Notices
Glow Engines Discuss RC glow engines

OS engines users Club

Old 02-19-2019, 11:42 AM
  #851  
aspeed
 
aspeed's Avatar
 
Join Date: Jul 2011
Location: Ruthven, ON, CANADA
Posts: 3,369
Likes: 0
Received 3 Likes on 3 Posts
Default

Ya the K&B might be better. At least it's ABC BB. I have never actually seen one here. The LAs are pretty good for weight and power. Just the cost is a bit high for new. I tend to get them for $20 at swap meets though, as glow is out of favour lately. Probably have 5 or 10. I really am more attracted to the ASP/Magnum blue head .15s. They don't seem available any more though. They go pretty good. Not sure if the K&B would be competitive with them? I don't know if the .15 LA is Chinese now, the .46 AX has been for a while. Really ASP is more reasonable and Chinese anyway. Being in a different country than most of you guys, it really doesn't matter what country stuff is from. The US doesn't keep us as hostages though I guess. Not like China. Trump is at least the devil we know. :-) Not trying to be political, just that it is a factor sometimes.
Old 02-19-2019, 12:19 PM
  #852  
Mr Cox
 
Mr Cox's Avatar
 
Join Date: Jul 2007
Location: Karlstad, SWEDEN
Posts: 3,791
Likes: 0
Received 0 Likes on 0 Posts
Default

I have one of the KB .18 Aero engines, I wrote a thread about it here at the time too: KB .18 Aero
Long story short, it is not a bad engine really, but it is has less power than the ASP .15 XLS engine.
Old 05-24-2019, 11:39 AM
  #853  
stackerjack
 
Join Date: Sep 2004
Location: LondonUnited Kingdom, UNITED KINGDOM
Posts: 27
Likes: 0
Received 0 Likes on 0 Posts
Default

Hi Guys,
Sorry to interrupt your thread (I'll get the hang of this someday) Does anyone know where I can get an M11x.75 tap and die in the U.K. please?
Old 07-14-2019, 09:38 AM
  #854  
Captcrunch44
 
Join Date: Aug 2007
Location: dysart, IA
Posts: 1,610
Received 6 Likes on 6 Posts
Default

So is Having just a couple OS engineís ok to be in this group.
6-FS 90ís
5-FS 52ís.
1-? 20 two stroke
Old 07-14-2019, 10:41 AM
  #855  
RACE 66
 
Join Date: Jun 2005
Location: BELLINGHAM, WA
Posts: 246
Likes: 0
Received 0 Likes on 0 Posts
Default

Whether they run or not, it is a great sickness, so fine it is. Now just for fun, how many are currently flying?
Myself, I have more in the 'drawer' than flying, typical. I have a old version of the FS 90 that I got over 20 years ago, that has maybe a gallon of
fuel through it and has yet to be fired up since purchase ! Great times it is....... Oh...almost forgot, bought it for 20 bucks, aka divorce sale.

Mike
Old 07-14-2019, 12:26 PM
  #856  
Captcrunch44
 
Join Date: Aug 2007
Location: dysart, IA
Posts: 1,610
Received 6 Likes on 6 Posts
Default

Well right now only one is flying itís in a Taube.
Going to change out that 90 for another I have it needs bearings.
Old 08-04-2019, 03:58 AM
  #857  
Captcrunch44
 
Join Date: Aug 2007
Location: dysart, IA
Posts: 1,610
Received 6 Likes on 6 Posts
Default

Hobbs
i have a few OS 90ís I need to overhaul.
How do you get that cam bearing screw out?
Old 08-04-2019, 04:07 AM
  #858  
Hobbsy
My Feedback: (102)
 
Hobbsy's Avatar
 
Join Date: Dec 2001
Location: Colonial Beach, VA
Posts: 20,040
Likes: 0
Received 16 Likes on 16 Posts
Default

Lets see, are you talking about the left cam bearing? Thanks
Old 08-04-2019, 04:15 AM
  #859  
Hobbsy
My Feedback: (102)
 
