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Old 02-17-2018, 06:05 PM
DHeal DHeal is offline
Join Date: Sep 2006
Location: Windsor, California
Posts: 737

Data point: I installed the pitot bushing in 5/2013 using "blue Loctite" per Van's plans. Four years and 600 flight hours later the bushing is doing very well with no sign of loosening.
David Heal - Windsor, CA (near Santa Rosa)
EAA #23982 - EAA Technical Counselor and Flight Advisor; CFI - A&I
RV-12 E-LSA #120496 (SV w/ AP and ADS-B) - N124DH flying since March 2014 - 700+ hours (as of Nov 2018)!
VAF donation through June 2019.

Last edited by DHeal : 02-17-2018 at 06:39 PM.
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Old 02-17-2018, 08:42 PM
rvbuilder2002 rvbuilder2002 is offline
Join Date: Jul 2005
Location: Hubbard Oregon
Posts: 7,873

The loctite was originally specified because it was something that was needed during the engine installation, and it would be needed for maintaining the engine in the future.

It works well if the fit of the busing is the desired level of clearance with the hole diam. that is specified, but apparently that can vary more than desired and some people have had them come loose, so the new plans for the iS airplane will be specifying using tank sealant.

It is fairly viscous so does a good job of gap filling if needed, and because it is flexible it will assure that differences in expansion/contraction will not be a factor (if there is a chance that that also was, but that is unknown).
Any opinions expressed in this message are my own and not necessarily those of my employer.

Scott McDaniels
Hubbard, Oregon
RV-6A (aka "Junkyard Special ")
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Old 02-18-2018, 12:45 AM
Vakashi Vakashi is offline
Join Date: Feb 2018
Location: Auckland, New Zealand
Posts: 5

Thanks Scott, you always do a great job of clarifying the thinking behind so many aspects of the build that have us builders perplexed.
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