Kevin;
A thin coating of the brush-on sealer should
is fine. Just hand tighten the adapter onto the sender, then thread in and
use a wrench on the sender. Whatever torque is on the sender is also on
the adapter, so that will tighten both.
Al
-----Original Message-----
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of kevin lane
Sent: Sunday, January 24, 2010
9:43 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] sender units
my temp senders [water and
oil] are 1/8" npt and come with brass adapters for fitting them to 1/4 ,
3/8, and 1/2" npt holes. they have no where to put a wrench on them,
just threads 100% on both the inside and out. I brushed some Teflon
sealer on them. the only way to tighten the outer threaded bushing is by
wrenching the inner sender. I hope this will work but was curious
as to what others did. putting a wrench or pliers to the adapter will
damage the outer threads, yet I assume these must work or VDO wouldn't use
them, right?
ps - I drilled and tapped
my water pump housing to 1/4"npt.