RunRyder RC
WATCH
 1 page 1137 views POST REPLY
10-11-2005 03:27 PM  13 years agoPost 1
cassat

rrVeteran

Alberta,Canada

My Posts: All  Forum  Topic

Hello
Had the Concept 30 all checke over and out at the pad yesterday.
The glow plug wasn't lighting, so I installed a new OS #8 and verified fuel to the HS needle, and open 2 1/2 turns. Cranked the starter for over 20 minutes after primimg with the exhaust closed. Engine didn't even fire once, so I assume the needle jets are plugged ??

Cassat

PM  EMAIL  GALLERY  Attn:RR  Quote
10-11-2005 03:33 PM  13 years agoPost 2
bubba01

rrApprentice

NE Pennsylvania

My Posts: All  Forum  Topic

Are your low/high needles set to the recommended factory settings?
How much time is on the engine?
Does the engine have good compression?
I assume you tried adjusting the trim setting for the throttle servo?
After trying to start it several times...did you remove the plug and check to see if the engine was flooding or getting any fuel?


Cop: Sir, have you been drinking? Driver: Why? Is there a fat girl in my backseat?

PM  EMAIL  GALLERY  Attn:RR  Quote
10-11-2005 03:35 PM  13 years agoPost 3
blockatvalpo

rrKey Veteran

Reston, VA

My Posts: All  Forum  Topic

This might be dumb, but before putting the new #8 in did you test it? Your glow drive might be dead and in need or a recharge. It might not have enough juice to light it.

PM  EMAIL  GALLERY  Attn:RR  Quote
10-11-2005 05:19 PM  13 years agoPost 4
reddragon

rrElite Veteran

Brooklyn, N.Y.

My Posts: All  Forum  Topic

Also which O.S. 32 is it that you're using? I think 2.5 turns out is a bit much and it may be too rich to start.

Wayne - Fly it like you stole it! You're in good hands with Runryder!

PM  EMAIL  GALLERY  Attn:RR  Quote
10-11-2005 05:49 PM  13 years agoPost 5
shesha

rrVeteran

Kuwait

My Posts: All  Forum  Topic

1- Check your glow plug heater, might be dead, take the glow plug out hook it directly to the heater and see if it lights up.

2- Check the number of turns onthe 32 if it is a 20c carb then 1 and 1/2 turns if 30 carb then 2 turns, for both of them if your breaking in the engine for the first time make sure you turn a little more on the rich side, thats counterclockwise from behind the heli.

3- Check that the fuel is being drawn to the engine, by the sounds of your comments plugging the exhaust and no fire up possible means fuel not going into the carb, check the fuel lines, otherwise can you feel any pressure (suction) on your finger when you plug the exahust outlet?
Also check the fuel tank for pressure leaks, take out the fuel clean thoroughly, leave fuel lines out and exaahust side a little long, out into a water basin and seal off one end with a fuel plug and the other end blow air into it, check for bubbles, if there are any leaks see if you can fix it, check your local hardware store for fuel tank repair kits or if you can afford it replace the entire tank.

4- Check the needles, get alcohol 99% and drop the carb in and let sit for one night, blow it out with an air compressor then open up the needles and clean gently.

5- If all else fails, I suggest you check the compression on the engine if it is a used engine.


Give us your feedback

Zero bubble....

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
10-11-2005 06:25 PM  13 years agoPost 6
airdodger

rrElite Veteran

Johnston USA

My Posts: All  Forum  Topic

Put some fuel in the plug hole or the carb and see if it fires, that will give you a starting point. What are you using to turn the engine over, and are you going the correct direction? Chris

PM  EMAIL  GALLERY  Attn:RR  Quote
10-12-2005 06:22 AM  13 years agoPost 7
cassat

rrVeteran

Alberta,Canada

My Posts: All  Forum  Topic

Starting
Well, found out that the low speed needle was closed.Opening that enabled me to start the engine for about three minutes. Then it suddenly
died rich after I removed the glow connector. Kept flooding out after that.
I think I will soak the carb on this one and try again.

