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Search: Posts Made By: Jolly
Forum: RV-12/RV-12iS 03-15-2019, 08:03 PM
Replies: 8
Views: 547
Posted By Jolly
So long as there is at least 1/4" of space the...

So long as there is at least 1/4" of space the spring won't hurt the hose. I would however put a heat shield on the hose if it is in close proximity of the exhaust pipe. You can take a 4" - 6" piece...
Forum: RV-12/RV-12iS 03-15-2019, 07:49 PM
Replies: 20
Views: 2,180
Posted By Jolly
Common vibration causes and fixes....

Common vibration causes and fixes.

https://www.rotax-owner.com/en/rotax-blog/item/57-vibration-help
Forum: RV-12/RV-12iS 03-05-2019, 09:46 AM
Replies: 1
Views: 921
Posted By Jolly
This class is next month. It's a good class if...

This class is next month. It's a good class if you have never been. Lots of hands on for doing and understanding an annual or maint. issues.
Forum: RV-12/RV-12iS 02-25-2019, 10:50 AM
Replies: 94
Views: 10,836
Posted By Jolly
The new Rotax SI that refers to new part numbers...

The new Rotax SI that refers to new part numbers and is just that for some parts. The floats got a new part number, but are the same floats. There is no swapping out. Some of the other parts just had...
Forum: RV-12/RV-12iS 02-01-2019, 12:51 PM
Replies: 1
Views: 921
Posted By Jolly
Rotax Service and Inspection Class April 20 - 21, 2019

I thought some would like to know.
Copy & paste from Rotax-Owner...
Forum: RV-12/RV-12iS 11-18-2018, 07:30 AM
Replies: 8
Views: 1,237
Posted By Jolly
The old filter that was replaced this year...

The old filter that was replaced this year 825-012 had a check valve inside and could not be pre-filled. This newer filter 825-016 does not have the check valve and can now be pre-filled and it...
Forum: RV-12/RV-12iS 09-25-2018, 01:45 PM
Replies: 1
Views: 830
Posted By Jolly
Rotax class directions

Copy and paste from Rotax Owner,

Rotax Oct. 6th & 7th Class Directions

Fly into Tucson International Airport (TIA) or fly your own plane into Ryan Airfield. Classes are Saturday and Sunday. All...
Forum: RV-12/RV-12iS 09-06-2018, 08:20 AM
Replies: 1
Views: 830
Posted By Jolly
Rotax Service Class Oct. 6 & 7, 2018 in Tucson, AZ

Copy and paste from Rotax Owner:

4 weeks to go and seats are in short supply. Good hands on for completing and understanding annuals. Make sure you tell CPS this is the Tucson, AZ...
Forum: RV-12/RV-12iS 08-02-2018, 01:14 PM
Replies: 1
Views: 995
Posted By Jolly
Time is growing short and seats are getting on...

Time is growing short and seats are getting on short supply. Good hands on for completing and understanding annuals. Make sure you tell CPS this is the Tucson, AZ...
Forum: RV-12/RV-12iS 08-02-2018, 01:12 PM
Replies: 1
Views: 995
Posted By Jolly
Rotax Service Class Oct. 6 & 7, 2018 in Tucson, AZ

Ask to post this off of Rotax Owner forum. Copied and paste"

Note*** When you call California Power Systems to sign up make sure you tell them it is for the Tucson, AZ class in October so it isn't...
Forum: RV-12/RV-12iS 05-08-2018, 11:21 AM
Replies: 6
Views: 1,666
Posted By Jolly
During warmer summer months seeing 230F - 245F...

During warmer summer months seeing 230F - 245F isn't uncommon or bad. Just normal. 230F is just the bottom of the yellow arch which just means "keep an eye on me" so I don't go into the red. Even if...
Forum: RV-12/RV-12iS 05-02-2018, 07:46 PM
Replies: 11
Views: 2,458
Posted By Jolly
The bolt and nut torques that used to be in the...

The bolt and nut torques that used to be in the Parts manual are all now in the new edition Heavy Maint. manual.
Forum: RV-12/RV-12iS 05-02-2018, 07:43 PM
Replies: 28
Views: 6,247
Posted By Jolly
For hard to find issues like this a good 1,2,3,4...

For hard to find issues like this a good 1,2,3,4 step diagnostics makes things easier and usually cheaper because most issues aren't some exotic problem. Jumping around usually takes much longer to...
Forum: RV-12/RV-12iS 05-02-2018, 07:35 PM
Replies: 55
Views: 21,397
Posted By Jolly
This bracket breaks because of vibration. Putting...

