chain driven engines you pretty much touch wood rarely need to change them so for this reason the water pumps are rarely changed unless they fail, is it something that should be done at a certain interval or should you just wait until it fails to replace?


Comments

  • #2
    porsche boy
    Registered Users, Registered Users 2 Posts: 1,560 ✭✭✭porsche boy


    What car is it? Not all cars run water pump off the timing.


  • #3
    joujoujou
    Registered Users, Registered Users 2 Posts: 13,982 ✭✭✭✭joujoujou
    Unregistered Users


    Atlantic Dawn wrote: »
    [...] just wait until it fails to replace?

    ^^ This. ^^

    If it ain't broke, don't fix it. :)


  • #4
    blackbox
    Registered Users, Registered Users 2 Posts: 4,713 ✭✭✭blackbox


    The reason for changing them when they are driven by the timing belt is that if they fail they can cause the belt to break resulting in engine damage.

    When they are driven by the auxiliary belt there is little risk of consequential damage as long as you don't let the engine overheat.

    .


  • #5
    JohnBoy26
    Registered Users, Registered Users 2 Posts: 8,532 ✭✭✭JohnBoy26


    blackbox wrote: »
    The reason for changing them when they are driven by the timing belt is that if they fail they can cause the belt to break resulting in engine damage.

    When they are driven by the auxiliary belt there is little risk of consequential damage as long as you don't let the engine overheat.

    .
    Labour costs are another reason.


  • #6
    rex-x
    Registered Users, Registered Users 2 Posts: 1,893 ✭✭✭rex-x


    It's no harm to change pumps not driven by the timing belt at some sort of schedule as they are cheap enough and when they fail they often will leave you stranded which is more of a pain than changing one. In my experience anyway


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  • #7
    JohnBoy26
    Registered Users, Registered Users 2 Posts: 8,532 ✭✭✭JohnBoy26


    Atlantic Dawn wrote: »
    I know nothing lasts forever but on chain driven engines you pretty much touch wood rarely need to change them so for this reason the water pumps are rarely changed unless they fail, is it something that should be done at a certain interval or should you just wait until it fails to replace?

    As another poster mentioned not all cars drive the waterpump off the belt/chain. Waterpumps are known to fail in the mk2 yaris yet they have a cam chain. It's external to the cam chain though and isn't driven off it.


  • #8
    Muckie
    Registered Users, Registered Users 2 Posts: 1,763 ✭✭✭Muckie


    Water pump failed on the wifes Yaris, lucky enough its not a big job to replace.

    If you are handy with a few tools,it myself, took about 45 minutes, cost about €60.

    So happy out.


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