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Search: Posts Made By: mtnflyr
Forum: Safety 05-10-2022, 12:32 PM
Replies: 34
Views: 9,595
Posted By mtnflyr
Ah. Thanks. Now that makes sense. There is no...

Ah. Thanks. Now that makes sense. There is no load on the pedal that the cable is attached to when it is being pressed by the pilot, but when the force is transferred by the tube from the other...
Forum: Safety 05-10-2022, 08:06 AM
Replies: 34
Views: 9,595
Posted By mtnflyr
The instructions I got with my gussets don't talk...

The instructions I got with my gussets don't talk about installing some on the aft side of the pedals. Seems that all the pedals would be loaded in compression on the forward (firewall) side. Can...
Forum: Traditional Aircraft Engines 04-10-2022, 12:47 PM
Replies: 20
Views: 9,957
Posted By mtnflyr
This is an amazing forum

I know the last post on this topic was from 14 years ago, but I wanted to express my amazement at how even the smallest detail can be found on the Vans Air Force forum. I am replacing the clunky old...
Forum: Reviews 03-31-2022, 12:15 PM
Replies: 2
Views: 655
Posted By mtnflyr
Susie at UMA is awesome!

Rarely, no, almost never do I get the kind of customer service I received today at UMA. My RV-6A has a cranky tachometer and I finally decided to replace it. I've had problems in the past with...
Forum: RV General Discussion/News 07-11-2021, 12:24 PM
Replies: 31
Views: 7,791
Posted By mtnflyr
Inadvertent Fix

After checking everything I could, based on all the inputs, I gave up and decided to live with the out of trim condition in the landing configuration and work on other projects. One of those was...
Forum: Traditional Aircraft Engines 06-07-2021, 09:39 PM
Replies: 38
Views: 8,870
Posted By mtnflyr
I got caught up doing the work and didn't think...

I got caught up doing the work and didn't think about taking pictures. I still have to wobble test the other three exhaust valves, so I may remember to take pictures of the tools mounted on the...
Forum: RV-4 06-06-2021, 09:13 PM
Replies: 66
Views: 15,087
Posted By mtnflyr
That's not been the experience of most of the...

That's not been the experience of most of the folks who have battled shimmy and wrote about it on this forum. You'll find a bunch who discovered out of round and out-of-balance tire/wheel...
Forum: Traditional Aircraft Engines 06-06-2021, 08:38 PM
Replies: 38
Views: 8,870
Posted By mtnflyr
Interestingly, that's not all that happens with...

Interestingly, that's not all that happens with Lycoming engines, according to Mike Busch. I found this presentation while researching my issue:

https://www.youtube.com/watch?v=7ohsVvYbAaQ

And...
Forum: Traditional Aircraft Engines 06-06-2021, 08:12 PM
Replies: 38
Views: 8,870
Posted By mtnflyr
Images of the lapped valve and some of the tools I made to do t the job

After lapping the valve. I was pleasantly surprised how easily the pitting cleaned up. ...
Forum: Traditional Aircraft Engines 06-06-2021, 07:58 PM
Replies: 38
Views: 8,870
Posted By mtnflyr
Yeah. This was a learning experience. I can...

Yeah. This was a learning experience. I can attest that the 4 finger tool doesn't grip the stem firmly enough. Next time I'll have the right...
Forum: Traditional Aircraft Engines 06-06-2021, 12:24 AM
Replies: 38
Views: 8,870
Posted By mtnflyr
Results

Thanks for all the help and recommendations. We decided to lap the valve in place and ream the guide after the wobble test showed .010” movement in the valve stem. Managed to drop the valve into...
Forum: RV-4 06-04-2021, 10:11 PM
Replies: 66
Views: 15,087
Posted By mtnflyr
Yeah. From the cockpit, it felt like I was going...

Yeah. From the cockpit, it felt like I was going to break the gear leg! Part of the issue was that all three leg retaining bolts had not been fit correctly when the airplane was built in '95 and...
Forum: RV-4 06-04-2021, 12:23 PM
Replies: 66
Views: 15,087
Posted By mtnflyr
I didn't weigh the stiffeners. Cut them out of...

I didn't weigh the stiffeners. Cut them out of 1/4" scrap I had in my shop. My shimmy problem was severe. You can see it in this video:

https://youtu.be/SfFXGsx36TU

I talked to Dave about how...
Forum: Traditional Aircraft Engines 06-04-2021, 12:01 PM
Replies: 38
Views: 8,870
Posted By mtnflyr
I did remove the valve spring to check the valve...

I did remove the valve spring to check the valve guide and push the valve in enough to get a good look at the seat. The valve moves freely in the guide with very little wobble. I'm making a wobble...
Forum: Traditional Aircraft Engines 06-04-2021, 12:51 AM
Replies: 38
Views: 8,870
Posted By mtnflyr
I take it you arenít happy with the VA-400...

I take it you arenít happy with the VA-400 resolution.
Forum: Traditional Aircraft Engines 06-03-2021, 09:02 PM
Replies: 38
Views: 8,870
Posted By mtnflyr
I think that's the next step for this valve. ...

I think that's the next step for this valve. Worth a try as it doesn't cost me more than the price of some lapping compound. Couple of questions:

- What lapping compound did you use?
- I'm...
Forum: Traditional Aircraft Engines 06-03-2021, 08:55 PM
Replies: 38
Views: 8,870
Posted By mtnflyr
Ran the engine long enough for the EGTs to come...

Ran the engine long enough for the EGTs to come up and #3 was hardly rising at all. Very rough. Compression test the next day, cold. 30/80 in #3. Very obvious air sound in the exhaust pipe. ...
Forum: Traditional Aircraft Engines 06-03-2021, 08:45 PM
Replies: 38
Views: 8,870
Posted By mtnflyr
https://www.amazon.com/gp/product/B086X1XGN1/ref=p...

https://www.amazon.com/gp/product/B086X1XGN1/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&th=1

Not sure I'd recommend it. The first one I received wouldn't hold a charge. I returned it to Amazon and...
Forum: RV-4 06-03-2021, 08:31 PM
Replies: 66
Views: 15,087
Posted By mtnflyr
Aluminum stiffeners

David Paule recommended I use aluminum for my stiffeners after a discussion on how to resolve severe main gear shimmy. Hopefully, you can see these images. The stiffeners are stout and you could...
Forum: Traditional Aircraft Engines 06-03-2021, 03:02 PM
Replies: 38
Views: 8,870
Posted By mtnflyr
Need Help Analyzing Borescope Images - Leaking Exhaust Valve on Lycoming O-360-A2D

Fired up the O-360 in our RV-6A last week and it ran rough, with EGT in the #3 cylinder failing to come up. Shut down the engine and pulled the plugs - they looked find. Then, a compression test...
Forum: RV-6/6A 11-21-2020, 01:33 PM
Replies: 2
Views: 1,253
Posted By mtnflyr
Slider Canopy Leak - need recommendations

I own but did not build a 6A completed in '95. On a cross country from Colorado to Maine I discovered the original builder didn't put any sealant between the plexiglass and the frame of my slider...
Forum: RV General Discussion/News 01-08-2020, 03:09 PM
Replies: 31
Views: 7,791
Posted By mtnflyr
How to fix RV-6A that needs large changes in elevator trim

I bought a 6A some time ago and need some help understanding what changes I can make to it to reduce the need for large changes in elevator trim.

On final, I can't trim out the stick force with full...
Showing results 1 to 22 of 22

 
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