# Rubber pieces in oil

**URL:** <https://sonexpilots.org/t/rubber-pieces-in-oil/918>\
**Category:** Aerovee\
**Tags:** SonexBuildersnet\
**Created:** [May 24, 2024, 5:00am UTC](https://sonexpilots.org/t/rubber-pieces-in-oil/918 "2024-05-24T05:00:00Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![ArchiveBot](https://sonexpilots.org/letter_avatar_proxy/v4/letter/a/b5a626/32.png) [@ArchiveBot](https://sonexpilots.org/u/ArchiveBot)\
**Post date:** [May 24, 2024, 5:00am UTC](https://sonexpilots.org/t/rubber-pieces-in-oil/918/1 "2024-05-24T05:00:00Z")

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### Rubber pieces in oil

Posted: **Fri May 24, 2024 12:29 am**

by **pilotyoung**

I drained the oil in my AeroVee engine Tuesday and found little pieces of rubber in the oil screen. I have the mini-sump kit on my engine. I am wondering if anyone has any idea what the pieces of rubber could be. I am including a picture of the pieces on a white paper towel.

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### Re: Rubber pieces in oil

Posted: **Fri May 24, 2024 8:39 am**

by **bvolcko38**

The only thing I can think of is possibly parts of a damaged O ring.

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### Re: Rubber pieces in oil

Posted: **Fri May 24, 2024 6:56 pm**

by **BRS**

Looks like gasket material. Perhaps from the sump cover?

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### Re: Rubber pieces in oil

Posted: **Thu May 30, 2024 9:00 am**

by **Raluttio**

How many hours on the engine? If it is still in the double digits then my first thought is a couple big chunks of excess gasket maker broke loose. The only rubber in the engine is the six o-rings on the case studs - this doesn’t look like one of those though.

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### Re: Rubber pieces in oil

Posted: **Thu May 30, 2024 9:06 am**

by **pilotyoung**

The engine has over 400 hours on it.