Cassat

PM  EMAIL  GALLERY  Attn:RR  Quote
10-12-2005 11:21 AM  13 years agoPost 8
airdodger

rrElite Veteran

Johnston USA

My Posts: All  Forum  Topic

Try another plug, you may have damaged it. Chris

PM  EMAIL  GALLERY  Attn:RR  Quote
10-12-2005 11:40 AM  13 years agoPost 9
JuanRodriguez

rrProfessor

The Villages, Florida

My Posts: All  Forum  Topic

Then it suddenly died rich after I removed the glow connector
TOO RICH of a setting....you probably opened the low needle too much after discovering it was completely closed..... Close it up a little at a time until you can remove the glo driver and maintain an idle......

PM  EMAIL  GALLERY  Attn:RR  Quote
10-15-2005 02:10 PM  13 years agoPost 10
shesha

rrVeteran

Kuwait

My Posts: All  Forum  Topic

Cassat what carb do you have ? 20C or 3H ? I had the same problem on me os32 with 20 Carb, confirm back to me what you have and I may have the answer.

Zero bubble....

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
10-15-2005 03:32 PM  13 years agoPost 11
cassat

rrVeteran

Alberta,Canada

My Posts: All  Forum  Topic

Carb
Shesa,

I have the 20C carb on my OS 32H. I took it off last night and I think it is ok but am going to soak in cleaner anyway. I also removed the head and backplate. The plug was full of fuel again, but the low speed was
almost closed I noticed. I found that the fuel had a brownish color and that the rear bearing may have rust inside.Maybe it was a contamination problem?

Cassat

PM  EMAIL  GALLERY  Attn:RR  Quote
10-15-2005 06:13 PM  13 years agoPost 12
dkshema

rrMaster

Cedar Rapids, IA

My Posts: All  Forum  Topic

Clean out the crankcase and flush it real good. If you have the crank out, stick your finger in the bearings and rotate them, see if they feel smooth or notchy. Replace if bad.

Take your carb apart and clean it. Blow through the needle opening and the fuel inlet nipple to see if there is any glop in the spray bar. Set the two needles back to the factory settings.

Reassemble the motor using after run oil, put a new plug in, and have at it. It should start and run.

While you are checking things, check all fuel lines inside and outside the tank, the vent line, the tightness of the carb, clean the filter if you use one, and make sure it's not leaking air.

Dave

PM  EMAIL  GALLERY  Attn:RR  Quote
10-15-2005 11:45 PM  13 years agoPost 13
shesha

rrVeteran

Kuwait

My Posts: All  Forum  Topic

Here are pics of the 20C carb of my 32OS, the mixture control screw if you notice is flush with the carb inner circle refer to the pics for reference points, hope it fixes your problem, since your problem sounds exactly like mine when I started the os32 on the new heli, the mixture idle screw was not flush it had approximately 1 or 2 mm bulge from the carb circle, that resulted with a non firing engine, and sometimes firing and then a shutdown.

Zero bubble....

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
10-16-2005 07:41 PM  13 years agoPost 14
shesha

rrVeteran

Kuwait

My Posts: All  Forum  Topic

Cassat any feedback ?

Zero bubble....

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
10-16-2005 09:31 PM  13 years agoPost 15
cassat

rrVeteran

Alberta,Canada

My Posts: All  Forum  Topic

Firing
I have the engine firing. It has to be a few clicks above idle to start.
Once it starts, then it shuts down almost immediately just like you said
I will study the pictures and check some more. It is only just above zero degrees here today because of a bad storm.

