O-320 dipstick O-ring

deej · #1 08-31-2011, 12:39 PM

Hi all,
I have a Lycoming O-320-E2D. Trying to find the part number for the o-ring that goes around the threaded part of the dipstick at the top. Note this is not the one at the bottom of the dipstick tube, but rather the one that seals the "cap" against the top of the tube. I found a reference to Lyc part number 74065 for the IO-540, but I can't confirm that the O-320 uses the same part. Anyone know?

Thanks,

-Dj

jrs14855 · #2 08-31-2011, 12:52 PM

Most common is 74068. Alternate is 74065 for a different dipstick. Either is possible on E2D

deej · #3 08-31-2011, 12:58 PM

Quote:

Originally Posted by jrs14855

Most common is 74068. Alternate is 74065 for a different dipstick. Either is possible on E2D

How can I tell which one I need? Mine has a threaded tube at the bottom as well as a threaded dipstick "cap".

mahlon_r · #4 08-31-2011, 01:57 PM

74065= 1 1/8" ID and 74068= 1.0" ID.
Good Luck,
Mahlon
?The opinions and information provided in this and all of my posts are hopefully helpful to you. Please use the information provided responsibly and at your own risk."

deej · #5 08-31-2011, 02:13 PM

Quote:

Originally Posted by mahlon_r

74065= 1 1/8" ID and 74068= 1.0" ID.

Thanks! I think that is exactly what I needed to know!

-Dj