Engine Gages

[dsherburn]

Do the oil temperature and pressure gages on my 1946 BC12D need to be PMA/TSO? How about airspeed and altimeter?

[Guest]

Re: Engine Gages

yes, those also

[astjp2]

Re: Engine Gages

Some of the modern electronic stuff is PMA'd but not TSO'd, it may be OEM for a cirrus but not TSO'd for installation for other aircraft. Most will not question a scott oil temp gauge or oil pressure gauges. You can get them both ways. Contact your IA if you have more questions. Tim

[dsherburn]

Re: Engine Gages

Thanks Tim..my IA is helping me re-cover the plane right now, so the instrument work is pretty far off. I just purchased a new sheet metal panel from Wenglarz and the old instruments look pretty ratty.....

[stearman3]

Re: Engine Gages

yes, those also

Since these are 'Part 4a' airplanes,I would really like to see a regulatory reference for the TSO/PMA requirements for our instruments. Not couting the TSO requirement under part 91 for Altimeter/xpondr use, i don't think those requirements exist. I get stuff wrong all the time...Someone help me out on this one..................please...........

[astjp2]

Re: Engine Gages

I used to use Kansas instruments to overhaul my airspeed, altimeter and tach, the others are cheap enough to buy new, "Scott oil temp and pressure."
For a gas gauge, get the J3 one from Univair, the cork one from Wag kept sinking. I never had a problem with a univair.

Thanks Tim..my IA is helping me re-cover the plane right now, so the instrument work is pretty far off. I just purchased a new sheet metal panel from Wenglarz and the old instruments look pretty ratty.....

[NY86]

Re: Engine Gages

The original gauges were not TSO'd. They are approved because Taylorcraft "said so". Replacement gauges also do not need to be TSO'd, however, the installer needs a way to determine they are suitable replacements. A PMA or TSO is one easy way out.