Glow Engines Discuss RC glow engines

OS 65AX ABL "rust" issue

Reply
Old 01-29-2013, 06:31 PM
  #26
AMB
 
Join Date: Jun 2003
Location: winter park, FL
Posts: 6,748
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: OS 65AX ABL

OK GROUP Maybe repeating myself have 50 plus engine most are diesel or diesel conversions and 8 or 9 4 strk glow I have never lost a bearing in any engine,or rust the 4 strokes
get a short run on model diesel fuel (plug energized) they might sit for a year or more gummy sometimes a quick rinse with diesel fuel solves the issue
on one of my OS instruction sheets it states rinse well with KEROSENE and then store in plastic bag if storing fror a period of time
PE Reivers suggestion of" how to" is a good one also- martin

If you check the diesel site you never see this come up, failures sure, broken cranks, egged out rods, thats about it
AMB is offline  
Reply With Quote
Old 01-29-2013, 06:43 PM
  #27
Lightspeed1551
 
Join Date: Jul 2010
Location: Palatine, IL
Posts: 183
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: OS 65AX ABL

Ware as the engine made? Some of the newer OS engines are being made in China. Low quality china bearings could be the source of the rust.
Lightspeed1551 is offline  
Reply With Quote
Old 01-29-2013, 06:48 PM
  #28
JollyPopper
 
JollyPopper's Avatar
 
Join Date: Oct 2002
Location: Mountain Home, AR
Posts: 2,577
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: OS 65AX ABL

To get back to the OP's question, it smells like smoke to me. For bearings with that little time on them to fail, he would almost have to be putting something corrosive in the engine between runs to achieve it. BS
JollyPopper is offline  
Reply With Quote
Old 01-29-2013, 10:12 PM
  #29
airraptor
 
Join Date: Jan 2004
Location: fairfield, CA
Posts: 4,083
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: OS 65AX ABL


Quote:
ORIGINAL: Lightspeed1551

Ware as the engine made? Some of the newer OS engines are being made in China. Low quality china bearings could be the source of the rust.

+1
airraptor is offline  
Reply With Quote
Old 01-30-2013, 02:46 AM
  #30
dingo9882
 
Join Date: Apr 2005
Location: Sandy Hook, CT
Posts: 285
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: OS 65AX ABL

I have an OS 120 AX that eats bearing every 50 flights or so. I thought it was something I was doing until I found out a whole lot of other people were having the same problem. I replace bearings in that engine twice. Then the third time I switched to Boca bearings, I got the high performance speed bearings so far so good. It is very possible it was rust, but I have never heard of that before but it is possible. Maybe moisture got in there some how from your fuel or whatever I am not sure though. You said you live in a very dry climate I am not sure how else moisture could get in there to cause the oxidizing of the metal except from maybe a bad batch of fuel.
dingo9882 is offline  
Reply With Quote
Old 01-30-2013, 02:55 AM
  #31
Lifer
 
Lifer's Avatar
 
Join Date: Aug 2008
Location: Kansas City, MO
Posts: 3,866
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: OS 65AX ABL

Several years ago I was using a fuel that had extreme pressure additives, which was explained to me were chlorine based. Good for wear protection but promoted rust if not cleaned off after running. A friend heard of the problem and gave me a can of "Corrosion X." No rust issues since, in over 15 years. Hope this helps.
Lifer is offline  
Reply With Quote
Old 01-30-2013, 05:30 AM
  #32
bjr_93tz
 
Join Date: Dec 2006
Location: ToowoombaQLD, AUSTRALIA
Posts: 872
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: OS 65AX ABL

I'm not going to pass any judgment on what Jaka's doing with his fuel and engines and I thank him for the pictures. However I've never seen a rear bearing AND crankshaft look so rusty in anything I've ever run.

Here's a couple of photo's of the three bearings I've pulled from my YS DZ170 pattern motor at the end of each season. The one one the left has a few rust spots but it's mainly oil staining and it has been sitting in a bag (straight as removed from the engine) for at least 2 years.

