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Search: Posts Made By: waterboy2110
Forum: RV-12 Yesterday, 08:12 AM
Replies: 87
Views: 9,023
Posted By waterboy2110
updated charts

I've changed the X Axis on the charts to session time.

There was a fair bit of time holding short waiting for a regional to land on the crossing runway. The temps were still in spec per Rotax and...
Forum: RV-12 Yesterday, 12:39 AM
Replies: 87
Views: 9,023
Posted By waterboy2110
Perhaps, in this case the plane wasn't flying -...

Perhaps, in this case the plane wasn't flying - just building heat. The fact that there is no carb heat on the 12 would indicate the temp of the air in the cowl is enough to avoid any carb ice. Was...
Forum: RV-12 Yesterday, 12:13 AM
Replies: 87
Views: 9,023
Posted By waterboy2110
It's mentioned in the service letter....

It's mentioned in the service letter. Rotax-Owners also mentioned it. I couldn't tell you if the carbs were set up to run in hot or cold air but I would assume when tested at the factory they're...
Forum: RV-12 12-09-2017, 02:15 PM
Replies: 87
Views: 9,023
Posted By waterboy2110
Thanks everyone for your input and wanting to...

Thanks everyone for your input and wanting to help solve this issue. I will get the head and plug pics posted.

The x axis on my charts is data points I believe. I can change it to time.


While I...
Forum: RV-12 12-08-2017, 08:26 AM
Replies: 87
Views: 9,023
Posted By waterboy2110
Agreed - Using the graph and the EFIS data I...

Agreed - Using the graph and the EFIS data I would say the engine failed because it was run at less than 5200 RPM and at 30 inches of manifold. Also, the document mentions pulling in hot air - which...
Forum: RV-12 12-07-2017, 04:00 PM
Replies: 87
Views: 9,023
Posted By waterboy2110
Hi Andrew - I've read that document before and...

Hi Andrew - I've read that document before and re-read it again after discussing it with my Rotax partner this morning. I re-read your post and now it makes more sense. In essence, Vans is having you...
Forum: RV-12 12-06-2017, 10:09 PM
Replies: 8
Views: 739
Posted By waterboy2110
Six pistons on a 12. Cool. Looks like you...

Six pistons on a 12. Cool. Looks like you modified the turtle deck. Nice.
Forum: RV-12 12-05-2017, 10:18 PM
Replies: 12
Views: 709
Posted By waterboy2110
Thatís the one Iím talking about.

Thatís the one Iím talking about.
Forum: RV-12 12-05-2017, 09:58 PM
Replies: 12
Views: 709
Posted By waterboy2110
There’s a small screw that you remove from the...

There’s a small screw that you remove from the balance tube (the tube that connects the two intake manifolds) It has barbs on the port and is closer to the left side. That’s what it looks like from...
Forum: RV-12 12-05-2017, 08:54 PM
Replies: 12
Views: 709
Posted By waterboy2110
Has this engine ran yet? Connecting throttle...

Has this engine ran yet? Connecting throttle cables implies it hasnít. It looks like the screw you remove to tap into the balance tube for the MAP sensor.
Forum: RV-12 12-05-2017, 02:28 PM
Replies: 6
Views: 1,201
Posted By waterboy2110
Thanks Scott. I was tempted to ask out of band...

Thanks Scott. I was tempted to ask out of band but felt the info might help others. FWIW Rotax does show the O ring on the flange when using their trays.
Forum: RV-12 12-05-2017, 01:26 PM
Replies: 96
Views: 23,951
Posted By waterboy2110
It appears the original fork is failing under...

It appears the original fork is failing under normal use. You canít buy the old fork any longer AFAIK. So no. Itís not the same.
Forum: RV-12 12-05-2017, 11:24 AM
Replies: 6
Views: 1,201
Posted By waterboy2110
The Drip Tray for the Rans looks to be the Rotax...

