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
» Feeling a little guilty…
by pkrankow Today at 7:25 am

» Happy Day Ron Cribbs!
by Kim Today at 7:19 am

» "what's in your pocket"?
by rsv1cox Today at 7:16 am

» Happy Birthday Roger Harris!
by getback Today at 6:23 am

» Spitzy parts
by Oldenginerod Today at 4:58 am

» Tach Race 2017- It's a go! March 11-12
by Oldenginerod Yesterday at 11:37 pm

» Testors Bonzo
by Mark Boesen Yesterday at 11:06 pm

» Scratch build BRM - a first
by wha-tah-hey Yesterday at 9:27 pm

» Baby Ringmaster build
by Canso07 Yesterday at 9:13 pm

» Enya SS 25 "Super Sport"
by Ken Cook Yesterday at 8:15 pm

Cox Engine of The Month
February-2017
Mark Boesen's

Twin-Needle Cage Mount Thermal Hopper



PAST WINNERS
CEF Traveling Engine

Tach Race 2017 Updates
Ready for Tach Race 2017?
Profile Scale Reed Speed
Gallery


Win This Engine!
The Traveling Prop

Metal Shavings in My Hyper Viper's Engine

Page 1 of 2 1, 2  Next

View previous topic View next topic Go down

Metal Shavings in My Hyper Viper's Engine

Post  Kim on Thu Feb 16, 2017 7:36 am

I've seen this discussed here and in Mark's .049 Collectors Group in past years, but had my first encounter with metal shavings inside the later releases of Cox engines.

My recent Ohio swap meet run netted a NIB Cox model (to be featured in an 'Assembly/First Flight Thread'), which I started on yesterday.  On a whim, I pulled the back plate of it's engine just to snoop around a bit, and found this sliver of aluminum hanging out in the space below the cylinder.

I was able pull the cylinder and piston from their case, and used an X-Acto knife to trim away the shaving, along with a 'shelf' of thin aluminum on it's opposite side.

I put the thing back together, and ran about half-an-hour of break-in time on it, and it's apparently gonna be a good runner.

So, even if it DOES somewhat violate my 'If it ain't broke, DON'T fix it' policy, it IS a good idea take a look inside these later engines before cranking them up.

Columbo Kim





Last edited by Kim on Sat Feb 18, 2017 6:53 am; edited 2 times in total

Kim
Top Poster
Top Poster

I Support My Forum

Posts : 5350
Join date : 2011-09-06
Location : South East Missouri

View user profile

Back to top Go down

Re: Metal Shavings in My Hyper Viper's Engine

Post  crankbndr on Thu Feb 16, 2017 8:31 am

Speaking of Colombo, I have narrowed down the mystery model a bit by the engine. lol!

crankbndr
Diamond Member
Diamond Member

I Support My Forum

Posts : 1864
Join date : 2011-12-10
Location : Homestead FL

View user profile

Back to top Go down

Re: Metal Shavings in My Hyper Viper's Engine

Post  Kim on Thu Feb 16, 2017 9:24 am

crankbndr wrote:Speaking of Colombo, I have narrowed down the mystery  model a bit by the engine. lol!

And so Lieutenant, based on the evidence at hand, just what is your conclusion...?

Kim
Top Poster
Top Poster

I Support My Forum

Posts : 5350
Join date : 2011-09-06
Location : South East Missouri

View user profile

Back to top Go down

Re: Metal Shavings in My Hyper Viper's Engine

Post  crankbndr on Thu Feb 16, 2017 10:30 am


crankbndr
Diamond Member
Diamond Member

I Support My Forum

Posts : 1864
Join date : 2011-12-10
Location : Homestead FL

View user profile

Back to top Go down

Re: Metal Shavings in My Hyper Viper's Engine

Post  Kim on Thu Feb 16, 2017 10:46 am

WRONG !!!!!

BWAAAAAAAAAHAAAAAAAAA!!!!!

My Eeeevil Plan remains intact !!!

Kim
Top Poster
Top Poster

I Support My Forum

Posts : 5350
Join date : 2011-09-06
Location : South East Missouri

View user profile

Back to top Go down

Re: Metal Shavings in My Hyper Viper's Engine

Post  GallopingGhostler on Thu Feb 16, 2017 12:14 pm

Back in the mid 1980's, I purchased 2 Fuji 099S-II plain bearing cross scavenged engines (ABC no less, basically Enya 09-IV TV clones). This was from Hobby Shack in Fountain Valley, CA. They were on clearance for $10 each. Upon opening the crankcase backplates, found both had considerable aluminum machining grit. I promptly disassembled and flushed them out, reassembled them.