Fuel is home brew 10% coolpower blue oil, 20% nitro (cheapest stuff) and 70% methanol (industrial stuff nothing fancy). Motor gets irregular running and can be a few weeks between flights, then 4-5 flights/day when I have the time to practice. Never run the fuel out and never put after run oil in it and lugging an 18.5x12 prop. Everything in the cooler parts of the engine has like a thin green/blue film over it that wipes off with a finger.. I believe Koyo are a good bearing though, and OEM for my engine...
Attached Thumbnails
Click image for larger version

Name:	Zx71469.jpg
Views:	22
Size:	56.3 KB
ID:	1845966   Click image for larger version

Name:	Yt60642.jpg
Views:	19
Size:	57.7 KB
ID:	1845967  
bjr_93tz is offline  
Reply With Quote
Old 01-30-2013, 05:41 AM
  #33
Hobbsy
 
Hobbsy's Avatar
 
Join Date: Dec 2001
Location: Colonial Beach, VA
Posts: 17,089
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: OS 65AX ABL

Corrosion X is the best after run oil of all, bar none. Not only is rust prevented but keeps engines as clean as new inside.
Hobbsy is offline  
Reply With Quote
Old 01-30-2013, 06:25 AM
  #34
controlliner
 
controlliner's Avatar
 
Join Date: Mar 2009
Location: Ontario, Canada
Posts: 1,187
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: OS 65AX ABL

I don't use after run oil, ever. I have plane and car engines, none of them have rusted bearings. I believe using ARO strips the surface of any rust preventative ingredients and causes rust. I use Omega 10%. I also believe that the higher nitromethane fuels (which I don't use) have a higher incidence of rusting.
controlliner is offline  
Reply With Quote
Old 01-30-2013, 07:17 AM
  #35
fizzwater2
 
Join Date: Aug 2004
Location: Paola, KS
Posts: 2,720
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: OS 65AX ABL


Quote:
ORIGINAL: Hobbsy

Corrosion X is the best after run oil of all, bar none. Not only is rust prevented but keeps engines as clean as new inside.

Hobbsy - do you buy it in the 16oz bottle with the sprayer top, or is the smaller bottle packaged for firearms the same stuff?

Or, do you buy the spray cans? Just wondering..
fizzwater2 is offline  
Reply With Quote
Old 01-30-2013, 09:12 AM
  #36
ovationdave
 
ovationdave's Avatar
 
Join Date: Apr 2005
Location: Linden, MI
Posts: 494
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: OS 65AX ABL

The description for corrosion X is the same for three products: Corrosion X, Corrosion X Aviation, and Corrosion X for Guns. I don't know what the difference is, but I have used Corrosin X (red aerosol can) for years for Long Term engine storage. I don't use it as a regular after-run oil, however I am sure it would work well for that if you used it that way. I do know that my aerosol can eventually lost its pressure and I had to empty the can into a bottle to continue using it. I would prefer to by it in a bottle but the only one that I see like that is corrosion x for Guns.

Dave
ovationdave is offline  
Reply With Quote
Old 01-30-2013, 09:37 AM
  #37
camsbad
 
Join Date: Jan 2012
Location: Marydel, MD
Posts: 19
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: OS 65AX ABL

Sport_Pilot ...You should educate yourself before making a statement like the following:

"We are talking about a two stroke, there are no combustion products in contact with the crankshaft of a two stroke."

Please go take a basic mechanics course at your local community college or the local high school before making any more statements about any engine or how it operates.

Why do you think that there is oil in the fuel we use in the glow engine? It's there to lubricate the entire engine, including the crankshaft, and bearings, and cylinder and piston(s).
camsbad is offline  
Reply With Quote
Old 01-30-2013, 09:44 AM
  #38
airraptor
 
Join Date: Jan 2004
Location: fairfield, CA
Posts: 4,083
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: OS 65AX ABL

I never use after run oil and never will!

look up the OS 140 engine and what all the Pro's did soon. On every new engine the would remove the stock bearings and replace them.
airraptor is offline  
Reply With Quote
Old 01-30-2013, 09:59 AM
  #39
Texastbird
 
Texastbird's Avatar
 
Join Date: Jul 2002
Location: La Porte, TX
Posts: 1,215
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: OS 65AX ABL