Hobbsy's Avatar
 
Join Date: Dec 2001
Location: Colonial Beach, VA
Posts: 20,040
Likes: 0
Received 16 Likes on 16 Posts
Default

Aw, you're talking the older rear cam 90's, maybe.
Old 08-04-2019, 04:20 AM
  #860  
Hobbsy
My Feedback: (102)
 
Hobbsy's Avatar
 
Join Date: Dec 2001
Location: Colonial Beach, VA
Posts: 20,040
Likes: 0
Received 16 Likes on 16 Posts
Default

http://www.rcuniverse.com/forum/glow...90-manual.html

Post #3 has a couple of links.
Old 08-04-2019, 04:22 AM
  #861  
Captcrunch44
 
Join Date: Aug 2007
Location: dysart, IA
Posts: 1,610
Received 6 Likes on 6 Posts
Default

Originally Posted by Hobbsy View Post
Aw, you're talking the older rear cam 90's, maybe.
lol
the rear cam 90 has a screw that hold in the rear bearing. I broke the last one and canít determine if itís left or right threads. And heat is probably my friend but it is hard to get to.
Old 08-06-2019, 02:43 AM
  #862  
The Ghost
 
The Ghost's Avatar
 
Join Date: Mar 2004
Location: UlladullaNSW, AUSTRALIA
Posts: 1,846
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by stackerjack View Post
Hi Guys,
Sorry to interrupt your thread (I'll get the hang of this someday) Does anyone know where I can get an M11x.75 tap and die in the U.K. please?
I got mine on Fleebay, about the only place to get good tap and dies without spending a lot of $$$$$$
Old 09-07-2019, 10:02 PM
  #863  
Fast Pilot
 
Join Date: May 2015
Posts: 20
Likes: 0
Received 0 Likes on 0 Posts
Default

Hi Guys,
Sorry to interrupt your thread.

I found some 1 liter cans of Klotz kl 200 oil but they are rusted.
I would like to know if even glow engine oil ages.

Thanks a lot
Old 09-08-2019, 11:42 AM
  #864  
aspeed
 
aspeed's Avatar
 
Join Date: Jul 2011
Location: Ruthven, ON, CANADA
Posts: 3,369
Likes: 0
Received 3 Likes on 3 Posts
Default

I think it should be fine if stored in good conditions. You should filter it after mixing. Nitro is usually good for a while too. As long as they don't change colour. Methanol is not good for too long, or gasoline either for that matter.
Old 09-08-2019, 04:32 PM
  #865  
Jesse Open
 
Join Date: Mar 2018
Location: Just North of Canadian border
Posts: 1,990
Likes: 0
Received 4 Likes on 3 Posts
Default

I have used glow fuel over thirty years old. Worked fine. Gasoline that old you could varnish a fence with.
(If you could handle the smell)
Old 09-09-2019, 03:32 AM
  #866  
1QwkSport2.5r
 
1QwkSport2.5r's Avatar
 
Join Date: Oct 2006
Location: Cottage Grove, MN
Posts: 9,898
Received 11 Likes on 11 Posts
Default

As long as the oil containers aren’t compromised, it should be fine. Once opened, decant to a sealed container to prevent moisture absorbtion. Klotz oil will absorb moisture if left open to the atmosphere.
Old 11-30-2019, 01:41 PM
  #867  
mirwin
My Feedback: (1)
 
mirwin's Avatar
 
Join Date: Dec 2004
Location: Winchester, VA
Posts: 832
Likes: 0
Received 0 Likes on 0 Posts
Default OS FS-120 Surpass III - Strange Problem

I have what I think is an unusual problem with my OS FS-120 Surpass III which has about 300 trouble-free flights on it.

After flying the last time and during clean-up & maintenance, I noticed a distinct tick in the engine each revolution. The engine turned over okay otherwise, and it ran fine during that last flight. I intended to investigate that tick before flying again, thinking I may need to adjust the valves.

A month or so later, I put it on the bench, and I discovered that the engine turns over freely with no tick. However, the following new conditions have this old mechanic scratching his head.