The Drip Tray for the Rans looks to be the Rotax drip tray as seen in the parts manual and here (https://www.cps-parts.com/catalog/rtxpages/914manifold.php) at CPS. Given the way Vans has you...
Forum: RV-12 12-02-2017, 08:55 PM
Replies: 87
Views: 9,023
Posted By waterboy2110
Thanks Scott - Dean was the guy at lockwood....

Thanks Scott - Dean was the guy at lockwood. That's all I know about him.
Forum: RV-12 12-02-2017, 06:37 PM
Replies: 87
Views: 9,023
Posted By waterboy2110
Hi Andrew - max RPM was 5098. I've posted the...

Hi Andrew - max RPM was 5098. I've posted the graph on the blog. I have read that document. Thanks for asking for this data!
Forum: RV-12 12-02-2017, 06:20 PM
Replies: 87
Views: 9,023
Posted By waterboy2110
Scott - Thanks for the reply. I certainly...

Scott - Thanks for the reply. I certainly appreciate your input and insight even with the standard "my opinion" disclaimer.

To be clear -
I called Vans, they said call Lockwood, Lockwood said fill...
Forum: RV-12 12-02-2017, 06:06 PM
Replies: 87
Views: 9,023
Posted By waterboy2110
The first engine was a bit smoother throughout...

The first engine was a bit smoother throughout the range (as I recall -it's been 6 months). Myself and my partner (Rotax representative for United Emirates for many years) are very familiar with carb...
Forum: RV-12 12-02-2017, 10:42 AM
Replies: 87
Views: 9,023
Posted By waterboy2110
When I went to pick up the engine Bryan and...

When I went to pick up the engine Bryan and Ronnie were getting ready to teach a class. Ronnie made the statement that since the quality of the fuel was no longer in question then the shroud or the...
Forum: RV-12 12-02-2017, 10:14 AM
Replies: 87
Views: 9,023
Posted By waterboy2110
Cool, I'm out at Byron every week for fuel. Let's...

Cool, I'm out at Byron every week for fuel. Let's hook up.
Forum: RV-12 12-02-2017, 10:13 AM
Replies: 87
Views: 9,023
Posted By waterboy2110
The engine can be repaired. If Rotax steps up...

The engine can be repaired. If Rotax steps up with warranty they get all parts they are willing to replace up to and including the entire engine. I was led to believe they would replace the engine....
Forum: RV-12 12-02-2017, 10:07 AM
Replies: 87
Views: 9,023
Posted By waterboy2110
I would absolutely remove that shroud. Vans...

I would absolutely remove that shroud. Vans states after a year of testing they've determined it didn't make a difference. If it didn't make a difference it wasn't needed in the first place. The folk...
Forum: RV-12 12-01-2017, 11:06 PM
Replies: 87
Views: 9,023
Posted By waterboy2110
I wouldn't say Rotax isn't serviceable, the are...

I wouldn't say Rotax isn't serviceable, the are pretty simple engines sans the gear box. This engine made major metal and the only way to return it to service is to completely go through it. It took...
Forum: RV-12 12-01-2017, 10:51 PM
Replies: 87
Views: 9,023
Posted By waterboy2110
Yea - 912ULS

Yea - 912ULS
Forum: RV-12 12-01-2017, 10:47 PM
Replies: 87
Views: 9,023
Posted By waterboy2110
Yea - Harley's have solid big ends - but they're...

Yea - Harley's have solid big ends - but they're serviceable.

I'm sure I could have rebuilt the engine for maybe $5k less than new but I would not have been comfortable with it. Besides, if Rotax...
Forum: RV-12 12-01-2017, 10:11 PM
Replies: 87
Views: 9,023
Posted By waterboy2110
Hi Ron, The crank in these engines are pressed...