I had a 61FX peel the liner real bad after only a few flights. I sent it in under warranty and they told me the bearing had rusted causing the destruction of the liner. Total rubbish of course, but they did replace the engine. The best way to prevent corrosion in a glow motor is to follow Pe's recipe and run the engine on it long enough to get the contaminates out of the lower parts of the engine. It only takes a few minutes at the end of the day. I use lighter fluid because its easy to find and a mixture of transmission fluid and Marvel mystery oil. Just pouring some oil in the engine does nothing to flush the nitro out of the engine. But burning it out and replacing it with the naptha and oil mixture really does the trick.
Texastbird is offline  
Reply With Quote
Old 01-30-2013, 10:12 AM
  #40
controlliner
 
controlliner's Avatar
 
Join Date: Mar 2009
Location: Ontario, Canada
Posts: 1,187
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: OS 65AX ABL


Quote:
ORIGINAL: camsbad

Sport_Pilot ... You should educate yourself before making a statement like the following:

''We are talking about a two stroke, there are no combustion products in contact with the crankshaft of a two stroke.''

Please go take a basic mechanics course at your local community college or the local high school before making any more statements about any engine or how it operates.

Why do you think that there is oil in the fuel we use in the glow engine? It's there to lubricate the entire engine, including the crankshaft, and bearings, and cylinder and piston(s).
He knows that there is always a fresh charge of fuel entering the crank case. What he is stating is that there is no spent fuel residue entering the crank case like in a model four cycle engine.
controlliner is offline  
Reply With Quote
Old 01-30-2013, 10:58 AM
  #41
fly24-7
 
fly24-7's Avatar
 
Join Date: Dec 2005
Location: Shrewsbury, MA
Posts: 378
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: OS 65AX ABL

I'm no engine expert, but it's hard to believe that rust would build up that quickly to the point of killing the engine. I have multiple engines that are 5+ years old. I run Omega fuel and burn off as much of the residual fuel in the engine as I can at the end of each flying day. I do nothing special in the winter when the planes sit in the basement. Just leave them dry. I've never had a problem getting an engine running again in the spring.

I have to say I have no idea what these engines look like on the inside because the only thing I've done maintenance-wise is replace spent glow plugs. They run strong and start very reliably. So, it sounds to me like the hobby services guys are reading you a line out of some troubleshooting manual. It doesn't make sense to me that an engine would go bad that soon unless there's a defect in it or it was badly abused.
fly24-7 is offline  
Reply With Quote
Old 01-30-2013, 11:42 AM
  #42
MJD
 
MJD's Avatar
 
Join Date: May 2003
Location: Orangeville, ON, CANADA
Posts: 8,602
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: OS 65AX ABL


Quote:
ORIGINAL: camsbad

Sport_Pilot ... You should educate yourself before making a statement like the following:

''We are talking about a two stroke, there are no combustion products in contact with the crankshaft of a two stroke.''

Please go take a basic mechanics course at your local community college or the local high school before making any more statements about any engine or how it operates.

Why do you think that there is oil in the fuel we use in the glow engine? It's there to lubricate the entire engine, including the crankshaft, and bearings, and cylinder and piston(s).
No way... really?

We're all happy that you took basic mechanics, obviously you excelled at the subject. Perhaps you could take a minute to explain the operation of a 2 stroke front intake glow engine for the rest of us who don't get it? I always thought combustion took place in the combustion chamber, and the combustion products went out through the exhaust port - but evidently I have it all backwards like Sport_Pilot.

Maybe next time proof read your post before sending. Or take reading comprehension at the local community college.

MJD is offline  
Reply With Quote
Old 01-30-2013, 12:02 PM
  #43
controlliner
 
controlliner's Avatar
 
Join Date: Mar 2009
Location: Ontario, Canada
Posts: 1,187
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: OS 65AX ABL

Eating Popcorn
controlliner is offline  
Reply With Quote
Old 01-30-2013, 12:03 PM
  #44
Sport_Pilot
 
Sport_Pilot's Avatar
 
Join Date: Jan 2002
Location: Acworth, GA
Posts: 16,889
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: OS 65AX ABL


Quote:
ORIGINAL: camsbad

Sport_Pilot ...You should educate yourself before making a statement like the following:

"We are talking about a two stroke, there are no combustion products in contact with the crankshaft of a two stroke."

Please go take a basic mechanics course at your local community college or the local high school before making any more statements about any engine or how it operates.

Why do you think that there is oil in the fuel we use in the glow engine? It's there to lubricate the entire engine, including the crankshaft, and bearings, and cylinder and piston(s).

