8-105 - Strange slits cut into lower side skirts of Pistons????

  • curtiss
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25 Dec 2017 04:23 - 25 Dec 2017 04:27 #33937 by curtiss
curtiss created the topic: 8-105 - Strange slits cut into lower side skirts of Pistons????
We finally got to pulling the engine and taking it apart tonight in the 1933 8-105.

I found each of the pistons we labeled .060 over and they had a hole drilled in the skirt along with a "T" style slit in the sides of Pistons below the ring level. I have never seen this before, have you all seem this and what would the reason be for doing this?


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25 Dec 2017 05:13 #33939 by mikespeed35
mikespeed35 replied the topic: 8-105 - Strange slits cut into lower side skirts of Pistons????
Not strange, common for the era.
CORDiallyMike

Mike Huffman

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25 Dec 2017 11:11 #33940 by curtiss
curtiss replied the topic: 8-105 - Strange slits cut into lower side skirts of Pistons????
So is it acceptable to reuse these? What is the purpose, to get more oil in?

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25 Dec 2017 17:24 #33944 by RandyEma
RandyEma replied the topic: 8-105 - Strange slits cut into lower side skirts of Pistons????
Merry Christmas . The factory used them to allow for expansion so the skirt hot would not score to the cylinder wall. R

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25 Dec 2017 17:30 #33945 by curtiss
curtiss replied the topic: 8-105 - Strange slits cut into lower side skirts of Pistons????
Merry Christmas to you too! Thanks for the info.

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26 Dec 2017 03:32 #33948 by curtiss
curtiss replied the topic: 8-105 - Strange slits cut into lower side skirts of Pistons????
This is starting to make more sense now. As I look at an old set of pistons that came out of my old spare engine and could be original they have a lot of open space around the lower skirt.

Thanks for the feedback.

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