Survey...... "oil line of death 3116" (governor oil feed line)

[Awesomeness]

Can anybody say what this fitting is?
I worked with many strange fittings on P&W engines but first I see this one.
Need nomenclature. All I find is "boss" connection.View attachment 844057
It is P/N 6V8647
4730-01-360-9109 (6V8647)

They are just called "O-Ring Boss" (ORB) fittings.

 

[frank8003]

What would be the "normal" engine running oil pressure in this line?
I did read that the governor mechanism is splash oiled but see not restrictor on inlet.

{Must be engine oil pressure do to it's being able to pump out al the engine oil quick when broken/failed.}
The tube ID is only about .194" ( the ORB fitting to governor is .169").

Normal tube ID for this 1/4" steel stuff [3 bucks a foot] is .194" ID to .180" ID hole,
I won't cut this sample to find out.

What is the 3116 engine "running down the road" oil pressure in this line
versus engine idling oil pressure within this line?

 

[Floridianson]

Believe Frank the TM shows the port that supply's the oil galley and feeds the steel line / governor is right after the oil pump. So full pressure.

 

[frank8003]

I made a lot of money in my life brazing and un-brazing things, especially on jet engine multi-fuel manifolds.
Made quite a few inventions for myself to do it all better and easier especially on the flow bench.
So this story interested me a bunch but I finished now, {don't even have a CAT 3116} but think I can help a bit thru my photos and notes research.

 

[frank8003]

see the video's for a home done brazing setup to see what weakens the metal to allow corrosion

 

[frank8003]

MY final................
Just replace it.
Finger test the ORB's on the ends, if you even think it is loose it is no good..
Replace every few years.......
Dis-allow corrosion.
I sad that all the work I did with the puter and printers it still comes out sideways.
Me thinks all the Cat 3116 owners will understand.
I am with wheelspinner in that the big "C" is really nasty.
I have some time left but did want to get this done and it is done.

 

[epicmotorsports]

I HAVE MADE A KIT WITH FITTING AND BRAIDED STAINLESS LINE THAT IVE USED ON SEVERAL TRUCKS, SAME ONE BEING SOLD FOR LIKE 80.00 ON FLEABAY. I CAN SEND IT TO ANYONE FOR ITS COST AND SHIPPING COST ABOUT 18.00

 

[frank8003]

I HAVE MADE A KIT WITH FITTING AND BRAIDED STAINLESS LINE THAT IVE USED ON SEVERAL TRUCKS, SAME ONE BEING SOLD FOR LIKE 80.00 ON FLEABAY. I CAN SEND IT TO ANYONE FOR ITS COST AND SHIPPING COST ABOUT 18.00

Make pictures of it and put it into Pay it forward or in our for sale place, Thanks

 

[Guruman]

Finally got around to replacing mine. The Botton section of tubing was definitely weakened. Just in handling it, it managed to get a noticeable bend in it.

 

[Gunny 0369]

Decided to remove my line when 2 paint chips showed up unexpectedly—


1994
. 15000 miles
. 3 o’clock position
. Paint chipped/ rusted suspect a crack- no oil leaking yet.
- Removed line -replaced line and wire wheeled the suspected spot-

No cracks observed, line is solid.
Replaced with blue flex line..