Hi Ron,

The crank in these engines are pressed assembled around each big end rod that isn't split. There's no way to confirm that the crank is airworthy. CPS said they split the case and the cam was...
Forum: RV-12 12-01-2017, 09:32 PM
Replies: 87
Views: 9,023
Posted By waterboy2110
Rotax Piston Meltdown

As Promised - here's the thread.
Hope to keep it as objective as possible.
At 47 hours on a 103F day the #2 piston melted down. Temps from the EFIS showed engine running warm at 116 Celsius. Rotax...
Forum: RV-12 12-01-2017, 03:31 PM
Replies: 14
Views: 1,821
Posted By waterboy2110
Piston Meltdown. Detonation is not covered under...

Piston Meltdown. Detonation is not covered under the warranty. Seems Rotax has seen enough of this to exempt it from coverage.

Rotax immediately concluded bad gas (without any evidence). Once that...
Forum: RV-12 11-30-2017, 08:41 PM
Replies: 14
Views: 1,821
Posted By waterboy2110
I first heard of Ron's build while researching...

I first heard of Ron's build while researching engines after the Rotax took a dump at 47 hours. It would have cost me a bit more than just replacing the Rotax at $19k to get the cowl and other FWF...
Forum: RV-12 11-27-2017, 08:50 PM
Replies: 41
Views: 4,163
Posted By waterboy2110
Iíll start a new thread for the piston. Folks,...

Iíll start a new thread for the piston.

Folks, I was a proud advocate of hauling MoGas to the airport. Did so for nearly 250 gallons. My incident caused me to assess the risks involved- thatís...
Forum: RV-12 11-26-2017, 11:28 PM
Replies: 41
Views: 4,163
Posted By waterboy2110
That filter is 0.05 inches - not...

That filter is 0.05 inches - not microns.
http://www.universalfilters.com/images_mesh/chart_conv.jpg
Forum: RV-12 11-26-2017, 07:39 PM
Replies: 41
Views: 4,163
Posted By waterboy2110
MoGas is filtered to 30 microns at the pump...

MoGas is filtered to 30 microns at the pump provided the distributor maintains their filters. AvGas is filtered at 10 microns - always. Your filter is good for 127 microns per the manufacture.
Forum: RV-12 11-25-2017, 09:41 PM
Replies: 41
Views: 4,163
Posted By waterboy2110
Ron, I'm right next door in the Burg. To keep in...

Ron, I'm right next door in the Burg. To keep in the spirit of this thread - it's your choice to run AutoFuel. You decide if all the extra handling, formula changes and lack of quality control is...
Forum: RV General Discussion/News 11-25-2017, 01:52 PM
Replies: 0
Views: 188
Posted By waterboy2110
Dynamic Prop Balancing in NorCal

I bought the DynaVib kit to track down a vibration in my second engine that wasn't there in the first one. Anyone within a couple hundred miles of KCCR that is interested in balancing their prop - PM...
Forum: RV-12 11-24-2017, 11:44 PM
Replies: 41
Views: 4,163
Posted By waterboy2110
The difference between AvGas and MoGas is about...

The difference between AvGas and MoGas is about $0.50 / gallon here is CA. Takes a lot of fifty cents to cover a twenty thousand dollar engine. Just sayin.
Forum: RV-12 11-24-2017, 11:40 PM
Replies: 41
Views: 4,163
Posted By waterboy2110
Well Scott - I'd be happy to discuss it. I've...

Well Scott - I'd be happy to discuss it. I've spoke to several folks at Vans and the black hole that is Rotax support is what it is.

The questions I would have expected to be asked never came up. At...
Forum: RV-12 11-24-2017, 10:02 PM
Replies: 41
Views: 4,163
Posted By waterboy2110
I've kept it on the down low hoping Rotax would...

I've kept it on the down low hoping Rotax would come through with the warranty but that's not looking too promising.

It was a warm day, EFIS data says the engine was within it's operating...
Forum: RV-12 11-24-2017, 09:36 PM
Replies: 41
Views: 4,163
Posted By waterboy2110
Down right scary what you folks are doing to save...

