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Zephyr Piston
What ever happend to the zephyr piston conversion??
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I am not sure that Theoben are doing these anymore, but I bought two for two HW80s that I owned back in the 90s. They wouldnt do them for the '77/97 at that time.
Consistency certainly improved with their use. Unsure about the claim of reduced piston bounce though?
Dave
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conversion
Hi,wasnt this a converson/tune done only by the Airgun Centre in Rayleigh,tho maybe wrong???.
ATB
Steve
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Yes they did,they had rave reviews at the time but seemed to die out very fast
maybe not as good in practise.
Rich
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The first zephyr was cut into the piston seal face, then they (theoben)started cutting then into the end of the cylinder to guide air to the transfer port.
Its just a ducting pattern to move the air in the direction of the port.
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