Cassat

PM  EMAIL  GALLERY  Attn:RR  Quote
10-17-2005 01:25 AM  13 years agoPost 16
cassat

rrVeteran

Alberta,Canada

My Posts: All  Forum  Topic

Engine Tuning
Well, the good news is that the engine is running as of this afternoon after lots of fiddling. I also found out that the engine can run backwards.
That was a surprise because nobody had mentioned it. The blades seem to be out of track quite a bit.

Cassat

PM  EMAIL  GALLERY  Attn:RR  Quote
10-17-2005 01:43 AM  13 years agoPost 17
dkshema

rrMaster

Cedar Rapids, IA

My Posts: All  Forum  Topic

If the 32 runs backwards a lot, or starts normal, then reverses itself at idle, and is hard to find a decent setting on the needles, make sure that you still have the head gasket between the top of the cylinder and the head.

The 32 is usually a pretty well-behaved little motor and rarely starts or runs backwards. Leave out the shim (head gasket), and it can turn a decent running, easy to tune motor into the 32 from hell.

Dave

PM  EMAIL  GALLERY  Attn:RR  Quote
10-22-2005 02:41 AM  13 years agoPost 18
shesha

rrVeteran

Kuwait

My Posts: All  Forum  Topic

Just a note that mixture screw setting is 2 and 1/2 from lock position.

Meaning screw the mixture idle screw in until it stops turnings as your starting point, then open it up 2,1/2 turns as the factory defualt standard. os32 carb20c as per the manual.

Zero bubble....

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
10-23-2005 02:51 AM  13 years agoPost 19
Chief_USN

rrKey Veteran

Chesapeake, VA

My Posts: All  Forum  Topic

Cassat,

You never mentioned how well your compression is. You might have good compression on a cold engine, but as soon as it warms up the clyinder will expand and you will lose compression causing a hard time to keep it running. The best way I found to check it is to remove the piston and sleeve and push the piston up through it. The cylinger has a natural taper to it which expands when it heats up. On a cold piston and sleeve the piston should get tight just above the exhaust ports. Don't use alot of force to push it up. It should get to the point where you can't push it more than a couple mm's above the exhaust ports. If you can, it might be a sign of a worn piston and sleeve. If it comes out the top of the sleeve it is definately bad.

Also check your packings on your needles. if one is worn, it won't matter how many turns you have on them. they will leak throwing your settings off.

G/L and let us know what you find out.

Chad

Team HeliProz 12-14
US Navy Chiefs...Unity, Service, & Navigation to the Fleet since 1893

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
10-23-2005 03:34 AM  13 years agoPost 20
cassat

rrVeteran

Alberta,Canada

My Posts: All  Forum  Topic

Original Engine
This is all very good information. Just to clarify...the original engine was
an OS 32 ringed which is in pieces now.The cylinder and ring is in next to new shape. There was a build up of brass sulphide material around the needle jets from not being run for a while. I think this was the only fault.

The new engine is the OS 32 ABC version, which runs quite nicely. Just takes a bit to get it warmed up here in our colder weather.

Cassat

PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 1 page 1137 views POST REPLY
 Print TOPIC  Make Suggestion 

 3  Topic Subscribe

Tuesday, December 11 - 7:55 pm - Copyright © 2000-2018 RunRyder   EMAILEnable Cookies

The RC discussion world needs to consolidate. RR is now one choice for that. Its software is cutting edge. It hosts on-topic advertising. Help RR increase traffic buy making suggestions, posting in RR's new areas (sites) and by spreading the word.

The RunRyder Difference

• Category system to allow Rep/Vendor postings.
• Classifieds with sold (hidden) category.
• Classifieds with separate view new.
• Answer PMs offsite via email reply.
• Member gallery photos with advanced scripting.
• Gallery photo viewer integrated into postings.
• Highly refined search with advanced back end.
• Hosts its own high end fast response servers.
• Hosts thousands of HD event coverage videos.
• Rewrote entire code base with latest technology.
• No off-topic (annoying) click bait advertising.
Login Here
 New Subscriptions 
 Buddies Online