Down right scary what you folks are doing to save a few cents on fuel.
Just saying...
I started out hauling fuel around until certified 91 UL melted a piston. It's just not worth the risk to the...
Forum: RV-12 11-15-2017, 08:01 PM
Replies: 1
Views: 764
Posted By waterboy2110
The switches are mounted to a circuit board which...

The switches are mounted to a circuit board which I assume provides the power for the LEDs. The board interfaces with the central wiring hub which can be seen in the schematic that youíll find at...
Forum: RV-12 11-13-2017, 09:28 PM
Replies: 5
Views: 1,090
Posted By waterboy2110
Happy to come by anywhere in NORCAL if you...

Happy to come by anywhere in NORCAL if you feeling it will help.
Forum: RV-12 11-05-2017, 04:53 PM
Replies: 2
Views: 1,040
Posted By waterboy2110
Replacement of oil filter - SB-912-071UL

May only be a small number of folks affected - best to check:

oil filters part no. 825016 sold as a spare part during the period of June 8th, 2017 to
October 31st, 2017 with a production date code...
Forum: RV-12 10-25-2017, 08:05 PM
Replies: 16
Views: 2,184
Posted By waterboy2110
I bought the dual gages from spruce. When they...

I bought the dual gages from spruce. When they arrived one was slightly off of zero. I figured the error would be linear and syncíd with the error.
Later a buddy brought his carb sync box over and...
Forum: RV-12 10-19-2017, 09:04 AM
Replies: 5
Views: 1,259
Posted By waterboy2110
Thanks - I had intended to have a look but put it...

Thanks - I had intended to have a look but put it off because I'll be purging the oil system in a couple days and will pull the covers then. Perhaps I'll have a look today.
Forum: RV-12 10-18-2017, 10:34 AM
Replies: 5
Views: 1,259
Posted By waterboy2110
Yes I have one of the affected engines. Haven't...

Yes I have one of the affected engines. Haven't even had a chance to start it yet and got a call letting me know we need to take it apart.

Beyond disappointed with Rotax, their US support and the...
Forum: RV-12 10-12-2017, 03:30 PM
Replies: 0
Views: 634
Posted By waterboy2110
SB-912-070UL Push rod replacement

An error in manufacturing necessitates replacement of affected pushrods.

Inspection and/or replacement of the valve push-rod assy., rockerarmleftandrockerarmrightforROTAXģ EngineType

From S/N 6...
Forum: RV-12 10-03-2017, 10:39 AM
Replies: 5
Views: 1,171
Posted By waterboy2110
Saw up some scrap aluminum with the desired hole...

Saw up some scrap aluminum with the desired hole size. You do have some scrap laying around right ;)
Forum: RV-12 09-24-2017, 10:40 AM
Replies: 12
Views: 1,890
Posted By waterboy2110
Tom - so the return line (I assume supplied by...

Tom - so the return line (I assume supplied by your group for the kit) does have some "restriction" included in the design? If so, how does it compare to the flow rate of the restrictor that is...
Forum: RV-12 09-21-2017, 12:52 AM
Replies: 23
Views: 3,376
Posted By waterboy2110
Don't look past the restrictor that was removed...

Don't look past the restrictor that was removed from the return line. I've been told this solved several rough running engine problems. Rotax has it in there for a reason.
Forum: RV-12 09-02-2017, 07:23 PM
Replies: 4
Views: 1,351
Posted By waterboy2110
You can check the crankshaft distortion while...

You can check the crankshaft distortion while it's in the plane but there's really no access to the back of the engine while mounted. I'm told it's rare that a prop strike will twist the crank where...
Forum: RV-12 08-31-2017, 09:50 AM
Replies: 96
Views: 23,951
Posted By waterboy2110
If you're going down the die pen road I would...

If you're going down the die pen road I would recommend removing any paint on the fork.
Forum: RV-12 08-29-2017, 11:26 PM
Replies: 96
Views: 23,951
Posted By waterboy2110
The stronger nose fork is $240. I'd estimate that...

