Oil leaking

[bob888]

I have oil leaking out around the base of the filler neck on top of the engine. I believe all I need to do is replace the gasket but can't find a reference or part number. Anyone have the info? Thanks.

 

[ewumnrr]

You mean part (1)?
That would be order number 70457
https://www.aircraftspruce.com/catalog/eppages/lycominggaskets_07-03056.php
I am not a mechanic but do have the part catalog for the IO-470. Best you get the one that matches your exact engine.

 

[Joe]

Silicone from Real Gaskets

Real Gaskets makes a silicone rubber gasket for this purpose. Pricey at $7 but will not leak or require replacement over the years.

Aircraft Spruce carries it.

 

[bob888]

Got it. Thanks!