Today's Message Index:
----------------------
1. 12:20 AM - AW: Re: Jeffco (Daniel Steiner)
2. 05:57 AM - Re: Jeffco (Bernard Wilder)
3. 12:06 PM - Re: Jeffco (Esa)
Message 1
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Message 2
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Dave,
Thanks for your reply. Helps a lot.
One more question: How well. if at all, did you have to remove the
coating that Aero Designs originally used to seal the tanks ? ? ?
Bernie
On Thu, Sep 5, 2013 at 9:18 PM, David Weaver <mortweaver@sbcglobal.net> wrote:
> Yes I have only used 100LL one time while on a long trip out to western
> Kansas from Illinois. I use 87 Octane with up to 10% ethanol. I currently
> have 343 hours on 912UL Rotax engine. At 5100 RPM cruise is 140 MPH and at
> 5500 RPM cruise is 150 MPH (tricycle gear/large wheel option and 145 lb
> pilot). Propeller is GSC controllable pitch hub with Warp Drive blades.
> The auto fuel burns very clean with no fouling of spark plugs or carb
> malfunction. As I mentioned earlier, where there is a transition between
> dissimilar materials, I would coat that area with a polysulfide fuel sealer
> and not count on Jeffco as it is brittle. The polysulfide material can be
> applied over Jeffco. Jeffco can not be applied over a polysulfide coating
> as it will crinkle and peal away. It is a good idea to periodically use an
> inspection mirror to inspect the areas inside the wing tank at the fuel
> filler ring and the aluminum vent tube for hair line cracks (if Jeffco is
> primary sealer in use).
> Regards - Dave
>
> From: Bernard Wilder <bernard.wilder2@gmail.com>
> To: Pulsar Net <pulsar-list@matronics.com>
> Sent: Thursday, September 5, 2013 3:58 PM
> Subject: Re: Pulsar-List: Jeffco
>
> <bernard.wilder2@gmail.com>
>
> Dave,
>
> Have you been using gas with 10% ethenol ? ? ?
>
> Bernie Wilder
>
> On Thu, Sep 5, 2013 at 11:25 AM, David Weaver <mortweaver@sbcglobal.net>
> wrote:
>> My Pulsar XP wing tanks were resealed with Jeffco many years back after
>> removing the remanants of what was left over from the original sealer
>> shipped with the Aero Designs wing kit. There has been no evidence of
>> degradation of the Jeffco with the exception of the fuel filler transition
>> area from composite to aluminum filler ring. That area was treated with
>> the
>> more flexible polysulfide close out plate sealer. The specs for Jeffco
>> are
>> available on-line. It is an industrial tank sealer that is rated for even
>> acid exposure.
>> Dave Weaver N912GR
>>
>> From: Bernard Wilder <bernard.wilder2@gmail.com>
>> To: Pulsar Net <pulsar-list@matronics.com>
>> Sent: Thursday, September 5, 2013 9:40 AM
>> Subject: Pulsar-List: Jeffco
>>
>> <bernard.wilder2@gmail.com>
>>
>> Asked Aircraft Spruce if Jeffco was impervious to ethenol.
>>
>> Response:
>>
>> I don't know. Will check with our
>> ========================http://www.matronics.com/Navigator?Pulp; -->
>> http:=======================
>> http://www.matronics.co==================/
>>
>>
>>
>>
>>
>>
>>
>>http://forums.matronics  tronics.com/contribution"
>> target="_blank">http://www.matronics.com/contri===============
>
>
Message 3
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Hi David,
With 5100 rpm and 140 miles per hour what is your manifold pressure and fue
l flow?
Esa
Pulsar XP
Rotax 912
-----Original Message-----
From: "David Weaver" <mortweaver@sbcglobal.net>
Sent: =8E9/=8E5/=8E2013 6:28 PM
Subject: Re: Pulsar-List: Jeffco
Yes I have only used 100LL one time while on a long trip out to western Kan
sas from Illinois. I use 87 Octane with up to 10% ethanol. I currently ha
ve 343 hours on 912UL Rotax engine. At 5100 RPM cruise is 140 MPH and at 5
500 RPM cruise is 150 MPH (tricycle gear/large wheel option and 145 lb pilo
t). Propeller is GSC controllable pitch hub with Warp Drive blades. The a
uto fuel burns very clean with no fouling of spark plugs or carb malfunctio
n. As I mentioned earlier, where there is a transition between dissimilar
materials, I would coat that area with a polysulfide fuel sealer and not co
unt on Jeffco as it is brittle. The polysulfide material can be applied ov
er Jeffco. Jeffco can not be applied over a polysulfide coating as it wil
l crinkle and peal away. It is a good idea to periodically use an inspecti
on mirror to inspect the areas inside the wing tank at the fuel filler ring
and the aluminum vent tube for hair line cracks (if Jeffco is primary seal
er in use).
Regards - Dave
From: Bernard Wilder <bernard.wilder2@gmail.com>
Sent: Thursday, September 5, 2013 3:58 PM
Subject: Re: Pulsar-List: Jeffco
m>
Dave,
Have you been using gas with 10% ethenol ? ? ?
Bernie Wilder
On Thu, Sep 5, 2013 at 11:25 AM, David Weaver <mortweaver@sbcglobal.net> wr
ote:
> My Pulsar XP wing tanks were resealed with Jeffco many years back after
> removing the remanants of what was left over from the original sealer
> shipped with the Aero Designs wing kit. There has been no evidence of
> degradation of the Jeffco with the exception of the fuel filler transitio
n
> area from composite to aluminum filler ring. That area was treated with
the
> more flexible polysulfide close out plate sealer. The specs for Jeffco a
re
> available on-line. It is an industrial tank sealer that is rated for eve
n
> acid exposure.
> Dave Weaver N912GR
>
> From: Bernard Wilder <bernard.wilder2@gmail.com>
> To: Pulsar Net <pulsar-list@matronics.com>
> Sent: Thursday, September 5, 2013 9:40 AM
> Subject: Pulsar-List: Jeffco
>
> <bernard.wilder2@gmail.com>
>
> Asked Aircraft Spruce if Jeffco was impervious to ethenol.
>
> Response:
>
> I don't know. Will check with our
> ========================h
ttp://www.matronics.com/Navigator?Pulp; -->
> http:======================
=
> http://www.matronics.co================
==/
>
>
>http://forums.matronics tronics.com/contribution" targ
et="_blank">http://www.matronics.com/contri==========
=====
===========
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