The stronger nose fork is $240. I'd estimate that this accident is going to come in at a minimum of $4000 providing the engine is OK (it should be). That's cheap insurance if you're using craggy...
Forum: RV-12 08-29-2017, 09:44 AM
Replies: 96
Views: 23,951
Posted By waterboy2110
That's simply not true. Airworthiness Directives...

That's simply not true. Airworthiness Directives and Service Bulletins are derived from observations and failures in the field. When warranted through objective data, changes are incorporated into...
Forum: RV-12 08-29-2017, 12:07 AM
Replies: 96
Views: 23,951
Posted By waterboy2110
I could name several AD's where only a couple...

I could name several AD's where only a couple planes in the fleet showed a specific problem. That's how it works in the certificated world. We fix them all. Making a statement that most are OK...
Forum: RV-12 08-28-2017, 10:53 PM
Replies: 96
Views: 23,951
Posted By waterboy2110
In all circumstances anytime the plane undergoes...

In all circumstances anytime the plane undergoes stress beyond what would be normal operation, inspection needs to be performed.

I do realize that this thread began with "nothing abnormal" however...
Forum: RV-12 08-26-2017, 07:21 PM
Replies: 12
Views: 2,275
Posted By waterboy2110
Don't install the cooling shroud if it comes with...

Don't install the cooling shroud if it comes with the kit. It's not needed and it starves #2 cylinder for air until the plenum is fully pressurized while flying.
Forum: RV-12 08-24-2017, 05:26 PM
Replies: 16
Views: 3,236
Posted By waterboy2110
Unless you're going with dual displays - consider...

Unless you're going with dual displays - consider putting the panel knobs in after inspection and install them on the right panel. The space in the center stack is prime real estate and those knobs...
Forum: RV-12 08-24-2017, 05:14 PM
Replies: 14
Views: 3,074
Posted By waterboy2110
I would agree with pretty much everything FAA...

I would agree with pretty much everything FAA Inspector says in his comment. There are many down sides to this little engine.
Forum: RV-12 08-13-2017, 12:26 PM
Replies: 13
Views: 5,771
Posted By waterboy2110
There is definitely an uneven cooling with this...

There is definitely an uneven cooling with this plenum design. The design itself is questionable in that it places the #2 cylinder in a corner away from the airflow - it is clear that the #2 cylinder...
Forum: RV-12 08-08-2017, 12:05 AM
Replies: 16
Views: 1,972
Posted By waterboy2110
I use the ones Vans sells. I think they are...

I use the ones Vans sells. I think they are great. They did come off once before I learned to not put too much pressure on the bottom of the pedal.
Forum: RV-12 06-30-2017, 11:09 PM
Replies: 17
Views: 2,308
Posted By waterboy2110
I put the wings on for the first start. After...

I put the wings on for the first start. After that I ran it several times without the wings (too much trouble putting them on and off). It's a non issue. It's not going to rotate or vibrate or go...
Forum: RV-12 06-27-2017, 09:15 AM
Replies: 14
Views: 1,501
Posted By waterboy2110
built mine in a one car garage. Wings and tail...

built mine in a one car garage. Wings and tail feathers lived in the house for more than a year. Lot's of stuff hanging from the ceiling. it was tight but it can be done.
Forum: RV-12 06-19-2017, 10:42 PM
Replies: 1
Views: 780
Posted By waterboy2110
Fuselage Stand - NorCal - Free

If anyone is interested in this stand let me know. In about a week or so I'm going to saw it up for scrap. It worked well for me until I had it on the...
Forum: RV-12 06-14-2017, 12:58 AM
Replies: 16
Views: 2,942
Posted By waterboy2110
If you're going to try to use Justin give him a...

If you're going to try to use Justin give him a call. Seemed the FSDO's I talked to want a lot of lead time.

Richard D in SAC FSDO will do your plane if you move it to Rio Vista but you'll have to...
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