Doing our first oil change tonight and have received differing opinions - should we place a layer or two of teflon tape on the oil drain plug before reinstalling?
Appreciate the replies - and didn't use teflon tape! Will look into the Saf Air oil drain - but have been told that that these types of quick drains often/eventually seep. But am glad to hear you've had good luck with them so will reconsider.As I understand it, there is little to no room for Teflon tape in aviation.
There are approved sealers/paste for this purpose. Of course if it was me, I would ditch the plug and use a Saf Air type drain which will eliminate removing/installing the plug.
https://www.aircraftspruce.com/catalog/eppages/safOilDrainValves_07-00879.php
Teflon paste, though most of my newer fittings come with a paste already applied to the fitting.What do all the Teflon tape haters use on your pitot-static fittings?
What do all the Teflon tape haters use on your pitot-static fittings?
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The problem I've seen with the tape is improper application. If the tape is applied where NO tape extends past the end of the fitting it seems there wouldn't be any risk of a fragment getting loose. But I accept that sloppy application is probably common and the admonition to not use tape may be deserved.
I'm sold! Will install one at next oil change!Get a Fumoto quick drain valve. Install it with Loctite 567. Drill a small hole in the quick drain valve body and safety wire it in place and you are done. Get some 3/4" oil hose from your local auto parts store to hook up to the nipple when you want to drain the oil. The larger 3/4" size makes draining much quicker than the Safair drain. Oh, and the Fumoto is $65 less than the Safair. It also has a positive locking mechanism on the ball valve, so it won't open unless you press and turn the lever.
Get a Fumoto quick drain valve. Install it with Loctite 567. Drill a small hole in the quick drain valve body and safety wire it in place and you are done. Get some 3/4" oil hose from your local auto parts store to hook up to the nipple when you want to drain the oil. The larger 3/4" size makes draining much quicker than the Safair drain. Oh, and the Fumoto is $65 less than the Safair. It also has a positive locking mechanism on the ball valve, so it won't open unless you press and turn the lever.
Ok...I have a question.
Why would a small piece of teflon tape be more dangerous if it got loose than a glob of teflon paste? I'm assuming the paste is insoluble in oil and could be very effective at plugging an oil passage...
Appreciate the replies - and didn't use teflon tape! Will look into the Saf Air oil drain - but have been told that that these types of quick drains often/eventually seep. But am glad to hear you've had good luck with them so will reconsider.
Thread drift but whatever, this is a good question.What do all the Teflon tape haters use on your pitot-static fittings?
Thread drift but whatever, this is a good question.
I agree that teflon tape has no place anywhere else in aircraft. But it seems common in P/S systems and I use it there. Right or wrong?
Get a Fumoto quick drain valve. Install it with Loctite 567. Drill a small hole in the quick drain valve body and safety wire it in place and you are done. Get some 3/4" oil hose from your local auto parts store to hook up to the nipple when you want to drain the oil. The larger 3/4" size makes draining much quicker than the Safair drain. Oh, and the Fumoto is $65 less than the Safair. It also has a positive locking mechanism on the ball valve, so it won't open unless you press and turn the lever.
Along the same line here, I'm installing a new fuel pressure gage. Is some type of sealant/thread locker called for?
Seems like just screwing in the fuel pressure input line into the back of the instrument without securing it some way is asking for vibrations to maybe cause loosening over time and leaking fuel into the cockpit behind the instrument panel.
I really don't like messing with fuel lines, and I've never done this job before. Looks like a simple (ha ha) remove-and-replace, but the fuel line input is a thinker for me. Any suggestions will be appreciated.
RC
Would this be ok for use on a fuel line fitting? On sniffle valve threads?No teflon tape........ Use a pipe thread compound with PTFE.... https://www.acehardware.com/departm...-and-cements/plumbers-putty-and-sealers/45281