Cox Engines Forum
You are not logged in! Please login or register! Guests are limited to posting in the "General Questions (Guest Posting Allowed)" section only. Becoming a member is fast, easy and FREE!


Log in

I forgot my password

Search
 
 

Display results as :
 


Rechercher Advanced Search

Latest topics
» Looking for a New In Box PT-19 from the 80s-90s
by kaylejwm Today at 2:04 pm

» GSCB meet this Sunday
by Ken Cook Today at 1:21 pm

» Wen-Mac slotted glowhead
by roddie Today at 12:44 pm

» Recent engine acquisitions
by 1/2A Nut Today at 12:39 pm

» Happy Thanksgiving Friends
by Admin Today at 12:14 pm

» 1/2A Non-Contest Control Line Gathering
by roddie Today at 11:23 am

» The Breezy Hill Flyers "Black Fly-Day" Event !!!
by fit90 Today at 8:53 am

» Submarine ARA San Juan Lost in the sea ....
by akjgardner Today at 8:41 am

» Drill Press Question
by getback Today at 8:10 am

» *** Double SIGH ***
by Kim Today at 5:15 am

Cox Engine of The Month
November-2017
MauricioB's

"Cox Tee Dee .010"



PAST WINNERS
Speed Contest 2018
CEF Traveling Engine

Gallery


Win This Engine!
The Traveling Prop
World of Aviation

Babe Bee Help

View previous topic View next topic Go down

Thinking Babe Bee Help

Post  akjgardner on Mon Jul 03, 2017 3:59 pm

I put a babe bee on my cardbord wing Stunt man and every day for the past 3 or 4 iv'e been running a few tanks in it getting ready for the boy to come home so we could fly it. It was one of my best runners, Well last night I went out to run it. It ran strong for the 1st tank and then after that it acts like its flooded. I tried a new glow plug and batteries in my driver. No matter what I do It wont start. It pops and fires weak for a few rotations spitting out fuel but won't start.I'm guessing a broken reed or maybee debris under it. Any help would bee appreciated. Thanks.
avatar
akjgardner
Platinum Member
Platinum Member

Posts : 750
Join date : 2014-12-28
Age : 58
Location : Milan Indiana

View user profile

Back to top Go down

Thinking Re: Babe Bee Help

Post  Ken Cook on Mon Jul 03, 2017 4:04 pm

I've had little seeds get sucked into the venturi.They become lodged on the backside of the reed and do exactly what your explaining. One day fine, the next day in the toilet. Check your reed for breakage, contamination, etc.
avatar
Ken Cook
Diamond Member
Diamond Member

Posts : 2818
Join date : 2012-03-27
Location : pennsylvania

View user profile

Back to top Go down

Thinking Re: Babe Bee Help

Post  akjgardner on Mon Jul 03, 2017 4:10 pm

Thanks for the Quick response Ken, I had a hunch that might bee the case but though I'd ask beefore I took it apart.
avatar
akjgardner
Platinum Member
Platinum Member

Posts : 750
Join date : 2014-12-28
Age : 58
Location : Milan Indiana

View user profile

Back to top Go down

Thinking Re: Babe Bee Help

Post  roddie on Mon Jul 03, 2017 5:20 pm

Oh how I feel your pain Joe.. Is it an old Babe Bee with a copper/star-shaped reed? If it's damaged.. I have some spare ones that I could send you.. if don't have any. The copper-reed is fragile.. (.001" thick..) so you have to handle it with care.

When you take it apart.. if the reed looks ok (not creased or broken) check to see if it's "stuck" to the seat. This can happen if you haven't run the engine in a while. Remove the circlip/retainer and blow-through the venturi to see if the reed falls out. Do this over a bowl.. or something to catch the reed.. so you don't lose it. If it's stuck, try soaking the tank-bowl in a small container of solvent or glow-fuel overnight.. then try to GENTLY lift the reed using a sewing-pin or needle. Be CAREFUL not to bend/crease it.. or scratch the seat. Soak it some more if it's still stuck. Once you free the reed.. swab the "seat" with a Q-tip soaked with solvent/glow-fuel.

The copper-reed is best handled by wetting your index finger with saliva and touching it. This will usually transfer it to your finger. What "I've" done to clean my copper reeds.. is to face two small wood-blocks with 600-grit sandpaper.. place the reed between the two.. and radially twist the blocks ONCE or TWICE.. then inspect. This is usually enough to remove any dried-fuel residue.

