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Doug,
My recollection is that this oil pressure port is a wierd one called 1/8"
BSPT. ("British standard pipe thread", I think).
See:
That seems to be corroborated by this thread on Grassroots
Motorsports:
Maybe someone else can confirm. I bought an adapter and this is what I
recall.
Barry Gardner
Wheaton, IL
----- Original Message -----
Sent: Thursday, November 01, 2007 8:19
PM
Subject: [FlyRotary] Oil Pressure Sender
Placement
My 13B seems to have pulled oil pressure from a small port next to
the oil filter plate which supplies the oil to Tracy's PSRU. A VDO
pressure sender will fit into the hole but will not thread so I must assume
this was never tapped out for NPT and is still in metric. In looking at
a picture of the engine before I removed all the senders, it shows a small
brass fitting on the end of the pressure sender but I can't find that small
brass piece anywhere and was therefore wondering what the sock thread size so
as to get something to adapt to my VDO sending unit? Thanks for any
help.
Doug Lomheim
RV-9A, 13B, FWF
OK City, OK
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