Install rudder cables

itisgood · Post by **itisgood** » Fri Apr 29, 2011 4:05 pm

Guys, I searched and could not find any posts.
How do you get the rudder cable ends through the 5/8 snap rings to thread the rudder cables?
Thanks
Dave

smittysrv · Post by **smittysrv** » Fri Apr 29, 2011 4:52 pm

I removed each grommet and squeeeeeezed it so I could get the cable end through and then put the grommet back in place. In this picture, I had previously run a piece of string behind one of the installed baggage area panels so I could pull the rudder cable through later.

itisgood · Post by **itisgood** » Fri Apr 29, 2011 6:21 pm

Smitty, thanks for the reply and pictures.

I never thought that the grommet would squeeze, I thought that they were too brittle, but it appears they are more flexible than I thought.
Thanks so much,
Dave

flywulf · Post by **flywulf** » Sun Oct 09, 2011 8:17 pm

Hi all, I just assembled my empennage for the second time and also installed the ruder cables to see how they fit. I purchased a set of cables from vans and they seem to be too long,and even better, one is longer than the other one. I can't get full rudder travel with this cable set.

And another problem, the cable where it mounts to the rudder pedal contacts the fuselage former.

Last question, has anyone installed turn barrels in their rudder cables on the RV to help with rigging and tension of the rudder cables?

Has anyone else seen these before?

Photo's, worth 1K verbage each!

http://i1137.photobucket.com/albums/n51 ... ing002.jpg

http://i1137.photobucket.com/albums/n51 ... ing001.jpg

http://i1137.photobucket.com/albums/n51 ... ing003.jpg

thanks,

Ed

smithhb · Post by **smithhb** » Mon Oct 10, 2011 5:04 am

Ed,

You need to consult the drawings. You are connecting them to the rudder pedal incorrectly.

cjensen · Post by **cjensen** » Mon Oct 10, 2011 6:23 am

Bret is right Ed...you have to make little steel attachments that vary in length to get the proper travel.

Clamp the rudder neutral, install one side-

Clamp the other pedals together-

And then install the other side.

The little strips of steel won't be the same length, so they are made to fit. Your kit had some steel strip to make these from.

Bob Barrett · Post by **Bob Barrett** » Mon Oct 10, 2011 6:01 pm

The rudder cables that came with my kit (RV-6A) were of equal length. You may want to check with Vans about your cables. Also Chad shows the correct way to attach the rudder cables and also how to neutralize the rudder. Chad it pains me to admit you are right again

rob · Post by **rob** » Wed Oct 12, 2011 4:37 am

Ed,

I also noticed there is something white in the union of the AN fittings for your vent lines. Are you using some sort of sealant (it looks like teflon plumbing tape) on these? The taper on these surface is the sealing surface, and there should not be any sealant used on these types of fittings.

Rob

cjensen · Post by **cjensen** » Wed Oct 12, 2011 6:41 am

Good eye Rob!!

flywulf · Post by **flywulf** » Wed Oct 12, 2011 10:44 pm

I did see the drawing for the links that need to be fabricated, but there is no room for them. The cables are already too long and adding more length only further decreases the amount of rudder travel to almost nothing.

The other problem with the r/h cable and the position of the grommet hole in the F-902R former concerns me even more though. With any tension on the cable it is going to saw it's way through the grommet and into the former over time. The alignment is that far off.

Both these discrepancies seem to be out of the box so to speak so I think I will have to contact Vans on this one.

flywulf · Post by **flywulf** » Wed Oct 12, 2011 10:49 pm

rob wrote:Ed,

I also noticed there is something white in the union of the AN fittings for your vent lines. Are you using some sort of sealant (it looks like teflon plumbing tape) on these? The taper on these surface is the sealing surface, and there should not be any sealant used on these types of fittings.

Rob

Yes, good eye Rob. That is Fuel Lube on the AN union threads. The manual says to use it on pipe threads but I put some on the threads of the Unions as well. It's not Teflon tape.

Thank you all for the replies, very much appreciated.

Ed

cjensen · Post by **cjensen** » Thu Oct 13, 2011 6:43 am

flywulf wrote:I did see the drawing for the links that need to be fabricated, but there is no room for them. The cables are already too long and adding more length only further decreases the amount of rudder travel to almost nothing.

The other problem with the r/h cable and the position of the grommet hole in the F-902R former concerns me even more though. With any tension on the cable it is going to saw it's way through the grommet and into the former over time. The alignment is that far off.

Both these discrepancies seem to be out of the box so to speak so I think I will have to contact Vans on this one.

In looking at your pictures again, it *appears* as though your pedals are leaned forward, so to speak. I have to wonder if that is what is causing your cables to seem too long. The pedals should be nearly (not 90 degrees, but they have very little lean) straight up and down when in position (the pedal frames won't be, well the left one on each side will be close, since they are offset in their mount from above).

I also think that the cable going thru the 902 bulkhead has everything to do with the position of the pedals. With them leaned forward, it raises the bottom of the pedal frame and the cable so it won't align with the grommet hole.

Post by **Spike** » Thu Oct 13, 2011 6:47 am

Good catch Chad!!

cjensen · Post by **cjensen** » Thu Oct 13, 2011 6:48 am

flywulf wrote:Yes, good eye Rob. That is Fuel Lube on the AN union threads. The manual says to use it on pipe threads but I put some on the threads of the Unions as well. It's not Teflon tape.

Thank you all for the replies, very much appreciated.

Ed

It's not necessary to put it on the flare side of the fitting. If your flares are done properly, the flare flange is the seal. I'm only mentioning this because when you get to inspection, the DAR will more than likely make you removed it, if only to prove to him/her that the lube is not on the flared flange.

cjensen · Post by **cjensen** » Thu Oct 13, 2011 7:00 am

Here's a pretty good wide shot with nothing in the way of how the pedals should be positioned when finished...

flywulf · Post by **flywulf** » Fri Nov 18, 2011 8:50 pm

[/quote]

It's not necessary to put it on the flare side of the fitting. If your flares are done properly, the flare flange is the seal. I'm only mentioning this because when you get to inspection, the DAR will more than likely make you removed it, if only to prove to him/her that the lube is not on the flared flange.[/quote]

Hello all,

I have removed the fuel lube from the AN unions as advised. For the cable issue, I did contact Vans and they asked for measurements of the distance of the rudder mount blocks from the fire wall. This appears to be the problem. The manual stated that when mounting the rudder pedal assy. it is allowed to make extra holes to be able to mount the assy fore or aft as needed. I made one extra set of holes and had the pedals in the aft hole set. Thus making the cables appear to be too long. Now that I have moved them as far forward as possible the cables are working.

http://i1137.photobucket.com/albums/n51 ... ump614.jpg

http://i1137.photobucket.com/albums/n51 ... ump615.jpg

cjensen · Post by **cjensen** » Tue Nov 22, 2011 9:00 pm

Great! Glad you figured this one out Ed.

RivetBangers.com

Install rudder cables

Install rudder cables

cable binding

AN fittings -- sealant

Hmmm......

Re: AN fittings -- sealant

Re: Hmmm......

Re: AN fittings -- sealant

Re: AN fittings -- sealant