Oil tank studs

[a64pilot]

That’s Cad plated, I assumed as they were high temp they were silver plated.

These were what I was thinking
https://www.aircraftspruce.com/catalog/ ... s20500.php

[6643]

Yeah, those are not the ones I meant. If you need high temp you have a problem! I like the other ones because you can use a smaller wrench and it doesn't interfere with the neck of the tank, especially when you have that bracket in the way. Also, self locking.

[2066]

Jody wrote: "...I got the Wag Aero brace in yesterday,..."


Jody, just curious about the Wag bracket -- is the bore at the stud attachment 1/4", or is it significantly larger than the stud? (I've seen a couple that needed to be bushed to fit/prevent movement there.)

[a64pilot]

Jody wrote: "...I got the Wag Aero brace in yesterday,..."


Jody, just curious about the Wag bracket -- is the bore at the stud attachment 1/4", or is it significantly larger than the stud? (I've seen a couple that needed to be bushed to fit/prevent movement there.)

it looks without being measured to be 5/16” or so. To bush it you would still need a washer to cover the bushing. I plan on putting it on and seeing if the nut covers it well enough and just allowing the slop, otherwise I’d say cut the tab off, weld on another and drill it the correct size.

But then I’ve never even seen one of these installed, so we will see what it takes. I have a brace that someone made from SS rod that a whole lot beefier and heavier, but it just has the rods on the ends, no saddles to mount to the exhaust.

I’m having to deal with a different reality now, For most of my adult life I’ve had access to pretty much unlimited hardware and after the Army, to a whole aircraft manufacturing facility with everything that entails.
Now if I need cotter pins or O-rings I have to order them and pay shipping and wait.
I don’t even have a welder, plan on getting one along with a blasting cabinet and parts washer, but it’s going to take time as I only have so much money.
There are small inverter tig machines, can’t weld aluminum with them, but they are great for steel and SS.

[6277]

It seems prudent to go with self locking nuts of some kind. Agree with John C. that heat is not really a problem in that area. Locating the cotter pin holes means tightening or backing off the nut and could lead to leaks. Ask me how I know this.

[2066]

Jody wrote: "...I got the Wag Aero brace in yesterday,..."


Jody, just curious about the Wag bracket -- is the bore at the stud attachment 1/4", or is it significantly larger than the stud? (I've seen a couple that needed to be bushed to fit/prevent movement there.)

it looks without being measured to be 5/16” or so. To bush it you would still need a washer to cover the bushing. I plan on putting it on and seeing if the nut covers it well enough and just allowing the slop, otherwise I’d say cut the tab off, weld on another and drill it the correct size.

But then I’ve never even seen one of these installed, so we will see what it takes. I have a brace that someone made from SS rod that a whole lot beefier and heavier, but it just has the rods on the ends, no saddles to mount to the exhaust.

I’m having to deal with a different reality now, For most of my adult life I’ve had access to pretty much unlimited hardware and after the Army, to a whole aircraft manufacturing facility with everything that entails.
Now if I need cotter pins or O-rings I have to order them and pay shipping and wait.
I don’t even have a welder, plan on getting one along with a blasting cabinet and parts washer, but it’s going to take time as I only have so much money.
There are small inverter tig machines, can’t weld aluminum with them, but they are great for steel and SS.

Many of us early on were aghast at the very idea of buying/using Harbor Freight tools & equipment, but now have to admit that they are rolling out some of very useable "quality" and at reasonable prices. I have neighbors here at the Airpark with some of HF's welding equipment & impressed with what they're able to accomplish with it. In any event, though, I hear you -- whether at SNF, OSH or just "shopping" the Av catalogues it's easy to spend a LOT of $$ just trying to amass the essentials in hardware and tools that we "might" need. Ebay can be hit/miss, certainly, but there are fellow aviators selling there from time to time with good buys on "stuff we need" -- worth an occasional look. In any event, your experience & expertise is very valuable to a lot of us -- plz keep sharing as you work through the ongoing "project".

[a64pilot]

MS21042.jpg

Here is the MS 21043 nut, same thing just silver plated as opposed to Cadmium plated.
Need to call Spruce in the morning I guess, I ordered and paid for 10, not 5.
Or just let it go.

[2066]

FWIW, this Ebay seller (planepartsinc 4336) MS21042-4 low profile hex nut 10pk -- $2.95 + $3.95 shipping. They're located @ Poplar Grove, IL. (Ebay item # 123101876755). Mac