This bracket breaks because of vibration. Putting a thicker bracket on is a
band-aid to the main problem. We need to fix the cause and not the result.
This vibration is usually from poor carb sync,...
Forum: RV-12/RV-12iS 04-05-2018, 01:28 PM
Replies: 56
Views: 16,364
Posted By Jolly
Running at 14.2 is good and even up to 14.6. My...

Running at 14.2 is good and even up to 14.6. My 1800 Honda Goldwing motorcycle runs at 14.2 - 14.4
14.2 is better than some see that are around 13.2 - 13.6 with these newer AGM and LiPo batteries....
Forum: RV-12/RV-12iS 03-28-2018, 11:03 PM
Replies: 11
Views: 1,925
Posted By Jolly
Hi Ric, If it's just a tad fuller than what you...

Hi Ric,
If it's just a tad fuller than what you expected then it isn't a big deal unless it's so full up in the neck it may overflow out the vent tube and that just makes a big mess to clean up, but...
Forum: RV-12/RV-12iS 03-20-2018, 09:32 PM
Replies: 55
Views: 21,397
Posted By Jolly
Hi RFSchaller, These brackets rarely break and...

Hi RFSchaller,

These brackets rarely break and they are mounted on over 50K engines. What causes this is just vibration. Doesn't matter if you can feel it if those brackets are breaking then you...
Forum: RV-12/RV-12iS 03-19-2018, 05:42 PM
Replies: 43
Views: 15,031
Posted By Jolly
Hi John, The things that tend to cause the carbs...

Hi John,

The things that tend to cause the carbs to be rough at idle are heavy floats (they need to be weighed to rule these in or out even if you just did it 10 hours ago). The idle jet is clogged,...
Forum: RV-12/RV-12iS 03-08-2018, 10:07 AM
Replies: 43
Views: 15,031
Posted By Jolly
Have seen two Sensenich 68" 3 blade props on...

Have seen two Sensenich 68" 3 blade props on RV12's about 3 years ago and all is good and the performance was quite good.

The Bing carbs on the 912ULS in fact run leaner in a mid range rpm around...
Forum: RV-12/RV-12iS 02-11-2018, 09:28 AM
Replies: 7
Views: 1,634
Posted By Jolly
CPS oil filter wrench

Bryan at CPS got me to try their new oil filter wrench. It's stainless and makes oil filter removal and install a breeze.
Forum: RV-12/RV-12iS 02-11-2018, 09:18 AM
Replies: 19
Views: 3,182
Posted By Jolly
From my understanding there are 3 places that are...

From my understanding there are 3 places that are common coolant leaks, but for different reasons.

After the 5 year rubber change this seems to happen if the spring clamp on the 17mm coolant hoses...
Forum: RV-12/RV-12iS 01-06-2018, 11:15 AM
Replies: 6
Views: 1,789
Posted By Jolly
Found...

Found this:

http://www.rotax-owner.com/en/rotax-forum/4-general-discussion/6450-torque-table
Forum: RV-12/RV-12iS 12-18-2017, 10:07 AM
Replies: 150
Views: 25,519
Posted By Jolly
Some engine owners may have a combo of these. A...

Some engine owners may have a combo of these. A single one of these doesn't mean it is an absolute detonation issue.
Add a few together and you may be in trouble. In an aircraft engine you usually...
Forum: RV-12/RV-12iS 12-18-2017, 09:56 AM
Replies: 9
Views: 2,299
Posted By Jolly
You need to remember that the manuals are written...

You need to remember that the manuals are written for 3 different engines. The 912UL, 912ULS and the 914. The specs are written with the assumption of a variable or constant speed prop and that you...
Forum: RV-12/RV-12iS 12-17-2017, 03:24 PM
Replies: 150
Views: 25,519
Posted By Jolly
Rotax E-Learning on detonation...

Rotax E-Learning on detonation prevention

http://www.rotax-owner.com/en/videos-topmenu/elearning-videos/201-detonation119
Forum: RV-12/RV-12iS 12-16-2017, 01:15 PM
Replies: 150
Views: 25,519
Posted By Jolly
Evans isn't authorised for the new Rotax heads as...

