REFLECTOR: Oil in Fiberglass

Wed Feb 23 10:35:28 CST 2011

For me, I had a leaking fitting after putting oil in the engine for the 
first time.  Overnight, the oil ran down the lines and into the duct.  
The oil in duct scenario is very common.

So, I would seal the duct areas, and about the rear third of the 
fuselage.  However, I think the nose wheel size determines where stuff 
wants to puddle.  Sealing the ducts will probably be the best.
If you can't seal the ducts, I wouldn't bother.

Probably epoxy with cabosil to thicken it up a little.

On 2/23/2011 10:06 AM, Tom Falls wrote:
>
> This situation concerns me. I assume the best way to prevent it is to 
> coat the interior surface around the oil cooler. Is straight epoxy 
> sufficient or should it be mixed with something . . like flox? How 
> many coats? I thought I remember a while back that we should coat the 
> floor inside the keel for a retract velo. Any other areas? I want to 
> get this done before proceeding any further and have started removing 
> any equipment that will be in the way.
>
> Thanks,
>
> Tom
>
> *From:*reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] 
> *On Behalf Of *Hiroo Umeno
> *Sent:* Tuesday, February 22, 2011 5:57 PM
> *To:* Velocity Aircraft Owners and Builders list
> *Subject:* Re: REFLECTOR: Oil in Fiberglass
>
> I heard that trick and I am yet to try it.  Do you go "top down" or 
> "bottom up"?
>
> Meaning, from the side where oil entered in the first place or from 
> where it started seeping out?  I am thinking bottom up but wanted to 
> check...
>
> *From:*reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] 
> *On Behalf Of *Alex Balic
> *Sent:* Tuesday, February 22, 2011 12:42 PM
> *To:* 'Velocity Aircraft Owners and Builders list'
> *Subject:* Re: REFLECTOR: Oil in Fiberglass
>
> Yea- the Freon has almost no surface tension, so it will penetrate 
> right in there, then it will boil its' way back out and takes the oil 
> with it- just shoot it on, and sort of wipe it up at the same time 
> (using gloves) it will completely degrease the surface.
>
> ------------------------------------------------------------------------
>
> *From:*reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] 
> *On Behalf Of *Brian Michalk
> *Sent:* Tuesday, February 22, 2011 9:48 AM
> *To:* Velocity Aircraft Owners and Builders list
> *Subject:* Re: REFLECTOR: Oil in Fiberglass
>
> How does this work?
>
> Spray the freon in, and it penetrates the material, then pushes the 
> oil out?
>
> On 2/22/2011 8:19 AM, Alex Balic wrote:
>
> USE Freon- but make sure you get the can that does not have oil added 
> to it -, and make sure you keep your hands away from the liquid it is 
> very cold. It will take the oil out.
>
> ------------------------------------------------------------------------
>
> *From:*reflector-bounces at tvbf.org <mailto:reflector-bounces at tvbf.org> 
> [mailto:reflector-bounces at tvbf.org] *On Behalf Of *Al Gietzen
> *Sent:* Monday, February 21, 2011 7:42 PM
> *To:* 'VelocityAircraft Owners and Builders list'
> *Subject:* Re: REFLECTOR: Oil in Fiberglass
>
> Use a heat gun and see if oil bubbles out.
>
> John
>
> Be careful.  You could easily damage the foam core, and/or cause some 
> distortion of the fiberglass by heating above 160-170F.  And the oil 
> doesn't boil off; it will only come out due to expansion of air in the 
> pores.  Perhaps better off flushing with a solvent.
>
> Al
>
>
> --- humeno at microsoft.com <mailto:humeno at microsoft.com> wrote:
>
> From: Hiroo Umeno <humeno at microsoft.com> <mailto:humeno at microsoft.com>
> To: VelocityAircraft Owners and Builders list<reflector at tvbf.org> 
> <mailto:reflector at tvbf.org>
> Subject: Re: REFLECTOR: Oil in Fiberglass
> Date: Tue, 22 Feb 2011 01:10:59 +0000
>
> I have the same issue in my nose compartment.  The oil cooler pipe had 
> a slow leak at the fitting and has saturated the un-sealed floor of 
> the nose compartment with oil.  I noticed it when I saw that the 
> cockpit floor was rather slippery.  Is there  way to get that out?  Or 
> is that a permanent "feature" of my plane?
>
> Hiroo
>
> *From:*reflector-bounces at tvbf.org <mailto:reflector-bounces at tvbf.org> 
> [mailto:reflector-bounces at tvbf.org] *On Behalf Of 
> *aminetech at bluefrog.com <mailto:aminetech at bluefrog.com>
> *Sent:* Saturday, February 19, 2011 5:49 PM
> *To:* VelocityAircraft Owners and Builders list
> *Subject:* REFLECTOR: Oil in Fiberglass
>
> I didn't realize how porous fiberglass is.  The oil line connection to 
> the cooler was leaking.  I cleaned up the oil and was using a heat gun 
> on heat shrink tubing.  In the process the fiberglass under the cooler 
> got heated up and oil began bubbling out of the fiberglass, a LOT of 
> oil.  So I used the heat gun on all areas that had oil and more oil 
> came out.  When I have time, I'll check other areas to see what 
> bubbles out.
>
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