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Unusual Oil Leak

 
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lbmathias1(at)gmail.com
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PostPosted: Wed Sep 23, 2015 11:43 am    Post subject: Unusual Oil Leak Reply with quote

Dear Jabiru engine owners,
        I have been experiencing a strange phenomenon: oil on the top of my dipstick.   After thoroughly checking the engine for leaks and finding none, I discovered the cause is capillary action up the dipstick through the plastic cap.   I fixed it by pushing Liquid Nail around the aluminum tube opening in the plastic cap and letting it dry thoroughly before flying; cleaning off any excess keeps it still looking good.  If you look at the bottom of the cap, you can see just enough space around the aluminum for a bit of oil to go through.  I think any heat resistant sealant would work; the Liquid Nail held through a 2.5 hour flight but if needed, I will add some more and keep a close eye on it.
Blue skies,

Linda Mathias

Lightning with Jabiru 3300

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pete(at)usjabiru.com
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PostPosted: Wed Sep 23, 2015 12:37 pm    Post subject: Unusual Oil Leak Reply with quote

Loctite 290 will also work.  It wicks its way into small cracks.
Pete

From: owner-jabiruengine-list-server(at)matronics.com [mailto:owner-jabiruengine-list-server(at)matronics.com] On Behalf Of Michael Dare
Sent: Wednesday, September 23, 2015 2:54 PM
To: jabiruengine-list(at)matronics.com; lightning-list(at)matronics.com
Subject: Re: Unusual Oil Leak


I have had the same issue but had not done anything for it. Sounds like a great idea.


On Wed, 23 Sep 2015 at 12:43 Linda Mathias <lbmathias1(at)gmail.com (lbmathias1(at)gmail.com)> wrote:
Quote:

Dear Jabiru engine owners,

I have been experiencing a strange phenomenon: oil on the top of my dipstick. After thoroughly checking the engine for leaks and finding none, I discovered the cause is capillary action up the dipstick through the plastic cap. I fixed it by pushing Liquid Nail around the aluminum tube opening in the plastic cap and letting it dry thoroughly before flying; cleaning off any excess keeps it still looking good. If you look at the bottom of the cap, you can see just enough space around the aluminum for a bit of oil to go through. I think any heat resistant sealant would work; the Liquid Nail held through a 2.5 hour flight but if needed, I will add some more and keep a close eye on it.

Blue skies,

Linda Mathias

Lightning with Jabiru 3300
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