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Search: Posts Made By: todehnal
Forum: RV-12/RV-12iS 08-25-2021, 11:44 AM
Replies: 61
Views: 8,946
Posted By todehnal
So, did you have any indications that you had a...

So, did you have any indications that you had a cracked engine mount tube, other than the visual inspection?........Tom
Forum: RV-12/RV-12iS 08-24-2021, 10:15 AM
Replies: 61
Views: 8,946
Posted By todehnal
I was very careful in positioning my springs and...

I was very careful in positioning my springs and have them installed as pictured. Also, I appreciate the prop balance suggestion and plan to do that soon as well.
Forum: RV-12/RV-12iS 08-24-2021, 05:27 AM
Replies: 61
Views: 8,946
Posted By todehnal
I installed the throttle spring guide plates that...

I installed the throttle spring guide plates that Van designed. They really do work well and do add a bit of tension to the throttles. I was glad to see that the bulletin had good pics. It would...
Forum: RV-12/RV-12iS 08-21-2021, 07:04 AM
Replies: 61
Views: 8,946
Posted By todehnal
Well, I'm sure glad that I sent my carbs back to...

Well, I'm sure glad that I sent my carbs back to Lockwood. They really stepped up to the challenge. They first installed my carbs on their test engine and it ran like KRAP. Hurray, they have seen...
Forum: RV-12/RV-12iS 08-14-2021, 10:43 AM
Replies: 61
Views: 8,946
Posted By todehnal
Hi Tony. Well that sure adds a new wrinkle to...

Hi Tony. Well that sure adds a new wrinkle to the problem. As you know, our RV-12s have a tractor installation. If your pics is correct, then my analysis is totally wrong. I consider the left...
Forum: RV-12/RV-12iS 08-14-2021, 09:45 AM
Replies: 61
Views: 8,946
Posted By todehnal
Finnaly!! Found The Problem

It's been a real struggle and I thought I found the problem. I posted but then deleted the post as it was premature and Tony pointed out the error in my logic
Sorry for the mis information

Maybe...
Forum: RV-12/RV-12iS 08-12-2021, 10:51 AM
Replies: 61
Views: 8,946
Posted By todehnal
Hey Bruce, thanks for your experience. I did...

Hey Bruce, thanks for your experience. I did recently service my air filters, but I used the official K & N kit following their instructions to the letter. I did have the over rich problem before...
Forum: RV-12/RV-12iS 08-11-2021, 05:43 AM
Replies: 61
Views: 8,946
Posted By todehnal
Thanks guys. I did pull the dome tops off of...

Thanks guys. I did pull the dome tops off of both carbs to check the circlip position. Both carbs had good circlips and they were in #3 position, which is the proper position. I also checked the...
Forum: RV-12/RV-12iS 08-10-2021, 12:34 PM
Replies: 61
Views: 8,946
Posted By todehnal
Yeah Jim, your Dad's Amish threat sounds like a...

Yeah Jim, your Dad's Amish threat sounds like a terrific attention getter for any unfavorable behavior.

So, I seem to be down to 2 issues with my Rotax, and they are more than likely related. I...
Forum: RV-12/RV-12iS 08-09-2021, 12:51 PM
Replies: 61
Views: 8,946
Posted By todehnal
Wink You may be right Joe. It is just bugging me for...

You may be right Joe. It is just bugging me for 2 main reasons. 1, at my normal 5300 RPM cruise, if I lower the nose just a little to reduce altitude the Skyview indication moved into the yellow...
Forum: RV-12/RV-12iS 08-09-2021, 12:27 PM
Replies: 61
Views: 8,946
Posted By todehnal
I was buying 91 non ethanol fuel locally at a...

I was buying 91 non ethanol fuel locally at a Casey's and received a old batch of gas. What a foul odor. I guess the demand was not that great. I buy my 93 from a distributer that caters to an...
Forum: RV-12/RV-12iS 08-09-2021, 05:11 AM
Replies: 61
Views: 8,946
Posted By todehnal
Thanks Brad, but I exclusively use premium 93...

