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Search: Posts Made By: Cammie Patch
Forum: RV-12/RV-12iS 08-02-2020, 12:35 PM
Replies: 12
Views: 2,160
Posted By Cammie Patch
Check the brass throttle arms where the springs...

Check the brass throttle arms where the springs rub. The steel spring wears a groove into the brass, which eventually causes it to catch, leading to uneven throttle opening.
both my -12s had to have...
Forum: RV-12/RV-12iS 08-02-2020, 12:31 PM
Replies: 2
Views: 554
Posted By Cammie Patch
Play between left and right trim tabs

Just a heads up. I noticed movement between the left and right sides of the stabilator trim tabs. This aircraft had SB 18-02-03 c/w two years ago, by replacing the inboard ribs.

I found that the...
Forum: RV-12/RV-12iS 07-10-2020, 04:50 PM
Replies: 29
Views: 4,536
Posted By Cammie Patch
I fixed our canopy latch by JB Welding a small...

I fixed our canopy latch by JB Welding a small rare earth magnetic on front of the stop, it's just enough to keep it from latching itself. Everything else is just temporary.
Forum: RV-12/RV-12iS 06-11-2020, 12:56 PM
Replies: 43
Views: 10,937
Posted By Cammie Patch
Yes the -12s are running pretty well. We have put...

Yes the -12s are running pretty well. We have put about 1000 hours on them in the last 1.5 years or so. The magnetic plugs are very clean.

One of them has apparently vapor locked on the take off...
Forum: RV-12/RV-12iS 03-25-2020, 07:14 AM
Replies: 4
Views: 756
Posted By Cammie Patch
Thank you so much!

Thank you so much!
Forum: RV-12/RV-12iS 03-25-2020, 07:14 AM
Replies: 4
Views: 756
Posted By Cammie Patch
I have, twice. It?s stainless, and very thin.

I have, twice. It?s stainless, and very thin.
Forum: RV-12/RV-12iS 03-24-2020, 02:58 PM
Replies: 4
Views: 756
Posted By Cammie Patch
I need an older-style exhaust (#2 cylinder pipe)

Do any of you who have upgraded to the newer style exhaust still have your #2 cylinder exhaust that you can sell me? I have an RV12 in a flight school, with a cracked #2 pipe, and Van's can only sell...
Forum: RV-12/RV-12iS 03-20-2020, 05:03 PM
Replies: 6
Views: 2,463
Posted By Cammie Patch
I added shims per the mx manual to take up any...

I added shims per the mx manual to take up any slack caused by bellville washers flattening out. This keeps the gearbox tighter so less chatter.
Forum: RV-12/RV-12iS 03-20-2020, 05:01 PM
Replies: 9
Views: 1,264
Posted By Cammie Patch
Keep checking it. I've had mine welded twice, and...

Keep checking it. I've had mine welded twice, and just discovered it cracked again, for the third time. Very frustrating to have to spend $1400+ to replace all the exhausts, because they are not...
Forum: RV-12/RV-12iS 02-08-2020, 04:24 PM
Replies: 181
Views: 34,060
Posted By Cammie Patch
We just did this replacement. It's definitely a...

We just did this replacement. It's definitely a two person job.
The drill bits work pretty well, but it's not easy for the person in the cockpit to keep the bushings pushed into the hole. Definitely...
Forum: RV-12/RV-12iS 02-07-2020, 03:29 PM
Replies: 6
Views: 2,463
Posted By Cammie Patch
Since it's an SLSA, we can't switch to the EarthX...

Since it's an SLSA, we can't switch to the EarthX batteries, but, it does charge at the slower-to-ramp-up speed.
Forum: RV-12/RV-12iS 02-06-2020, 10:33 AM
Replies: 6
Views: 2,463
Posted By Cammie Patch
My experience with SBs, and cracks

I have two RV12 SLSAs in my school, and I am an A&P/IA, LSRM, and Rotax-Heavy qualified. I love these planes but want to publish some of my experiences to help you all out.

1. Definitely check for...
Forum: RV-12/RV-12iS 10-22-2019, 12:54 PM
Replies: 6
Views: 1,874
Posted By Cammie Patch
Those RPM drops are normal. At 4000, the engine...

Those RPM drops are normal. At 4000, the engine is at it's leanest position. In the summer you will get less RPM drop, since the combustion is happier. In the winter, it would prefer more fuel, thus...
Forum: RV-12/RV-12iS 09-22-2019, 08:32 PM
Replies: 43
Views: 10,937
Posted By Cammie Patch
I bought another SLSA RV12, and have seen the...

