 |
Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
|
| View previous topic :: View next topic |
| Author |
Message |
RichardTobin
Joined: 30 Jul 2010
Posts: 1
|
 Posted: Fri Jul 30, 2010 9:29 am Post subject: Fuel system bits and bobs |
 |
|
Dear All,
Following a strong smell of fuel in the cockpit my co-owner and I have recently discovered a leak between a union (FPA904/A) and the selector valve (6749). In the course of tracking down this leak we discovered a lot of the fuel hose was in bad shape due to fuel exposure and chafing. We have decided to replace the selector and its unions along with most of the fuel hose in and around the cockpit.
We didn't build the aircraft and so are quite new to all this...
Our questions,
1 Does the fuel selector part No 6749 click? I noticed in Aircraft Spruce and Speciality a very similar selector to 6749 does, but in the description of 6749 no mention is made of this. The selector we have fitted clicks and so we are keen to keep it the same.
2 When tightening the unions into the selector should any sealing compound be used? The build manual makes no mention of this but given the situation we find ourselves in now we are keen to get this right! Is it because brass is soft enough to seal well?
3 Replacement fuel hose. I have been searching and reading through many postings on this list for a recommendation on the hose to use. We would like to use a hose that reduces as much as possible the petrol smell and gives as long a service life as possible. I have read gates R9 hose is good but can`t find a European supplier. Also a recommendation for the clips to use would be welcome. In our existing system jubilee clips have been used and in a couple of places the band that has passed through the worm drive has cut into nearby hose.
The Aircraft is LAA registered.
Many thanks
Richard
G-OSJN XS 914
| | - The Matronics Europa-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Europa-List |
|
|
|
| Back to top |
|
 |
bmoorhouse
Joined: 29 Apr 2009
Posts: 12
Location: SW England - Somerset to be precise
|
| Posted: Thu Aug 05, 2010 3:42 am Post subject: Re: Fuel system bits and bobs |
|
|
| RichardTobin wrote: | Dear All,
3 Replacement fuel hose. I have been searching and reading through many postings on this list for a recommendation on the hose to use. We would like to use a hose that reduces as much as possible the petrol smell and gives as long a service life as possible. I have read gates R9 hose is good but can`t find a European supplier. Also a recommendation for the clips to use would be welcome. In our existing system jubilee clips have been used and in a couple of places the band that has passed through the worm drive has cut into nearby hose.
The Aircraft is LAA registered.
Many thanks
Richard
G-OSJN XS 914 |
Before my last Permit inspection I had a strong smell of fuel and it was because of the appalling condition of the fuel hoses (not fitted by me I hasten to add) which were "weeping" fuel. The LAA Inspector (Pete Jeffers) immediately spotted the problem and requested that I change the fuel hoses a.s.a.p. - I thank him for his eagle eye on quickly picking up the problem.
It was quite a sobering moment when I got some of the old fuel hose off - it was steel braid covered and after stripping back the braiding the rubber hose inside had cracks about every 2 mm - some of them full depth. It made me shudder to think that these hose were running over the top of the electric pumps - one little spark ....
I got the replacement hose from Europa themselves and although the removal and fitting was a an awkward job (mainly due to access into all the little nooks & crannies) it is not technically difficult. It was not too expensive (from memory about £100 for all the required hoses.
My only problem was sourcing the reducers from the electric pumps (I have a 914 so 2 electric pumps) from 12mm hose to 8mm hose I finally got metal reducers (the previous ones were horrible plastic things) after a bit of digging round the web using good old Google.
A little tip - replace each fuel hose one at a time - this reduces any possible misconnections and do not over-tighten the clips.
| | - The Matronics Europa-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Europa-List |
|
_________________
_______________
Barry Moorhouse
G-JHYS Trigear XS
Rotax 914 UL |
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
|
Powered by phpBB © 2001, 2005 phpBB Group
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