There is NO compression.

The piston cycles smoothly and silently as it should.

The valves do not function.

As I said before, there is no ticking or any other unusual sound when I manually turn over the engine.

I don't see how a broken piston ring could be the problem (and source of the tick). That wouldn't prevent the cam from operating the valves. And I think it's unlikely that I would have a broken piston ring and two broken pushrods or a cam gone flat.

Any ideas what this might mean? I'm lost for ideas.

Thanks
Old 11-30-2019, 02:04 PM
  #868  
bhady
 
Join Date: Sep 2003
Location: Fairmont, MN
Posts: 272
Likes: 0
Received 1 Like on 1 Post
Default

valves stuck open????
Old 11-30-2019, 05:38 PM
  #869  
mirwin
My Feedback: (1)
 
mirwin's Avatar
 
Join Date: Dec 2004
Location: Winchester, VA
Posts: 832
Likes: 0
Received 0 Likes on 0 Posts
Default

bhady, thanks for the reply.


The valves are closed. I removed the valve cover and I can manipulate both valves freely. The valve springs are still strong, as I would expect.

I'll remove the camshaft cover-plate, but I wanted to wait for ideas from this forum before I remove the engine from the plane.

Mike
Old 11-30-2019, 09:47 PM
  #870  
hsukaria
 
Join Date: Feb 2007
Location: Dearborn, MI
Posts: 3,215
Received 0 Likes on 0 Posts
Default

I have had the same symptoms in the past with no compression. But it would come back after running the engine. O thought it might be the piston ring not seated right but I never had to investigate because it work fine after running it.
Old 12-01-2019, 08:59 AM
  #871  
mirwin
My Feedback: (1)
 
mirwin's Avatar
 
Join Date: Dec 2004
Location: Winchester, VA
Posts: 832
Likes: 0
Received 0 Likes on 0 Posts
Default

Hsukaria,

Thanks. I didn't consider trying to start the engine. I was a little concerned that if the piston ring was broken, the pieces might ruin the cylinder sleeve and the piston.

But I might try it. Can't hurt if the engine just spins.

Do you know if the valve train was working properly when you started the engine?

Mike
Old 12-01-2019, 10:38 AM
  #872  
hsukaria
 
Join Date: Feb 2007
Location: Dearborn, MI
Posts: 3,215
Received 0 Likes on 0 Posts
Default

The valves also might stick at first causing compression loss.
I also check the valve gaps after not using it for a while just a precaution.
Also, I use all synthetic oil in the fuel on my 4strokes to prevent gumming the valvetrain.
Old 12-01-2019, 02:04 PM
  #873  
mirwin
My Feedback: (1)
 
mirwin's Avatar
 
Join Date: Dec 2004
Location: Winchester, VA
Posts: 832
Likes: 0
Received 0 Likes on 0 Posts
Default

Hsukaria,

In my reply to bhady, I wrote that I can manually manipulate both valves freely. The valve springs are strong, as I would expect. So, I don't believe I have a problem with sticky valves.

Thanks,
Mike
Old 12-02-2019, 04:48 AM
  #874  
N1EDM
My Feedback: (2)
 
Join Date: Jul 2002
Location: Brockton, MA
Posts: 4,216
Likes: 0
Received 2 Likes on 2 Posts
Default

There is the possibility that there could be a bit of dried castor oil film in the valve seats or on the valves to prevent seating and sealing. A good run will soften and get rid of this.

Just my $.02

Bob
Old 12-02-2019, 08:58 AM
  #875  
mirwin
My Feedback: (1)
 
mirwin's Avatar
 
Join Date: Dec 2004
Location: Winchester, VA
Posts: 832
Likes: 0
Received 0 Likes on 0 Posts
Default

Thanks, Bob

The valves work fine. I can open and close them manually just fine. The problem is that the camshaft or the lifters or the push rods or all of the above doesn't open and close the valves.

The valve springs keep the valves closed. Therefore, there should be compression.

The effect is that the engine makes no compression and the valve-train does not function.

Mike

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information

Copyright © 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.