I recommend good lighting.. and using a magnifying-glass.

While the tank is off.. check/replace the venturi-gasket. Also check the fuel pick-up and its position in the tank. If it's kinked or looks cracked.. replace it.

There's lot's of other variables with Cox "tanked-engines".. but if yours hasn't seen many rebuilds.. you shouldn't have to worry about the more in-depth issues that can be addressed.

Good luck Joe.. I hope you get it running back smoothly again.
avatar
roddie
Top Poster
Top Poster

Posts : 5451
Join date : 2013-07-17
Age : 57
Location : N. Smithfield, Rhode Island

View user profile http://www.stilburnin.com

Back to top Go down

Thinking Re: Babe Bee Help

Post  akjgardner on Mon Jul 03, 2017 5:40 pm

Thanks for the offer Roddie but when I started back into this cox engine thing again I bought a bunch of spare parts from Bernie and Matt . It was just weird how one day it was running great and then Not.Probably going to tear it down tonight.Thanks again for the help
avatar
akjgardner
Platinum Member
Platinum Member

Posts : 750
Join date : 2014-12-28
Age : 58
Location : Milan Indiana

View user profile

Back to top Go down

Thinking Re: Babe Bee Help

Post  roddie on Mon Jul 03, 2017 6:18 pm

akjgardner wrote:Thanks for the offer Roddie but when I started back into this cox engine thing again I bought a bunch of spare parts from Bernie and Matt . It was just weird how one day it was running great and then Not.Probably going to tear it down tonight.Thanks again for the help

Glad that you have spare parts.. you can NEVER have enough of them! Best of luck Joe!
avatar
roddie
Top Poster
Top Poster

Posts : 5451
Join date : 2013-07-17
Age : 57
Location : N. Smithfield, Rhode Island

View user profile http://www.stilburnin.com

Back to top Go down

Thinking you're not going to beleive what I found

Post  akjgardner on Mon Jul 03, 2017 7:23 pm

OK, Im a little hesitant to post this cuz your all going to think I'm smoking crack, When I took the tank off I noticed a bunch of debris in it, I thought what in the world is that. It looked like congealed fuel of some sort or curled up plastic. When I took the tank off the engine and looked to see what was stuck in the reed valve , I was shocked to see the retainer in place but no reed.So the only thing I can think of is that the reed was very old and on a power stroke it blew the reed back through the hole.I put a new mylar reed in it and it started right up and runs like a scalded dog. Go figure ?


Last edited by akjgardner on Tue Jul 04, 2017 5:26 am; edited 1 time in total
avatar
akjgardner
Platinum Member
Platinum Member

Posts : 750
Join date : 2014-12-28
Age : 58
Location : Milan Indiana

View user profile

Back to top Go down

Thinking Re: Babe Bee Help

Post  NEW222 on Mon Jul 03, 2017 11:12 pm

Glad you have possibly figured it out. Now, if I may ask. Was it originally a copper star shaped reed held in place with the metal circlip? If so, I see you make mention of using a mylar replacement. If so, which shape and or design reed did you use, as i have one here that sounds similar to yours. Thank you for your time.
avatar
NEW222
Platinum Member
Platinum Member

Posts : 1094
Join date : 2011-08-13
Age : 39
Location : oakbank, mb

View user profile

Back to top Go down

Thinking Re: Babe Bee Help

Post  akjgardner on Tue Jul 04, 2017 9:03 am

I"m not sure what the original reed was, but from the debris I found in the tank , I'm guessing it was mylar or maybe a home made jobie. the tank is different than any other tank that I have. The backplate has sort of a nickel color.
avatar
akjgardner
Platinum Member
Platinum Member

Posts : 750
Join date : 2014-12-28
Age : 58
Location : Milan Indiana

View user profile

Back to top Go down

Thinking Re: Babe Bee Help

Post  roddie on Tue Jul 04, 2017 11:23 am

Glad you got the engine running Joe! Like a "scalded-dog" pretty much says it all!!!  Thumbs Up   Babe Bee .049   Small Cox Logo
avatar
roddie
Top Poster
Top Poster

Posts : 5451
Join date : 2013-07-17
Age : 57
Location : N. Smithfield, Rhode Island

View user profile http://www.stilburnin.com

Back to top Go down

Thinking Re: Babe Bee Help

Post  Sponsored content


Sponsored content


Back to top Go down

View previous topic View next topic Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum