Steel elbow size for prop gov?

[miyu1975]

This is the elbow angle at the front of the engine that connects to the prop governor. As previously told to do I replaced the aluminum tubing and elbow. I was hoping someone may know the correct size steel elbow I need here. It would appear that I ordered the wrong size the first time. I ordered the 4-4 that is 9.50 from spruce...see below. The pipe end went into the engine fine, but the part sticking out is too small for the 3/8 stainless steel tubing I have.



Parts list from spruce...below..

AN822
(MS20822)

ELBOW, Flared Tube and Pipe Thread, 90?
Size No. Tube O.D. Thread Size Steel Aluminum
Steel Alum Price Buy Price Buy
2 2D 1/8 1/8 $18.95 $10.50
3 3D 3/16 1/8 $8.75 $5.25
4 4D 1/4 1/8 $7.25 $5.75
4-4 4-4D 1/4 1/4 $9.50 $6.50
- 5-4D 5/16 1/4 - - $7.75
5 5D 5/16 1/8 $8.25 $8.50
6 6D 3/8 1/4 $8.70 $6.95
6-2 6-2D 3/8 1/8 $14.50 $6.50
6-6 6-6D 3/8 3/8 $14.00 $8.90
8 8D 1/2 3/8 $12.75 $7.75
10 10D 5/8 1/2 $21.75 $10.75
12 12D 3/4 3/4 $22.95 $14.25

[Lars]

Ryan, you need an AN822-6 elbow. That'll be steel, with -6AN for the tube and 1/4" NPT for the engine block. I can't tell from the photo, is that a new fitting or the one that was in the block when you got the engine? It's definitely steel (black) and is obviously 1/4" NPT since it threads into the block, but without something to compare to I can't tell if it's -4AN or -6AN. If the latter, you are good to go.

[miyu1975]

got thx..I thought it was -6 but wasn't sure and didn't want to order the wrong part again..thx

[Lars]

Measure over the threads to be sure.

9/16" diameter = -6AN; 7/16" diameter = -4AN.