Running oil stains on nose gear door

[Pinecone]

The problem is, if you don't know the source, you don't know if this is a no worries or BIG worry.

A leaking O-ring, that is just a few drops, can fail and dump out a lot of oil.  

Personally, I want to know where the leak is.

I am now a huge fan of the UV dye.  Clean off the engine, add the die, do a short engine run, then go over the engine with a UV lamp.  Oil leak will be obvious.

Picture is of a suspected rocker cover leak that wouldn't stop, but turned out to be pushrod O-ring.   Last flight, it put about 1 quart overboard in a 30 minute flight.

 

[Lax291]

Think I've found 2 sources of the oil leaks. 

 

#1 Oil filler tube, v will be replacing with the real gasket. 

#2 Found the tube on the underside of the oil separator very loose and oil chasing down. Looked at the clamp and it was loose and looked like it slipped as well. Pushed tube back up to the top and tightened. Hopefully this helps. 

[Gee Bee Aeroproducts]

I have Flurosilicone drain hose with lined breeze aerospace clsmps

 Ref Chafe

we stock 1” wide and 1-1/2 wide silicone chafe in .032 thickness if you want to eliminate all chafe .

GB-std2180 shown

GB-69603 shown

valve cover gaskets

GB-67193 shown

Silicone With fiberglass, no sponge as the fiberglass reinforcement, same as baffle seal , can be cemented to the cover for a perfect installation.

We have all the dies to cut your material or silicone in AMS3320

Your in charge of the material spec

thickness shown 

.032

.063

.093

Tomorrow we’re cutting per customer sample tio541 engine oil pan gasket, it’s no stock At this time.