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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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    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.
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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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    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
    Porsche 924 1979
    Alfa Romeo 33 1.4IE 1993

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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
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    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
    Porsche 924 1979
    Alfa Romeo 33 1.4IE 1993

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