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  • Prado 03 compression values

    New member here,

    I am buying a used 03 Prado VX in Morocco to use, which is a tricky place to buy a used car... ie no service histories/ altered kilometres etc. I want to do an engine compression test, but cannot find the normal values to look for, either searching this site or the web. Does anyone know where i can find them. I think the engine will be a 1KZ-TE.

    Also any tips to how to check if the kilometre reading is true?

    Many thanks

  • #2
    Re: Prado 03 compression values

    Originally posted by marocdoc
    New member here,

    I am buying a used 03 Prado VX in Morocco to use, which is a tricky place to buy a used car... ie no service histories/ altered kilometres etc. I want to do an engine compression test, but cannot find the normal values to look for, either searching this site or the web. Does anyone know where i can find them. I think the engine will be a 1KZ-TE.

    Also any tips to how to check if the kilometre reading is true?

    Many thanks
    Hi Marocdoc, check out this site http://www.elphick-pooley.co.uk/pdf/...E_manual.pdfit is also an early 1kz-te engine, data cannot guarantee the info but it should be close the earlier engines that had a pretty high compression ratio of 21:1 from memory.
    If Mick L was around he could probably clarify.
    Hope this helps a little
    07 Upgrade GXL D4D, Manual, Dune,Sov Bar, BFG's, SG11, Redark dual Batts, Extensive Aux wiring, Stebel, LED stop tails, IPF HID's (my mod), 240V Inv, ARB Comp, GME UHF,TPMS, Safari snorkel, GPS,Hilux washers, 40l Engel in 30% pas pos,homemade A/C cond protection plate, polyairs.

    Comment


    • #3
      Re: Prado 03 compression values

      many thanks for that link.

      In the end the toyota mechanic here declined to do a formal compression test on each cylinder, but just hooked the vehicle up to some sort of computer which said "engine ok". I have no idea what this computer actually looked at. Any ideas? Is this as useful as a compression test?

      Thanks for the advice!

      Comment


      • #4
        Re: Prado 03 compression values

        Originally posted by marocdoc
        many thanks for that link.

        In the end the toyota mechanic here declined to do a formal compression test on each cylinder, but just hooked the vehicle up to some sort of computer which said "engine ok". I have no idea what this computer actually looked at. Any ideas? Is this as useful as a compression test?

        Thanks for the advice!
        Hi Marodoc,
        I would push for a wet and dry compression test Wet= add small amount of oil to each cylinder conduct compression test check result IAW maintenance manual, Dry= conduct compression test check result IAW maintenance manual, most dealers will only conduct a Dry compression test as this normally gives a general indication of piston ring/ cylinder bore wear. The Wet compression test addition of oil partially seals the piston ring to cylinder bore clearances and highlights any intake and exhaust valve seat leaks/ wear.
        Running an (OBD) on board diagnostics scanner over your engine ECU (computer) and finding no fault codes and saying your engine is OK seems to be the norm for a lot of dealers these days but unless your mechanic indicates what tests he conducted with the computer scanner and there are many, I would still conduct at least a dry compression test as it will give a good indication to the mechanic of the level of Piston to cylinder bore wear.
        There are many things to check on a second hand vehicle engine with no known history but hopefully your mechanic has inspected your engine and vehicle thoroughly.
        Hope this helps
        07 Upgrade GXL D4D, Manual, Dune,Sov Bar, BFG's, SG11, Redark dual Batts, Extensive Aux wiring, Stebel, LED stop tails, IPF HID's (my mod), 240V Inv, ARB Comp, GME UHF,TPMS, Safari snorkel, GPS,Hilux washers, 40l Engel in 30% pas pos,homemade A/C cond protection plate, polyairs.

        Comment

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