You are the one who needs a mechanics course, or maybe english course, not sure which. The burned nitro and burned methanol (combustion products) go out the exhaust, thus the nitric acid never touch's the internals of a two stroke.
Sport_Pilot is offline  
Reply With Quote
Old 01-30-2013, 01:31 PM
  #45
earlwb
 
earlwb's Avatar
 
Join Date: Aug 2009
Location: Grapevine, TX
Posts: 5,969
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: OS 65AX ABL

I have remembered that a few people had mentioned that they may have chosen the wrong bearing size as well as specified the wrong type of  bearings to use as well.  Probably some accountant types got in the way using it as a cost cutting measure.  Not all ball bearings are the same. They may look the same visually, but there are quite a few subtle differences in their designs and how they work too. 
earlwb is offline  
Reply With Quote
Old 01-30-2013, 02:11 PM
  #46
ovationdave
 
ovationdave's Avatar
 
Join Date: Apr 2005
Location: Linden, MI
Posts: 494
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: OS 65AX ABL


Quote:
ORIGINAL: controlliner

Eating Popcorn
Pass the butter please!
ovationdave is offline  
Reply With Quote
Old 01-30-2013, 02:19 PM
  #47
donalddrew
Thread Starter
 
Join Date: Jun 2012
Location: Poway, CA
Posts: 2
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: OS 65AX ABL

PE Reivers wrote "the end user is to blame, mainly because he did not get the proper instructions to keep his engine free of corrosion after he shut it down at the field.
EVERYbody knows about the use of "after run"treatment
", unless you are a novice at running glow engines. (here lies the problem)"
Perhaps he didn't read my original post. 2 or so month's I've been flying this plane a couple of time/week over the 2 months I've had it. (so it doesn't sit around) I do run the engine dry at the end of each day. Drain the fuel and run the engine til it quits. Then with the glow plug driver attached turn it over with an electric started several more times. Then put (as per instructions on afterrun oil) several drops ARO into carb and through glow plug hole. Then turn over engine again with electric starter. It seems to me that perhaps "EVERYbody" doesn't know about the use of afterrun treatment.. Several of the posters state they never run after run oil. And if you speak with the folks at Morgan Fuels, they say you don't need to use ARO with their fuels. So what I surmise from the posts so far: Possible a bad bearing/cheper bearing materialfrom the start, remove back cover to check for rust before sending to Hobby Services, ARO certainly won't hurt, run engine dry at end of day.
donalddrew is offline  
Reply With Quote
Old 01-30-2013, 04:16 PM
  #48
aspeed
 
aspeed's Avatar
 
Join Date: Jul 2011
Location: Ruthven, ON, CANADA
Posts: 2,840
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: OS 65AX ABL

I am going out on a limb here and saying OS should stand behind their choice in lousy bearings.  I never used after run oil in any motors for 40 years unless using nitro over 10% nitro, with no problems with rusty bearings.  I have had a bit of rust on crankshafts that came off with steel wool/fine sandpaper, and have only replaced bearings on swap meet and garage sale motors.  There is always the choice of plain bearing motors too.
aspeed is offline  
Reply With Quote
Old 01-30-2013, 04:21 PM
  #49
ovationdave
 
ovationdave's Avatar
 
Join Date: Apr 2005
Location: Linden, MI
Posts: 494
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: OS 65AX ABL

I have to say, I know some have been razzing this issue a bit, but in all honesty, at the end of a flying day, for YEARS, all I did was empty my tank, wipe off my planes, and load up. I have NEVER had an issue with my engines. No ARO ever.

Its a faulty product. Plain an simple.

~Dave
ovationdave is offline  
Reply With Quote
Old 01-30-2013, 04:59 PM
  #50
blw
Moderator
 
blw's Avatar
 
Join Date: Mar 2004
Location: Opelika, AL
Posts: 9,176
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: OS 65AX ABL


Quote:
ORIGINAL: camsbad

Why do you think that there is oil in the fuel we use in the glow engine? It's there to lubricate the entire engine, including the crankshaft, and bearings, and cylinder and piston(s).
You didn't mention bushed connecting rod ends.
blw is offline  
Reply With Quote
Reply


Thread Tools
Search this Thread
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

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -8. The time now is 04:02 AM.