"701 airplane is the safest plane in the air. After 2 Rotax 912uls complete failures in 4 years. Thank you Chris Heintz"
Zenith Aircraft Builders and Flyers
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Jerry Griego
- Male
- Socorro, NM
- United States
- Blog Posts (5)
- Discussions (101)
- Events
- Groups
- Photos (8)
- Photo Albums
- Videos
Jerry Griego's Discussions
912ULS muffler
Started Jul 20, 2022 0 Replies 0 Likes
I have a 912ULS stainless steel muffler , for ring mount for zenith 701. The muffler had a weld repair a couple of years ago. The weld repair needs repairing again. The repair is where exhaust tube…Continue
WTB
Started this discussion. Last reply by Bob Simmons May 18, 2022. 1 Reply 0 Likes
Fiberglass tail light and landing lights for Zenith 650Continue
Matco MC-5 Master Cylinders
Started this discussion. Last reply by Mike Holder Jul 22, 2018. 2 Replies 0 Likes
I have 2 never used MC-5 cylinders for sale $75.00 each buyer pays shipping. 1 Y stick for a 650$75.00. Continue
Sold
Started this discussion. Last reply by Rick Gutierrez Aug 13, 2018. 11 Replies 0 Likes
Y stick sold.Continue
Jerry Griego's Page
Latest Activity
"I would like to speak to someone who is flying a 701 with the Viking 90. Rotax 912uls has totally failed me , this is my 2nd Rotax to die."
"looking for some input on vinyl wrap for my 701. getting tired of the silver look."
912ULS muffler
I have a 912ULS stainless steel muffler , for ring mount for zenith 701. The muffler had a weld repair a couple of years ago. The weld repair needs repairing again. The repair is where exhaust tube #4 enters the muffler. A new muffler from zenith is almost $1000.00. I will accept $700 and you pay shipping.See More
"Bolt on 7 gallon fuel tanks for the 701, my wing kit from 12 years ago came with them , does anyone else have them?"
"Rotax 912uls fuel return line to fuel supply before gascolator is causing fuel to come out of only one tank during flight. What can I do?"
"912 ULS . Burns 6 GPH. 14 gal. on board. adding 2 - 10 gal.AUX wing tanks to my 701.anybody have some advice before i cut open the wings."
Profile Information
- Aircraft Model
- STOL CH 701, Zenith CH 650
- Project Status
- Flying
- Building From
- Kit
- Engine installed (or plan to install)
- Rotax 912
- Building Experience
- No Experience
- Flying Experience
- Sport Pilot (or Ultralight)
- Building and Flying Info / Your Profession / Other Background Info
- Electrical Contractor
- Home Airport (ie. KMYJ)
- KONM
Progress from beginning August 2010
Rudder Starter kit built, February 2010
Photos attached will be a record of my progress from beginning in August 2010.
Jerry Griego's Photos
Jerry Griego's Blog
Dual throttle Rotax 912ULS
Posted on March 31, 2019 at 10:36pm 2 Comments 0 Likes
I have a dual throttle setup on my 701 with a Rotax 912ULS This is the kit that zenith provides with two cables. There seems to be a lot of pressure pulling the two throttle arms on the carbs back to full. If I take my hand off the throttle it will advance the RPM greatly. I have to tighten the throttle lock down very hard to stop this action. Rotax says not to change the carb springs. I took the springs off to see if it was a cable issue , but no problem with the cables. I did reattach the…
Continue701 cabin heat install
Posted on June 12, 2014 at 11:35pm 3 Comments 0 Likes
I need help on how to make the mixer lever move smooth. I made several triangle horns to make it work. the whole thing gets stuck open or closed at times
I have spent too many hours on this task which I thought would be easy. HELP
Pictures would be nice.
firewall Boots 701
Posted on January 6, 2014 at 6:34pm 6 Comments 0 Likes
Is there some type of boot for the two threaded rods that control the front nose wheel? Trying to keep engine compartment smells from entering the cabin area.
Liquid cooled Heads for Jabiru engines. I just heard about them. Does anyone have any info of this new cooling system?
Posted on May 21, 2011 at 2:32pm 9 Comments 0 Likes
Liquid cooled Heads for Jabiru engines. I just heard about them. Does anyone have any info of this new cooling system?
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Here is the link to Roger’s “gear check video”. https://youtu.be/eZVIhZGkqwE
Howdy Jerry and thanks for the welcome. Hows the flight training coming? I am a CFI and soon I should have some hours of 701.
Hi Jerry i pulled out my EA -81 to heavy, will be flying off my paddock so i want my plane to be as light as i can get it.I picked up a low time jab at a good price.Do you no any body flying a jab powerd 701 would like to no how it performs.
cheers Phil
Jerry,
#609 is very early and most engines of that time have since had later version heads fitted for better cooling.
Some engines run well for reasonable times and it may be a case for leaving alone.
You need to check what changes had already been done, if its already run 367 hrs the way to check for the scuffed piston skirts is to ground run at around 1800 rpm for 2 mins then shut down, if the prop stops quickly without springback and is stiff to rotate by hand then its a candidate for the cylinder basenuts and hone the barrels job. This is explained better by Roger Lewis on the Jabiru Yahoo group.
In the 701 depending on cowling, cooling of the heads is likely the first issue you will need to get right
The prop I use is 64" x 30" its pictured on my page photos made by Brent Thompson Props
Ralph
Hi Jerry. Not done, but about to finally get the doors on the hanger. Will then move 701 to N29 and put the wings on. Let me know when you (if you) ever get to Magdalena. Best, jfs
Yeah to bad we can't be paid for building!
Sounds like great progress. Which Jan are you going with, the 2200?
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