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Thread: 1231 (818.202) engine

  1. #11
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    Re: 1231 (818.202) engine

    Quote Originally Posted by Castagnero View Post
    Where can i find the number 302 on the 1231cc engine?

    It's confusing indeed!
    the 1231 is Type 818.202, not 302; 302 is a 1298
    Ed Levin
    Fulvia 1,6 HF

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    Legendary Lancista Marnix's Avatar
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    Re: 1231 (818.202) engine

    To confuse matters even more: the engine number is 202. On the cylinder block is stamped 302, as it is the same block for the 202 and 302, but the block bored at 75mm for the 202 engine, and 77mm for the 302 engine. The block is derived from the cast for a 302, hence that number on the cylinder block.
    Lancia Fulvia 2C 1964
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    Active Lancista Castagnero's Avatar
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    Re: 1231 (818.202) engine

    Okay so to summarize:
    Car type 818.130 from vin 019600 (1231cc) has stamped on:

    1. Flange : 818.202
    2. Crankcase: 818.302
    3. Cilinder block: 818.302
    4. Head: 818.100

    ?

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    Legendary Lancista Marnix's Avatar
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    Re: 1231 (818.202) engine

    Yep. According to parts book, this is right.

    The confusion comes from the evolution of the 1216 (818.130) to the 1231 (818.202) engine. The 1231 (202) is basically a 1298 (302) engine slimmed down in cylinder volume by boring the cylinders to 75mm instead of the 77mm of the 1300 engine. Due to the smaller 75mm cylinders and pistons, they fitted the 818.100 (1100cc) head of the 818.100 (and also 818.130), as the normal 302 head (which itself is originating from the 818.140 engine and marked 818.140 as such) may have been too large in cylinder diameter /hemisphere volume for the 75mm.

    This sounds completely right.

    It think your engine is as it should be, other unspecified parts not considering.

    Hence the markings:
    crankcase: same as the 302
    block: marked 302, same cat as for the 302, but bored out at 75mm instead of the 77mm
    head: 100
    engine type marking: 202
    Lancia Fulvia 2C 1964
    Lancia Fulvia Coupe Rallye 1,3 1968
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    Legendary Lancista Marnix's Avatar
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    Re: 1231 (818.202) engine

    read "cast" for "cat" in previuos message.
    Lancia Fulvia 2C 1964
    Lancia Fulvia Coupe Rallye 1,3 1968
    Porsche 924 1979
    Alfa Romeo 33 1.4IE 1993

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    Active Lancista Castagnero's Avatar
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    Re: 1231 (818.202) engine

    I only have to check the number on the block... The others are as they should be.


    Quote Originally Posted by Marnix View Post
    Yep. According to parts book, this is right.

    The confusion comes from the evolution of the 1216 (818.130) to the 1231 (818.202) engine. The 1231 (202) is basically a 1298 (302) engine slimmed down in cylinder volume by boring the cylinders to 75mm instead of the 77mm of the 1300 engine. Due to the smaller 75mm cylinders and pistons, they fitted the 818.100 (1100cc) head of the 818.100 (and also 818.130), as the normal 302 head (which itself is originating from the 818.140 engine and marked 818.140 as such) may have been too large in cylinder diameter /hemisphere volume for the 75mm.

    This sounds completely right.

    It think your engine is as it should be, other unspecified parts not considering.

    Hence the markings:
    crankcase: same as the 302
    block: marked 302, same cat as for the 302, but bored out at 75mm instead of the 77mm
    head: 100
    engine type marking: 202

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    Re: 1231 (818.202) engine

    Quote Originally Posted by Castagnero View Post
    Okay so to summarize:
    Car type 818.130 from vin 019600 (1231cc) has stamped on:

    1. Flange : 818.202
    2. Crankcase: 818.302
    3. Cilinder block: 818.302
    4. Head: 818.100

    ?
    As Marnix suggests, those numbers agree.
    Ed Levin
    Fulvia 1,6 HF

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    Re: 1231 (818.202) engine

    the block number is cast at the side, below the inlet manifold.
    Lancia Fulvia 2C 1964
    Lancia Fulvia Coupe Rallye 1,3 1968
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    Alfa Romeo 33 1.4IE 1993

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    Re: 1231 (818.202) engine

    Hi guys,

    I am new here and very new to the Fulvia. I am living in Bangkok, Thailand and just acquired a 818.131 with 818.202 engine. At first, I thought the car came with 1216cc engine. After reading this thread, I went and checked at my engine. It's 818.202 with 302 block as mentioned. I have attached photos of the head and block numbers as well.

    The suspension was sorted. I'm disassembling the engine for overhaul and learning about the car along the way. Is there anything I should be concerned or I have to take special care of when I work on the engine? The engine came with wrong head gasket too. It looks like a gasket for 77mm pistons. Two of the water passages (or oil?) between the pistons are blocked because they are not aligned with the gasket. Are these passages location unique to this engine?

    Click image for larger version. 

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  10. #20
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    Re: 1231 (818.202) engine

    I'm interested why the head gasket does not line up with two passages. Several passages off centre I know about and probably has something to do with regulating coolant flow. But I cannot recall two passages completely blocked. I have no used gasket to check though.

    Cheers,
    William

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