Prior to Estes, I never bothered to disassemble Cox engines, they ran out of the box whether in RTF or purchased separately. Since, I check all engines, no matter who they are from or where made. That taught me a strong lesson.

GallopingGhostler
Platinum Member
Platinum Member

Posts : 944
Join date : 2013-07-13
Location : Clovis, NM, US

View user profile http://cmaswr2.org/NM/BLACKWATERDRAWGOSPELRIDERS

Back to top Go down

Re: Metal Shavings in My Hyper Viper's Engine

Post  Admin on Thu Feb 16, 2017 4:55 pm

That passed the first class quality control at Estes Thumbs Down

You should open and inspect every Estes era engine before use. I've cleaned my share of shavings and grit out of those Sure Starts.

_________________
-Jacob



Admin
Administrator

Posts : 4228
Join date : 2010-07-27
Location : Roseville/St.Paul Minnesota, USA

View user profile http://sites.google.com/site/coxenginecollection/

Back to top Go down

Re: Metal Shavings in My Hyper Viper's Engine

Post  rsv1cox on Thu Feb 16, 2017 5:18 pm

Kim wrote:WRONG !!!!!

BWAAAAAAAAAHAAAAAAAAA!!!!!

My Eeeevil Plan remains intact !!!

" To be featured in an 'Assembly/First Flight Thread'" ................Assembly...can't be anything simple.  Something mid to late 90's.  with a canopy and or lots of small parts, bombs, rockets ...Texan/Skyraider maybe...........

rsv1cox
Diamond Member
Diamond Member

Posts : 2039
Join date : 2014-08-18
Location : West Virginia

View user profile

Back to top Go down

Re: Metal Shavings in My Hyper Viper's Engine

Post  Kim on Thu Feb 16, 2017 7:08 pm

rsv1cox wrote:Assembly...can't be anything simple.  

Remember that you're dealing with someone that can be challenged just by hooking up flying lines !!!

Kim
Top Poster
Top Poster

I Support My Forum

Posts : 5350
Join date : 2011-09-06
Location : South East Missouri

View user profile

Back to top Go down

Re: Metal Shavings in My Hyper Viper's Engine

Post  crankbndr on Thu Feb 16, 2017 7:11 pm


crankbndr
Diamond Member
Diamond Member

I Support My Forum

Posts : 1864
Join date : 2011-12-10
Location : Homestead FL

View user profile

Back to top Go down

Re: Metal Shavings in My Hyper Viper's Engine

Post  KariFS on Thu Feb 16, 2017 10:48 pm

There was one of those Hyper Vipers in one of Kim's swap meet photos, so that would bee my guess too. Good point about the shavings too, I am going to check mine before running.

KariFS
Platinum Member
Platinum Member

Posts : 960
Join date : 2014-10-10
Age : 45
Location : Finland

View user profile

Back to top Go down

Re: Metal Shavings in My Hyper Viper's Engine

Post  Admin on Fri Feb 17, 2017 12:27 am

It cannot be the Hyper Viper as not only is it not NIB, the engine seen here in his pic is not a Sure Start. The engine has no choke tube and looks to have a round drive plate.


_________________
-Jacob



Admin
Administrator

Posts : 4228
Join date : 2010-07-27
Location : Roseville/St.Paul Minnesota, USA

View user profile http://sites.google.com/site/coxenginecollection/

Back to top Go down

Re: Metal Shavings in My Hyper Viper's Engine

Post  crankbndr on Fri Feb 17, 2017 6:18 am

Oh, Just one more thing sir, I'll be turning in my badge now. Very Happy

crankbndr
Diamond Member
Diamond Member

I Support My Forum

Posts : 1864
Join date : 2011-12-10
Location : Homestead FL

View user profile

Back to top Go down

Re: Metal Shavings in My Hyper Viper's Engine

Post  KariFS on Fri Feb 17, 2017 6:47 am

"My wife says I'm the second smartest. She claims there are 80 guys tied for first." lol!

KariFS
Platinum Member
Platinum Member

Posts : 960
Join date : 2014-10-10
Age : 45
Location : Finland

View user profile

Back to top Go down

Re: Metal Shavings in My Hyper Viper's Engine

Post  OVERLORD on Fri Feb 17, 2017 7:19 am

Kim wrote:WRONG !!!!!

BWAAAAAAAAAHAAAAAAAAA!!!!!

My Eeeevil Plan remains intact !!!

That engine comes out of a Star Wars thing, a Naboo or X-Wing fighter!!!

OVERLORD
Platinum Member
Platinum Member

Posts : 1087
Join date : 2013-03-19
Age : 50
Location : Normandy, France

View user profile

Back to top Go down

Re: Metal Shavings in My Hyper Viper's Engine

Post  Kim on Fri Feb 17, 2017 8:17 am

BWWWWWAAAAAAAAAAAAAA!

