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Fuel pump - replacement

 
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philperry9



Joined: 23 Nov 2011
Posts: 379

PostPosted: Thu Aug 10, 2017 6:48 pm    Post subject: Fuel pump - replacement Reply with quote

I am probably going to try installing a new (engine driven) fuel pump tomorrow. Has anyone replaced theirs?

What's he process like? I'm guessing I don't need to drain the oil to swap it out?

How much cussing does it require?

It should be a simple process, but I could see fitting it under the plunger and getting everything aligned could be a pain. Any tips would help. I'd like to not fit with it for days.

Thanks,
Phil


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Tim Olson



Joined: 25 Jan 2007
Posts: 2870

PostPosted: Thu Aug 10, 2017 6:57 pm    Post subject: Fuel pump - replacement Reply with quote

Phil,

My RV14 came with a pump that ended up having an SB on it so I replaced
it under warranty.

http://www.myrv14.com/N14YT/maintenance/20170408/index.html

There are some tips there for you. It's both a real pain in the butt,
and also
not too bad, all at the same time. You won't need to drain the oil, but
you should have a new gasket or two on hand. It does require at least
10 minutes of cussing, or it isn't a project. More than 2 hours worth
gets you extra points.

Check out that link. That may be all you need. The safety wire trick was
invaluable.
Tim

On 8/10/2017 9:48 PM, Phillip Perry wrote:
Quote:


I am probably going to try installing a new (engine driven) fuel pump tomorrow. Has anyone replaced theirs?

What's he process like? I'm guessing I don't need to drain the oil to swap it out?

How much cussing does it require?

It should be a simple process, but I could see fitting it under the plunger and getting everything aligned could be a pain. Any tips would help. I'd like to not fit with it for days.

Thanks,
Phil


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Kellym



Joined: 10 Jan 2006
Posts: 1700
Location: Sun Lakes AZ

PostPosted: Thu Aug 10, 2017 6:57 pm    Post subject: Fuel pump - replacement Reply with quote

You want clear access to the area, which may mean removing scat tubing
around the oil cooler and the mufflers. You will need to hold the
plunger up while you insert the new pump. Then hold pump in place while
getting the first allen screw in place. Oh, yeah, you also need all the
fuel lines clear of the area. No, you do not need to drain oil.
Degree of difficulty depends on how clear your access is. I've done the
swap on back of IO-360 in a Mooney. Same pump, tighter firewall clearance.

On 8/10/2017 7:48 PM, Phillip Perry wrote:
Quote:


I am probably going to try installing a new (engine driven) fuel pump tomorrow. Has anyone replaced theirs?

What's he process like? I'm guessing I don't need to drain the oil to swap it out?

How much cussing does it require?

It should be a simple process, but I could see fitting it under the plunger and getting everything aligned could be a pain. Any tips would help. I'd like to not fit with it for days.

Thanks,
Phil


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Kelly McMullen
A&P/IA, EAA Tech Counselor # 5286
KCHD
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kboatright1(at)comcast.ne
Guest





PostPosted: Thu Aug 10, 2017 7:37 pm    Post subject: Fuel pump - replacement Reply with quote

The safety wire trick to put the plunger in a bind and hold it in place is
the way to go. I replaced my (O-320) pump a year or two ago, and it was very
easy. Probably a 30 minute job once I had all of the parts and tools on
hand...

--


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dilsonfrota(at)gmail.com
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PostPosted: Fri Aug 11, 2017 4:17 am    Post subject: Fuel pump - replacement Reply with quote

Hi

It would be fantastic if I knew the safety wire trick. Despite that I
was very, very careful being sure I had the lever under the pushrod.

I had a low fuel pressure while flying to Oshkosh this year. Had to
change the pump a field.

The Emergency Repair Shop located at the south near the ultralite area,
was invaluable helping me with tools and other amenities.

Dilson
Em 11/08/2017 00:35, kboatright1(at)comcast.net escreveu:
[quote]

The safety wire trick to put the plunger in a bind and hold it in
place is the way to go. I replaced my (O-320) pump a year or two ago,
and it was very easy. Probably a 30 minute job once I had all of the
parts and tools on hand...

--


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Tim Olson



Joined: 25 Jan 2007
Posts: 2870

PostPosted: Fri Aug 11, 2017 5:01 am    Post subject: Fuel pump - replacement Reply with quote

I should add that this works best if you don't use the .032 safety wire, but instead use the very fine stuff used to safety wire smaller screws and bolts.
You want something very fine. I have 3 sizes of safety wire in the hangar.
Just nice things to have when you do your own maintenance. You could probably easily use telephone hookup wire or even a strand out of a network cable very easily too.
Tim
[quote] On Aug 11, 2017, at 7:16 AM, Dilson <dilsonfrota(at)gmail.com> wrote:



Hi

It would be fantastic if I knew the safety wire trick. Despite that I was very, very careful being sure I had the lever under the pushrod.

I had a low fuel pressure while flying to Oshkosh this year. Had to change the pump a field.

The Emergency Repair Shop located at the south near the ultralite area, was invaluable helping me with tools and other amenities.

Dilson


Em 11/08/2017 00:35, kboatright1(at)comcast.net escreveu:
>
>
> The safety wire trick to put the plunger in a bind and hold it in place is the way to go. I replaced my (O-320) pump a year or two ago, and it was very easy. Probably a 30 minute job once I had all of the parts and tools on hand...
>
> --


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