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Thread: Toyota 12H-T vs 3F Engine

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    Default Toyota 12H-T vs 3F Engine

    Dear Experts,

    I need your opinion regarding the two engines in question for a Land Cruiser 1988 as i am looking for one and have both the options. Although, as per my information diesel engine travels more in a liter of fuel than a petrol engine but unless theres a huge difference, lets not talk about that. As the price of petrol and diesel are similar these days so economy is out of the equation.

    I do not have any experience with 4x4s and all i have is information that i could gather from Google and Wikipedia. So, all you there who have any experience regarding these engines please share with me.

    3F Engine (Petrol)
    As per Wikipedia they are known for their high amount of torque at low RPM and also their high reliability. Due to slow-revving design of these engines, it is not uncommon to see them reach over 300,000 miles before needing a major overhaul. Output 155 hp

    12H-T Engine (Diesel)
    As per Wikipedia this is a turbocharged Diesel engine with an output of 134 hp at 3500 rpm.

    All suggestions or advices or experiences are most welcome. Thank you!

    Regards,
    CYRUS

    Aint no mountain high enough... Aint no valley too low!!!

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    Quote Originally Posted by gujar96 View Post
    bro what do you say about 1HD-T on a TLC 70
    It will definitely be a nice swap.... 1HD-T In 70 Series.... coz 70 series already comes with 1HZ, 1HD-T shud not be any problem...
    https://www.facebook.com/CAR.Fest.Pak

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    Quote Originally Posted by qwertypoiu View Post
    Nice engine, thats the best one can have.. it depends on differential I guess with 4.8 ratio you can get top speed of 150 and mileage will be anything from 6 to 9.... factors of engine, pump and turbo condition and way one drives.....
    What about the 2L-T? I know it' a much smaller engine and there is no coparison with 1KZ-TE. I have heard horror stories about the head cracking and all.
    Death is not the greatest loss in life. The greatest loss is what dies inside us while we live.

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    Default

    Quote Originally Posted by Proverbial_Slang View Post
    What about the 2L-T? I know it' a much smaller engine and there is no coparison with 1KZ-TE. I have heard horror stories about the head cracking and all.
    Its true what you have heard
    RIP

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    2F engines and 2jz engine comparisson are requested for installing in FJ 40 with prime objective of plying on metal roads, thanks

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    Quote Originally Posted by Banoori555 View Post
    2F engines and 2jz engine comparisson are requested for installing in FJ 40 with prime objective of plying on metal roads, thanks
    Not my personal experience but from what I have learned, 2F for low end torque and offroading and 2JZ for on road fun.
    Death is not the greatest loss in life. The greatest loss is what dies inside us while we live.

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    2jz is a very sweeeet engine
    To all the extreme drivers, please come offroad like ME to keep others safe on the roads.

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    Try to stay Diesel
    You will love it .
    Fuel average of 3F is not very good unless you go for brand new carby in it .



    Sent from my iPhone using PW Forums
    Old is Gold
    Sulfide by Nature ....Trained & Tuned @ Toyota,,,,,,

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    The difference between these big Toyota Petrol and Diesel engines is just like the different between your Girl Friend and wife...

    Like a girl friend Petrol(2F, 3F, UZs....) are light quiet and perform very well, heavy on your pocket in terms of daily running and at the same time temperamental You never know one morning they start giving you trouble...

    Like a wife Diesels(2Bs, 3Bs, 2Hs, 12HTs....) are heavy lumpy very noisy, low on hp high on torque, very reliable, return better KMs per liter,do not require a lot of maintenance, and if you keep the battery charged they always crank up...

    So make a choice now..
    -

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    Quote Originally Posted by hsumbal1 View Post
    The difference between these big Toyota Petrol and Diesel engines is just like the different between your Girl Friend and wife...

    Like a girl friend Petrol(2F, 3F, UZs....) are light quiet and perform very well, heavy on your pocket in terms of daily running and at the same time temperamental You never know one morning they start giving you trouble...

    Like a wife Diesels(2Bs, 3Bs, 2Hs, 12HTs....) are heavy lumpy very noisy, low on hp high on torque, very reliable, return better KMs per liter,do not require a lot of maintenance, and if you keep the battery charged they always crank up...

    So make a choice now..
    Amazing analysis, 100% true hahahaha.

    As a friend very rightly said, "Pakistani bivi aor EFI engine kay masalay kabhi khatam nahin hotay".

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    Agree with Hameed 100%

    Diesel motors are the best .


    Sent from my iPhone using PW Forums
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    Quote Originally Posted by joinami View Post
    Agree with Hameed 100%

    Diesel motors are the best .


    Sent from my iPhone using PW Forums
    The only problem is regular upkeep and maintenance. I haven't come across a mechanic yet who can tune a diesel correctly. Motors like 2F on the other hand are a piece of cake and a person like me can easily tune it and even adjust tappets etc.
    Death is not the greatest loss in life. The greatest loss is what dies inside us while we live.

  13. #32
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    Default 2F valve lash

    Quote Originally Posted by Proverbial_Slang View Post
    The only problem is regular upkeep and maintenance. I haven't come across a mechanic yet who can tune a diesel correctly. Motors like 2F on the other hand are a piece of cake and a person like me can easily tune it and even adjust tappets etc.
    Whats the valve lash you set on your 2f bro?
    Flat six flattening things out!

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    You will get better milage and a lot lot better speed with 2jz-ge (vvti) than 2f or 3f carby.
    To all the extreme drivers, please come offroad like ME to keep others safe on the roads.

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    If you want to keep large engine then go for 1 fz-fe
    To all the extreme drivers, please come offroad like ME to keep others safe on the roads.

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    1FZ is a good motor .
    I agree with sir shahid .


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    Default

    Quote Originally Posted by HamzahF View Post
    Whats the valve lash you set on your 2f bro?
    I have never owned a vehicle with a 2F bro. However, I have extensive experience with Corollas and Charade CB60. I know for a fact that 2F is a much older engine and there should not be any rocket science in tuning it.

    As for the carburettor, Installing a new one or maybe rebuilding the old one as per factory specs should not be too much of a pain. On the other hand, I know a mechanic who used to tune our 74, 78 Corollas properly and then used to check the mileage with a bottle attached and everything.

    Diesels are still a mystery to me despite having owned a 2C powered Townace. The visits to the diesel labs and hit and run pump settings are a real pain in the behind!
    Death is not the greatest loss in life. The greatest loss is what dies inside us while we live.

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