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Pistons and Rods
#5
.025 ring gas are not ideal but many old books give that sort of figure as a refit limit. I suspect the coarse finished rings soon develop such gaps anyway.
It seems a waste to not utilise the good block. In the 1960s and 70s there were many knurling, peining etc process to expand pistons. Often a disaster if cracks started, esp on split skirts  but many successful. Do any vintge specialiats still do?
The black varnish is characteristic of 1930s style non detergent oils.
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Messages In This Thread
Pistons and Rods - by Pete H - 15-02-2018, 12:36 PM
RE: Pistons and Rods - by Stuart Giles - 15-02-2018, 12:53 PM
RE: Pistons and Rods - by Pete H - 15-02-2018, 01:27 PM
RE: Pistons and Rods - by Zetomagneto - 15-02-2018, 11:08 PM
RE: Pistons and Rods - by Bob Culver - 16-02-2018, 09:31 AM
RE: Pistons and Rods - by Roland Alcock - 16-02-2018, 10:32 PM
RE: Pistons and Rods - by Douglas Alderson - 16-02-2018, 10:57 PM
RE: Pistons and Rods - by Stuart Giles - 17-02-2018, 01:24 PM
RE: Pistons and Rods - by Pete H - 19-02-2018, 11:15 PM
RE: Pistons and Rods - by Zetomagneto - 20-02-2018, 12:11 AM
RE: Pistons and Rods - by Jeff Taylor - 20-02-2018, 12:18 PM
RE: Pistons and Rods - by ppearson - 25-02-2018, 04:30 PM
RE: Pistons and Rods - by Pete H - 26-02-2018, 01:25 PM

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