It IS a HYPER VIPER !!!!!!!!!

Once again my lack of discipline (not being able to keep my big mouth---er---keyboard shut) fails me in the face of my model airplane Ninja buds!

The guy had two Vipers, the used one in the photos and a NIB next to it.

This is a plane I had no idea existed before I hooked up here and on Mark's .049 Collectors Group. It apparently came out when I was occupied with being married and buying land for a house.

While I've been a little obsessed with it, it 's STILL (for me) not the Holy Grail of stuntable RTF's that Larry Renger's beautiful blue-wing ME-109 was back in the mid 70's (still waiting in the the bushes for that one).

Anyway, it's engine has at least 30 minutes run time, and acted like it's gonna be a runner, so I'll test fly it today if the winds will lay and the head & chest cold I picked up in Ohio will give me a chance.



















































Kim
Top Poster
Top Poster

I Support My Forum

Posts : 5350
Join date : 2011-09-06
Location : South East Missouri

View user profile

Back to top Go down

Re: Metal Shavings in My Hyper Viper's Engine

Post  rsv1cox on Fri Feb 17, 2017 8:38 am

Kim wrote:BWWWWWAAAAAAAAAAAAAA!

It IS a HYPER VIPER !!!!!!!!!

Once again my lack of discipline  (not being able to keep my big mouth---er---keyboard shut) fails me in the face of my model airplane Ninja buds!

The guy had two Vipers, the used one in the photos and a NIB next to it.

This is a plane I had no idea existed before I hooked up here and on Mark's .049 Collectors Group.  It apparently came out when I was occupied with being married and buying land for a house.  

While I've been a little obsessed with it, it 's STILL (for me) not the Holy Grail of stuntable RTF's that Larry Renger's beautiful blue-wing ME-109 was back in the mid 70's (still waiting in the the bushes for that one).

Anyway, it's engine has at least 30 minutes run time, and acted like it's gonna be a runner, so I'll test fly it today if the winds will lay and the head & chest cold I picked up in Ohio will give me a chance.



Uh...Up goes to up, down goes to down. Smile

Bob



















rsv1cox
Diamond Member
Diamond Member

Posts : 2039
Join date : 2014-08-18
Location : West Virginia

View user profile

Back to top Go down

Re: Metal Shavings in My Hyper Viper's Engine

Post  GallopingGhostler on Fri Feb 17, 2017 9:55 am

Neat! Thumbs Up
An Estes Nitroplanes / Hobby King Cox RTF! sunny
(But with apologies to Larry Renger for such a nifty CL design!) drunken

GallopingGhostler
Platinum Member
Platinum Member

Posts : 944
Join date : 2013-07-13
Location : Clovis, NM, US

View user profile http://cmaswr2.org/NM/BLACKWATERDRAWGOSPELRIDERS

Back to top Go down

Re: Metal Shavings in My Hyper Viper's Engine

Post  RknRusty on Fri Feb 17, 2017 11:45 pm

If I had ever known there was such a thing as the Hyper Viper, I would have surely bought one. But it obviously, like Kim, it came on the scene while I was out of the hobby other than a flight once every year or two. Otherwise I'd no doubt have a box of the surviving castor-gummed pieces lying around somewhere. I would love to have one to modify with a TD(or an AME .061) and win trophies at 1/2A Day in Huntersville every year.

How big is the fuel tank in it, and how much does it weigh? What about the control rod, is it stiff enough to do the job without flexing?
Lusty Rusty

_________________
Don't Panic!
...and never Ever think about how good you are at something...
while you're doing it!


My Hot Rock & Blues Playlist

RknRusty
Moderator

Posts : 10008
Join date : 2011-08-10
Age : 60
Location : South Carolina, USA

View user profile

Back to top Go down

Re: Metal Shavings in My Hyper Viper's Engine

Post  Kim on Sat Feb 18, 2017 6:19 am

RknRusty wrote:If I had ever known there was such a thing as the Hyper Viper, I would have surely bought one. But it obviously, like Kim, it came on the scene while I was out of the hobby other than a flight once every year or two. Otherwise I'd no doubt have a box of the surviving castor-gummed pieces lying around somewhere. I would love to have one to modify with a TD(or an AME .061) and win trophies at 1/2A Day in Huntersville every year.

How big is the fuel tank in it, and how much does it weigh? What about the control rod, is it stiff enough to do the job without flexing?
Lusty Rusty

I'll weigh it and measure the tank today. The pushrod is just wire, but looks pretty substantial. As always, I have regrets after-the-fact, and my only one with the Dayton trip is that I didn't go ahead and get the second Viper for experimenting.