Evans isn't authorised for the new Rotax heads as spelled out in the Installation manual in section 75-00-00 page 9. Evans carries a 20F- 30F heat penalty due to the fact it is waterless. Water has...
Forum: RV-12/RV-12iS 09-28-2017, 07:47 AM
Replies: 33
Views: 4,967
Posted By Jolly
When I put my new Sensenich on they told me the...

When I put my new Sensenich on they told me the pins were good for the ballpark, but preferred the blades get checked with a protractor to make sure and that they may even need some fine tuning to...
Forum: RV-12/RV-12iS 09-28-2017, 07:44 AM
Replies: 13
Views: 2,717
Posted By Jolly
Rotax wants Hobbs. Hobbs usually records when the...

Rotax wants Hobbs. Hobbs usually records when the oil pressure is 15 psi or higher. The tach depending on how it is set up can be influenced by rpm. Low rpms the tach may turn slower and high rpms it...
Forum: RV-12/RV-12iS 09-28-2017, 07:39 AM
Replies: 81
Views: 16,573
Posted By Jolly
Copy and paste from Rotax Owner forum: "In the...

Copy and paste from Rotax Owner forum:

"In the Installation manual it does say the re-circulation line restrictor is .35mm or .014".

Actually that is a misprint that should have been fixed. The...
Forum: RV-12/RV-12iS 09-16-2017, 10:48 PM
Replies: 18
Views: 3,920
Posted By Jolly
Hi R100rs, Sorry if you took that post as...

Hi R100rs,
Sorry if you took that post as condescending. It was not meant to be.

I was just trying to offer a different opinion based on some real time issues and expertise.
I read post and get...
Forum: RV-12/RV-12iS 09-16-2017, 09:33 AM
Replies: 12
Views: 2,269
Posted By Jolly
The 200 hr. is only an inspection. There is...

The 200 hr. is only an inspection. There is nothing in writing on when to rebuild a carb.
Forum: RV-12/RV-12iS 09-16-2017, 09:31 AM
Replies: 18
Views: 3,920
Posted By Jolly
Hi R100rs, Only a newbie with my RV12. I've been...

Hi R100rs,
Only a newbie with my RV12. I've been using Rotax engines since 1980. 503's in ultralights, 582's in Gyro's and then the 912 in all my other aircraft. Started taking classes about 2 years...
Forum: RV-12/RV-12iS 09-16-2017, 09:25 AM
Replies: 18
Views: 3,920
Posted By Jolly
Hi Jim, You're the second person to accuse me of...

Hi Jim,
You're the second person to accuse me of being Rodger. Sorry, but I live in CA. and when I met him at the Rotax class he lives in AZ.
Forum: RV-12/RV-12iS 09-13-2017, 11:22 AM
Replies: 18
Views: 3,920
Posted By Jolly
It's funny how new people to Rotax have never...

It's funny how new people to Rotax have never studied Rotax history and know nothing about its history or engine and part specs. Knowing about 10 engines isn't like getting info from world use.
Do...
Forum: RV-12/RV-12iS 08-18-2017, 02:18 PM
Replies: 1
Views: 1,213
Posted By Jolly
New Rotax 912UL/ULS & 912iS Service Class

Just saw this come up on the Rotax Owner form. It's another Rotax Service class in Tucson, AZ. I went to the last one and it was good. We did a real annual and there was lots of hands on for...
Forum: RV-12/RV-12iS 07-11-2017, 07:21 AM
Replies: 10
Views: 2,209
Posted By Jolly
Got this from Kodiak. Normally dry black sooty...

Got this from Kodiak.
Normally dry black sooty plugs come from idling and or too wide a gap. Reduce gaps to .025 and either run the engine up at 4K rpm for 5 min. or go fly and when you land do not...
Forum: RV-12/RV-12iS 06-13-2017, 10:24 AM
Replies: 30
Views: 6,275
Posted By Jolly
The stick controls air speed on approach and...

The stick controls air speed on approach and landing and the throttle altitude or glide slope. All these articles say the same. There are hundreds more.
Landing in your chosen idle rpm speed is...
Forum: RV-12/RV-12iS 06-13-2017, 08:24 AM
Replies: 30
Views: 6,275
Posted By Jolly
A mechanical sync is done first and all it does...

A mechanical sync is done first and all it does is get you in the ballpark to do the pneumatic sync. Once done it usually doesn't have to be done again for subsequent syncs unless you remove carbs or...
Forum: RV-12/RV-12iS 06-13-2017, 08:09 AM
Replies: 18
Views: 6,175
Posted By Jolly
Hi Bruce, You can drain the oil tank and then...