Thanks Brad, but I exclusively use premium 93 octane alcohol free auto fuel. It is difficult to find in our area which requires me to make a 100 mile round trip run with my 55 gal barrel every month...
Forum: RV-12/RV-12iS 08-08-2021, 09:59 AM
Replies: 61
Views: 8,946
Posted By todehnal
I really appreciate the comments from Jim, Mich...

I really appreciate the comments from Jim, Mich and Vic. I now have both the torsion and a light pull springs on the carb throttle levers which overcomes any play in the cable movement resulting in...
Forum: RV-12/RV-12iS 08-07-2021, 12:43 PM
Replies: 61
Views: 8,946
Posted By todehnal
I may have been premature in saying that I didn't...

I may have been premature in saying that I didn't solve anything by fixing the intake leaks at the drip tray socket connections. It did make a difference in the carb balance effect, and the idle. ...
Forum: RV-12/RV-12iS 08-06-2021, 02:53 PM
Replies: 61
Views: 8,946
Posted By todehnal
Thanks Jim, Good stuff........Tom

Thanks Jim, Good stuff........Tom
Forum: RV-12/RV-12iS 08-06-2021, 04:52 AM
Replies: 61
Views: 8,946
Posted By todehnal
Thanks Jim for the photos and input. Yesterdays...

Thanks Jim for the photos and input. Yesterdays short flight was on an 80 degree day with CHTs around 190 and EGTs about 1340 L and 1440 R. I think the fouled plugs come later, after the lean...
Forum: RV-12/RV-12iS 08-05-2021, 03:04 PM
Replies: 61
Views: 8,946
Posted By todehnal
Hi Scott, Thanks for your research and response. ...

Hi Scott, Thanks for your research and response. I am fighting several issues. The most concerning is the high EGT on the right (1,3) bank. It is running about 100 degrees hotter than the left and...
Forum: RV-12/RV-12iS 08-05-2021, 10:53 AM
Replies: 61
Views: 8,946
Posted By todehnal
Like you david, I don't think that it would make...

Like you david, I don't think that it would make any difference, but that is the that I had them, and will do them this time as well....Tom
Forum: RV-12/RV-12iS 08-05-2021, 04:40 AM
Replies: 61
Views: 8,946
Posted By todehnal
Jim, I will post the results. One other symtom...

Jim, I will post the results. One other symtom that I didn't mention was that I have higher than normal EGT reading. In fact, occationally I have seen them up in the yellow zone, intermittantly and...
Forum: RV-12/RV-12iS 08-05-2021, 04:31 AM
Replies: 61
Views: 8,946
Posted By todehnal
I agree that this may not have been the best drip...

I agree that this may not have been the best drip tray mounting choice. Some Rotax powered aircraft do mount their drip trays without effecting the carb seals. I'm hoping that the added gasket,...
Forum: RV-12/RV-12iS 08-04-2021, 03:22 PM
Replies: 61
Views: 8,946
Posted By todehnal
No problem Walt, That is if you can keep from...

No problem Walt, That is if you can keep from laughing at this.
I started with a half gallon jar with a wide mouth metal lid. I drilled 2 holes just under the size of tubless tire rubber valve stems...
Forum: RV-12/RV-12iS 08-04-2021, 02:17 PM
Replies: 61
Views: 8,946
Posted By todehnal
Scott, thanks so much for persuing the best fix...

Scott, thanks so much for persuing the best fix for this leak. The smoke test clearly showed the leak to be between the drip tray, and the carb socket. I would have thought that the integral ring...
Forum: RV-12/RV-12iS 08-04-2021, 12:06 PM
Replies: 61
Views: 8,946
Posted By todehnal
Found the Cause and now Need the Fix

I've been fighting vibration, short spark plug life and very dirty oil.
I got a tip from the Rotax booth at Oshkosh and he convinced me that I had an intake leak. So, when I got home, I built a...
Showing results 1 to 23 of 23

 
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