Since the one I have is a runner, it will probably get some engine swapping...maybe one of Matt's or Bernie's little monsters...just to see what it will do.

Yeah, I'm not sure of the exact time when this plane came out, but it seems like the only new Cox models in that general time frame were the Star Wars models. I almost bought one of the Gold Plated Mini Stunts (may have been about the same time), but remembered how the fuel took the silver plating off the Cosmic Winds and Aracobras, and had no interest in buying a shelf-sitter.

More Coffee Kim

Kim
Top Poster
Top Poster

I Support My Forum

Posts : 5350
Join date : 2011-09-06
Location : South East Missouri

View user profile

Back to top Go down

Re: Metal Shavings in My Hyper Viper's Engine

Post  getback on Sat Feb 18, 2017 6:40 am

I see we went from shaving to Hyping Very Happy The Viper looks pretty neat be watching for a flight report . Hope the lead out don't come loose in a loop D loop lol! Is this the first and only MADE IN CHINA (COX ) ? lol!

getback
Top Poster
Top Poster

Posts : 3778
Join date : 2013-01-18
Age : 59
Location : julian, n.c.

View user profile

Back to top Go down

Re: Metal Shavings in My Hyper Viper's Engine

Post  Kim on Sat Feb 18, 2017 6:59 am

getback wrote:I see we went from shaving to Hyping Very Happy  The Viper looks pretty neat be watching for a flight report . Hope the lead out don't come loose in a loop D loop lol! Is this the first and only MADE IN CHINA (COX ) ? lol!

I thought the others of the period came from China, but not for sure.  

Anyway, since I kinda hijacked my own thread, I re-titled it to keep all my Hyper Viper posts in one lump.

Also, anyone having some Hyper Viper experience, flying or otherwise, please feel free to check in.

The Adventure continues...

Kim
Top Poster
Top Poster

I Support My Forum

Posts : 5350
Join date : 2011-09-06
Location : South East Missouri

View user profile

Back to top Go down

Re: Metal Shavings in My Hyper Viper's Engine

Post  crankbndr on Sat Feb 18, 2017 7:48 am

Very nice Cox model the Hyper Viper, dissing it because of China I don't get. No one here bought anything from China?
A few years ago I bought and assembled one from eBay, back then they could be had for 50$. The elevator would hang up on mine when working the bell crank.
A little sandpapering fixed it. Larry Ringer posted about the model on .049 Collectors Group, he even had some hop up tips.
I found them by using the search function. The last two screws in the nose were fun,  lol!


A Tube vid

https://www.youtube.com/watch?v=eH6lyTPuarY



They have gone up on eBay also

crankbndr
Diamond Member
Diamond Member

I Support My Forum

Posts : 1864
Join date : 2011-12-10
Location : Homestead FL

View user profile

Back to top Go down

Re: Metal Shavings in My Hyper Viper's Engine

Post  Kim on Sat Feb 18, 2017 10:23 am

No China-Dissing here. My operations on the hill would be GREATLY, if not totally shut down if I ran a 'China Filter' through the place.

I had seen the Hyper Vipers on Ebay before, but somehow just glided over them 'till I saw the used one at the meet.

Good chance that I'll be adopting one from there, and experiment with some different engines.

Kim
Top Poster
Top Poster

I Support My Forum

Posts : 5350
Join date : 2011-09-06
Location : South East Missouri

View user profile

Back to top Go down

Re: Metal Shavings in My Hyper Viper's Engine

Post  Kim on Sat Feb 18, 2017 11:05 am

RknRusty wrote:If I had ever known there was such a thing as the Hyper Viper, I would have surely bought one. But it obviously, like Kim, it came on the scene while I was out of the hobby other than a flight once every year or two. Otherwise I'd no doubt have a box of the surviving castor-gummed pieces lying around somewhere. I would love to have one to modify with a TD(or an AME .061) and win trophies at 1/2A Day in Huntersville every year.

How big is the fuel tank in it, and how much does it weigh? What about the control rod, is it stiff enough to do the job without flexing?
Lusty Rusty

The tank holds 1 ounce (I measured twice) and the Viper came in at 11.1 ounces with that fuel on board.

While I was messing with it, I slid a yard stick under the front to give some idea of it's dimensions. I'll take more detailed measurements if you need them.


Kim
Top Poster
Top Poster

I Support My Forum

Posts : 5350
Join date : 2011-09-06
Location : South East Missouri

View user profile

Back to top Go down

Re: Metal Shavings in My Hyper Viper's Engine

Post  Sponsored content


Sponsored content


Back to top Go down

Page 1 of 2 1, 2  Next

View previous topic View next topic Back to top

- Similar topics

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