Hi Bruce,

You can drain the oil tank and then remove the oil filter and you will not loose any more oil. The reason for this is the oil pump design. It will not allow any significant oil volume...
Forum: RV-12/RV-12iS 06-12-2017, 08:20 PM
Replies: 30
Views: 6,275
Posted By Jolly
Electronic carb sync set ups aren't as good as...

Electronic carb sync set ups aren't as good as analog dial gauges. The electronic carb sync set ups can split a hair, but once you take it off and reconnect the balance tubes all that hair splitting...
Forum: RV-12/RV-12iS 06-12-2017, 07:46 PM
Replies: 18
Views: 6,175
Posted By Jolly
Rotate the prop first to get the tank gurgle....

Rotate the prop first to get the tank gurgle. This pushes the excess oil back to the tank from the crankcase. If you fail to do this you might over fill the tank later and just make a mess all over...
Forum: RV-12/RV-12iS 03-13-2017, 08:17 PM
Replies: 43
Views: 19,709
Posted By Jolly
I went right to the Rotax expert for this...

I went right to the Rotax expert for this question.

You are supposed to check the magnetic oil plug every oil change per Rotax ASB-912-051.
You don't "PURGE" and engine at the oil change, you "VENT"...
Forum: RV-12/RV-12iS 03-07-2017, 02:47 PM
Replies: 14
Views: 5,008
Posted By Jolly
He just did a hose change and carb ice won't...

He just did a hose change and carb ice won't knock down the rpm to 3800. Carb debris will.
Forum: RV-12/RV-12iS 03-07-2017, 01:44 PM
Replies: 34
Views: 19,144
Posted By Jolly
Since I did my cooling mod on the VR that was...

Since I did my cooling mod on the VR that was suggested in the Rotax class my VR temps have not broken 149F. I think it's between 140-149F. I think the VR failure is now a thing in my past.
Forum: RV-12/RV-12iS 03-07-2017, 01:43 PM
Replies: 14
Views: 5,008
Posted By Jolly
Hi jack, Loosen the carb rubber intake screw and...

Hi jack,

Loosen the carb rubber intake screw and push the carb back out of the socket. This allows the carb to be lifted. Pull the bowl off the carb. I have ten bucks you have some debris in the...
Forum: RV-12/RV-12iS 02-17-2017, 07:31 AM
Replies: 86
Views: 30,669
Posted By Jolly
All I did was go to Ace Hardware (it was...

All I did was go to Ace Hardware (it was suggested) and purchased a brass bushing with a hole size the same as my screw. It is twice as long as you need so I cut it in half. This gives you one for...
Forum: RV-12/RV-12iS 02-15-2017, 08:20 PM
Replies: 86
Views: 30,669
Posted By Jolly
Hi Macpara, I just went through the Rotax class...

Hi Macpara,

I just went through the Rotax class in Tucson. There were 4-5 RV12 owners there and 13 of us total. We talked about Van's having the highest VR failure rate of the aircraft Mfg's. I also...
Forum: RV-12/RV-12iS 01-05-2017, 08:18 PM
Replies: 9
Views: 4,130
Posted By Jolly
Hi Ric, I just got this extra info from the Rotax...

Hi Ric,
I just got this extra info from the Rotax website. It has some more details.
Copy and pasted
___________________________________________________________

Tucson, AZ Rotax Service Class...
Forum: RV-12/RV-12iS 01-03-2017, 08:48 PM
Replies: 9
Views: 4,130
Posted By Jolly
Looks like I'm going to be there. Anyone else?

Looks like I'm going to be there. Anyone else?
Forum: RV-12/RV-12iS 12-18-2016, 08:22 AM
Replies: 9
Views: 4,130
Posted By Jolly
Rotax class

Hi Guys,

I watch here a lot, but almost never post, but I thought this might be good.
Just saw this on the Rotax Owner forum. A new service class for Rotax annuals and inspections that is supposed...
Forum: RV-12/RV-12iS 11-07-2016, 06:20 PM
Replies: 15
Views: 5,797
Posted By Jolly
Exhaust wrap

The one picture with wrap on Jetguy's post is over wrapped and this will cause heat retention. The edge of the wrap should be no more than 3/8" over the edge of the last wrap. Rotax owners have been...
Showing results 1 to 51 of 51

 
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