Today's Message Index:
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1. 07:42 AM - Re: Re: HRII Fuel Pump Vent Clearance (Denis Walsh)
2. 07:47 AM - fuel pump vent clearance (Vince Frazier)
3. 08:12 AM - Re: Re: HRII Fuel Pump Vent Clearance (Noel Rodman)
4. 08:22 AM - Re: fuel pump vent clearance (viperpilot)
5. 08:24 AM - Re: HRII Fuel Pump Vent Clearance (viperpilot)
6. 08:55 AM - Re: Re: fuel pump vent clearance (Rob Ray)
7. 08:57 AM - Re: Re: fuel pump vent clearance (Rob Ray)
8. 10:16 AM - Re: fuel pump vent clearance (viperpilot)
Message 1
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| Subject: | Re: HRII Fuel Pump Vent Clearance |
Hey Randy
I am not a viper pilot but I play one in my dreams frequently. I could say the
same about rockets. I can dream anyway.
In the dim reaches of my long term memory, I believe this is a long standing problem.
The RV 4 has a clearance problem which sounds like yours to me. If so,
Van's has a $9.50 solution. It is: Part Number = F OVERFLOW PLUG 1/8"
Here is a link to the catalog:
http://vansaircraft.com/cgi-bin/store.cgi?ident=1355067275-394-210&browse=engines&product=overflow-fitting
Hope this helps.
Denis
On 8Dec, 2012, at 5:08 , "viperpilot" <nsage86@comcast.net> wrote:
>
> Thanks guys! Stuart's solution is certainly the most elegant, but simply removing
the fitting would seem to work also, as there should be no fuel coming out
of the port if all is well inside the fuel pump. Seems like the only reason
to have the drain line is to make it easier to ID the problem and I am sure
the FAA required it for certification.
>
> Thanks,
> Randy
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=390080#390080
>
>
>
>
>
>
>
>
>
>
Message 2
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| Subject: | fuel pump vent clearance |
I know of 2 other techniques to eliminate the fuel pump vent clearance
problem:
!) From memory..... according to Tom Martin, you may be able to
disassemble the fuel pump and re-clock the vent port to a different spot.
2)* From www.vincesrocket.com Rather than disassemble the pump so the
vent port would clear the firewall, I did the following: the vent was
plugged with a pipe plug. I had to trim the bottom of the pipe plug to
clear the hose barb. I tapped a hole in the side of the overflow vent and
installed a hose barb for the overflow line. Be sure to put a piece of
foam inside the vent port while drilling and tapping to keep the chips out
of the pump. And clean out all of the foam and chips before the final
assembly... duh. I used JB Weld to seal/glue the hose barb in place since
there is no way to safety it and my tapped hole was just a little loose.
Not shown in the picture was the final grinding off of the pipe plug so
that no excess metal was left sticking out.* Here's a photo:
http://www.vincesrocket.com/2004-03-30/fuel%20pump%20vent%20mod.jpg
Vince Frazier
Flyboy Accessories
www.flyboyaccessories.com
Message 3
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| Subject: | Re: HRII Fuel Pump Vent Clearance |
Denis=2CThat was great=2C I will be laughing all day about that one=2C Than
ks.
> Subject: Re: Rocket-List: Re: HRII Fuel Pump Vent Clearance
> From: denis.walsh@comcast.net
> Date: Sun=2C 9 Dec 2012 08:42:21 -0700
> To: rocket-list@matronics.com
>
>
> Hey Randy
>
> I am not a viper pilot but I play one in my dreams frequently. I could s
ay the same about rockets. I can dream anyway.
>
> In the dim reaches of my long term memory=2C I believe this is a long sta
nding problem. The RV 4 has a clearance problem which sounds like yours to
me. If so=2C Van's has a $9.50 solution. It is: Part Number = F OVERFLO
W PLUG 1/8"
>
>
> Here is a link to the catalog:
>
> http://vansaircraft.com/cgi-bin/store.cgi?ident=1355067275-394-210&brow
se=engines&product=overflow-fitting
>
>
> Hope this helps.
>
> Denis
> On 8Dec=2C 2012=2C at 5:08 =2C "viperpilot" <nsage86@comcast.net> wrote:
>
> >
> > Thanks guys! Stuart's solution is certainly the most elegant=2C but si
mply removing the fitting would seem to work also=2C as there should be no
fuel coming out of the port if all is well inside the fuel pump. Seems lik
e the only reason to have the drain line is to make it easier to ID the pro
blem and I am sure the FAA required it for certification.
> >
> > Thanks=2C
> > Randy
> >
> >
> >
> >
> > Read this topic online here:
> >
> > http://forums.matronics.com/viewtopic.php?p=390080#390080
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
>
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Message 4
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| Subject: | Re: fuel pump vent clearance |
Thanks, Vince! I'll put those two tricks in my quiver. Now, I'm wondering if
I could just tap the hose plug for a barb after drilling a small hole into the
pump end of the plug... That may give me enough clearance and I would have the
chips and shavings on the outside the whole while.
I appreciate your posts and your website. They have been great sources of information
over the past several months!
Randy Sage
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=390089#390089
Message 5
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| Subject: | Re: HRII Fuel Pump Vent Clearance |
Denis! My Man!!
Thanks,
Randy
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=390090#390090
Message 6
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| Subject: | Re: fuel pump vent clearance |
Randy,
All good ideas. On my HR2 I made a small indentation in the firewall shelf to provide
the clearance for the fitting. Worked great lasts a long time...
Smokey
Sent from my iPhone
On Dec 9, 2012, at 10:21 AM, "viperpilot" <nsage86@comcast.net> wrote:
>
> Thanks, Vince! I'll put those two tricks in my quiver. Now, I'm wondering if
I could just tap the hose plug for a barb after drilling a small hole into the
pump end of the plug... That may give me enough clearance and I would have
the chips and shavings on the outside the whole while.
>
> I appreciate your posts and your website. They have been great sources of information
over the past several months!
>
> Randy Sage
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=390089#390089
>
>
>
>
>
>
>
>
>
>
Message 7
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| Subject: | Re: fuel pump vent clearance |
BTW Randy, I am a former Viper Pilot for 26 years, Dreams become reality when pursued
fervently.
Keep on dreaming!
Smokey
Sent from my iPhone
On Dec 9, 2012, at 10:21 AM, "viperpilot" <nsage86@comcast.net> wrote:
>
> Thanks, Vince! I'll put those two tricks in my quiver. Now, I'm wondering if
I could just tap the hose plug for a barb after drilling a small hole into the
pump end of the plug... That may give me enough clearance and I would have
the chips and shavings on the outside the whole while.
>
> I appreciate your posts and your website. They have been great sources of information
over the past several months!
>
> Randy Sage
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=390089#390089
>
>
>
>
>
>
>
>
>
>
Message 8
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| Subject: | Re: fuel pump vent clearance |
Smokey,
Thanks! I wish I had a the room, now but it's all together. Not an option I am
afraid.
Re Viper flyng, me too... 24 years of bliss! (well, except for the 4 years in the
5-sided puzzle palace!).
Hope to fly with you some day...
[Laughing]
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=390102#390102
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