I bought another SLSA RV12, and have seen the same wear in the gearbox, but the magnetic plug is pretty clean. I shimmed it up and switched oil. Still has some vibration, so I may crack it open again...
Forum: RV-12/RV-12iS 09-22-2019, 08:30 PM
Replies: 25
Views: 4,056
Posted By Cammie Patch
The sweet spot for a 912 is 5200 RPM.

The sweet spot for a 912 is 5200 RPM.
Forum: RV-12/RV-12iS 08-01-2019, 05:39 PM
Replies: 9
Views: 1,648
Posted By Cammie Patch
I drilled a small hole in a flange on the...

I drilled a small hole in a flange on the firewall angles and put a tie wrap through the hole and over the end of the pin.
Forum: RV-12/RV-12iS 07-20-2019, 05:28 PM
Replies: 49
Views: 20,538
Posted By Cammie Patch
I don't like the math of a 3-bladed prop. It...

I don't like the math of a 3-bladed prop.
It increases my chances of hitting my head on it by 50%.
Forum: RV-12/RV-12iS 05-03-2019, 09:53 PM
Replies: 14
Views: 2,519
Posted By Cammie Patch
Please don't re-certify, the SLSAs are hard to...

Please don't re-certify, the SLSAs are hard to come by. Why not sell it to me and get a nice ELSA built by an A&P?
Forum: RV-12/RV-12iS 04-28-2019, 05:04 PM
Replies: 43
Views: 10,937
Posted By Cammie Patch
A little update

I just finished another 100 hour inspection on our RV12 (SLSA). We are putting about 70 hours a month on it.

About a month ago I ordered a new gear set and dog gear for the gearbox. If you remember,...
Forum: RV-12/RV-12iS 04-28-2019, 04:43 PM
Replies: 14
Views: 2,519
Posted By Cammie Patch
Depends. My first big job as an LSRM was a...

Depends.
My first big job as an LSRM was a rubber hose change on a CTSW. It took me five weeks! It was also an annual IIRC, and I wanted it to be perfect. I would spend all morning studying, then...
Forum: RV-12/RV-12iS 04-15-2019, 02:56 PM
Replies: 43
Views: 10,937
Posted By Cammie Patch
True about the avgas lead. We rarely need to use...

True about the avgas lead.
We rarely need to use avgas. Running about 60 hrs/month. I do 50 hour oil changes, and 100 hour inspections, but this is hobbs time. Flight time is actually 70% of hobbs,...
Forum: RV-12/RV-12iS 04-12-2019, 10:10 PM
Replies: 43
Views: 10,937
Posted By Cammie Patch
No yet, i've been so swamped with broken...

No yet, i've been so swamped with broken airplanes...
But, I did annual a Tecnam this week with a 914, and I could hear quite a bit of gearbox chatter around 2000 rpm. He has been using aeroshell...
Forum: RV-12/RV-12iS 04-03-2019, 11:18 AM
Replies: 43
Views: 10,937
Posted By Cammie Patch
Good ideas.

Good ideas.
Forum: RV-12/RV-12iS 04-02-2019, 09:05 AM
Replies: 43
Views: 10,937
Posted By Cammie Patch
Very. Original prop serial number.

Very. Original prop serial number.
Forum: RV-12/RV-12iS 04-01-2019, 04:24 PM
Replies: 43
Views: 10,937
Posted By Cammie Patch
That's interesting . I haven't seen a problem...

That's interesting . I haven't seen a problem with that bearing unless there was a prop strike. When that happens, it can bend the bolts that hold the bearing in place, and you may find cracks...
Forum: RV-12/RV-12iS 04-01-2019, 12:58 PM
Replies: 5
Views: 870
Posted By Cammie Patch
Adel clamps have taken a lot of verbal abuse over...

Adel clamps have taken a lot of verbal abuse over the years.
Needle nose vice grips are handy to have too.
Forum: RV-12/RV-12iS 04-01-2019, 11:24 AM
Replies: 43
Views: 10,937
Posted By Cammie Patch
Just for background, I am an A&P/IA Rotax tech,...

Just for background, I am an A&P/IA Rotax tech, Rotax heavy maintenance qualified, and have been working on Rotax 4 cylinder aircraft engine for about ten years. I've worked on gearboxes quite a bit....
Forum: RV-12/RV-12iS 04-01-2019, 07:58 AM
Replies: 43
Views: 10,937
Posted By Cammie Patch
Gearbox wear: Mobile 1 vs Aeroshell

I have an RV12 SLSA with 300+ hours on it. It has run Aeroshell Sport 4 since birth. I bought it at about 165 hours, and it has had quite a bit of vibration at low RPMs. At startup, I have to idle...
Showing results 1 to 28 of 28

 
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