VansAirForceForums  
Home > VansAirForceForums

- POSTING RULES
- Donate yearly (please).
- Advertise in here!

- Today's Posts | Insert Pics


Go Back   VAF Forums > Model Specific > RV-12/RV-12iS
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
  #11  
Old 05-20-2020, 08:48 PM
NinerBikes NinerBikes is offline
 
Join Date: Dec 2018
Location: Granada Hills
Posts: 820
Default

Just was reading this, in another thread.

Rough engine running can be caused by vibration, which can be caused by your carbs not being synched, or the dogs in your gearbox wearing and getting sloppy, or the washers not maintaining proper tension on the clutch.

http://www.vansairforce.com/communit...5&postcount=12
__________________
2020 Dues paid
N72DJ, RV-12, bought flying. A Blessing in disguise. Thank you Double D!
Reply With Quote
  #12  
Old 07-27-2020, 05:47 PM
Tacco Tacco is offline
 
Join Date: Jan 2017
Location: White Salmon, WA
Posts: 173
Default

Quote:
Originally Posted by Piper J3 View Post
Keep in mind that Bing carb floats work just fine - until they don't...
You were right. Even though engine is very low time. Had a “sunk” float. Actually, 7.2 grams on one side, 10.5 on the other. So...running excessively rich, fowling plugs. Old style floats, now replaced with newest part number.
__________________
Steve Morrow
RV-12 N12SM
Builder 121036
White Salmon, WA

2020 Donation Paid
Reply With Quote
  #13  
Old 07-27-2020, 05:57 PM
Tacco Tacco is offline
 
Join Date: Jan 2017
Location: White Salmon, WA
Posts: 173
Default

Quote:
Originally Posted by Piper J3 View Post
Keep in mind that Bing carb floats work just fine - until they don't...
You were right. Even though engine is very low time. Had a “sunk” float. Actually, 7.2 grams on one side, 10.5 on the other. So...running excessively rich, fowling plugs. Old style floats, now replaced with newest part number.
__________________
Steve Morrow
RV-12 N12SM
Builder 121036
White Salmon, WA

2020 Donation Paid
Reply With Quote
  #14  
Old 07-28-2020, 12:41 PM
bobg56 bobg56 is offline
 
Join Date: Nov 2018
Location: Peachtree City, GA
Posts: 121
Default

Ever since I purchased my RV12 I have added 1oz of "Sea Foam" to my 93 octane auto gas per gallon. I use it incase I don't get to fly so the gas doesn't go bad. It states it protects fuel for two years.. I have used it on any vehicle, boat, lawn mower I've ever had, especially the mower which sits unused during winter, it also claims to be an upper cylinder lubricant as well as carbon remover. I took apart my 70 hp outboard motor (2cyl) and it was nearly carbon free, it was 23 years old, just a very light amount on piston heads and I mean very light amount. My 912 ULS starts easily and I never have ignition issues, she runs very smoothly, I have 315 hours on it and of those I have put 130, maybe it could be of help.
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -6. The time now is 04:09 AM.


The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.