Starting glow engines.

Starting glow engines.
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All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Glow Engines >> Starting glow engines.

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Starting glow engines. - 2/28/2004 12:57:06 AM

Zpat

Posts: 558
Joined: 11/9/2002
From: Lima, OH,
Status: offline

I have 3 glow engines that only start in reverse. Webra .40, .50 and a MVVS .77
The engines run great after I blip the throttle a few times. Sometimes I have to spend to much time blipping the throttle.

An electric starter is out of the question. Is this the nature of the beast or am I missing something?

Post #: 1

RE: Starting glow engines. - 2/28/2004 1:21:45 AM

Doug D.

Posts: 1166
Joined: 10/10/2002
From: Wilson, NC, USA
Status: offline

Why is the electric starter out of the picture? Just wondering ?
Have you tried flipping the prop backwards, lightly? This will sometimes cause the engine to run in the proper direction. This seems to work good for some folks.

(in reply to Zpat)

Post #: 2

RE: Starting glow engines. - 2/28/2004 1:26:26 AM

Zpat

Posts: 558
Joined: 11/9/2002
From: Lima, OH,
Status: offline

I don't carry any high tech stuff, just a chicken stik.

I should have mentioned that flipping them backwards is the only way they will start.

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RE: Starting glow engines. - 2/28/2004 1:51:46 AM

BSC

Posts: 46
Joined: 5/29/2002
From: Elmhurst, IL,
Status: offline

Are you flipping them through compression, or bouncing off compression? I start mine with a back flip, but I just bounce it off of compression so it starts in the correct direction.

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RE: Starting glow engines. - 2/28/2004 2:09:45 AM

a65l

Posts: 1479
Joined: 12/7/2003
From: va veach, VA, USA
Status: online

Have you tried priming them less, so they start leaner?

_____________________________

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All others pay cash.

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RE: Starting glow engines. - 2/28/2004 3:31:31 AM

rik1024

Posts: 106
Joined: 10/31/2002
From: RAWLINS, WY, USA
Status: offline

A $20 starter and a 12 volt battery is not very hi tec . Just about one step above in door plumbing.

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Post #: 6

RE: Starting glow engines. - 2/28/2004 12:10:20 PM

Zpat

Posts: 558
Joined: 11/9/2002
From: Lima, OH,
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I do have indoor plumbing.

I decided to downsize a long time ago. No more 100 lb flight boxes on wheels.

Instead of flipping it through I'll try bumping it.

(in reply to rik1024)

Post #: 7

RE: Starting glow engines. - 2/28/2004 12:32:43 PM

downunder

Posts: 3191
Joined: 10/10/2002
From: Adelaide, AUSTRALIA
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I agree with a65l..an engine hand starting in reverse is a sure sign of overpriming (flooding). Usually this only happens on the first start of the day when you tend to overprime to get it feeling nice and loose with that slightly wet sound. On the second flight most engines just need to have the fuel drawn through to the carb. Figure out the correct prime and it should start first flick....forwards

(in reply to Zpat)

Post #: 8

RE: Starting glow engines. - 2/28/2004 1:55:55 PM

Mettler1

Posts: 439
Joined: 1/12/2002
From: Grand Rapids, MI, USA
Status: offline

quote:

ORIGINAL: Zpat

I do have indoor plumbing. I decided to downsize a long time ago. No more 100 lb flight boxes on wheels.

Instead of flipping it through I'll try bumping it.

I'm with you Pat. "I don't need no stinking starter" Like you, I like to travel light and I just hate to goober up my new spinners with a rubber ring. Especially a pricey Tru Turn spinner!!
With 2 strokes I choke the engine 3 or 4 times,flip it a few more to get the fuel to the cylinder and then connect the glow plug. Now the next step is getting a bump. Grab the prop and turn it over to compression until you feel a bump. When you feel the bump it's ready to start. Flip the prop and it should start. If the engine is flooded and quits you HAVE to get the bump again. The secret with a 2 stroke is to get a bump and then it will start on the first flip.
No bump? Not enough fuel or flooded and will kick back when flipped.

Above 50 degrees I get first flip starts most every time. Below 50 I may have to work at it a little harder. If all else fails try flipping backwards. When it's too cold I stay home!

Used to fly control line combat in the old days and when the countdown hit zero you better get a first flip start or you were behind in points right away. NEED THE BUMP!!

_____________________________

There's never enough time to do all the nothing you want!!

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Post #: 9

RE: Starting glow engines. - 2/28/2004 4:42:01 PM

Zpat

Posts: 558
Joined: 11/9/2002
From: Lima, OH,
Status: offline

I used to bump a G62 and it about took my hand off. From that point forward I've had the "bump fear".

I'll try cutting down on prime and "bumping it".

Thanks for the ideas.

Happy flying!

(in reply to Mettler1)

Post #: 10

RE: Starting glow engines. - 2/28/2004 6:27:13 PM

Mettler1

Posts: 439
Joined: 1/12/2002
From: Grand Rapids, MI, USA
Status: offline

Pat, I don't have any gas 2 strokes. Probably with spark ignition a different animal with ignition advance. All I know is the bump works on glow 2 strokes. With 4 strokes the bump works a little differently.

Pat, here's my proceedure for starting 4 strokes. Everyone has a favorite technique for starting engines. This is mine. I'm sure there are a 100 others.

I have two OS 91fs's that I run fully inverted. They run great in that position. As with all my idle adjustments I do it when the tank is over half empty. I make real sure I get it right before I put the cowl on. Been flying them for two years and haven't had to change the idle setting yet. When starting the engine I have to set the idle trim high as the idle needle is too rich on a full tank of fuel but when I land at the end of the flight bring the idle trim down to 3 or 4 clicks below center and the idle is perfect for landing. No dead stick landings yet.

If you use an electric starter you have to make sure there is no extra fuel in the cylinder head. With a four stroke just turning the prop back and forth will open the exhaust valve and dump the excess fuel out the muffler. With a two stroke you have to turn the engine right side up.

I don't use an electric starter so I like to flood the engine, then turn the engine over a couple of times to get rid of any excess fuel. Then I connect the glow plug and turn it over 'till I get a bump. I know the engine will backfire if I try to flip the prop counter clockwise so I turn the prop clockwise untill I feel compression. Then I turn the prop counter clockwise 180% and slap the prop clockwise. The engine back fires and it's running in the right direction. I usually get first flip starts with this procedure. OH, and I use a HEAVY leather glove to slap the prop!!!

I'm a stubborn old control liner that refuses to buy an electric starter. Thought about it a couple of times but just don't want to carry the extra weight in my flight box. Also don't like to put a rubber ring on my shinny new spinners especially a pricey Tru-Turn. Hope I wasn't too wordy. Tom

I get extra fuel in the engine by standing the plane on it's nose, put some fuel in the muffler and rotate the prop back and forth to get the fuel into the cylinder. Then I set the plane down and rotate the prop again to get any excess fuel out. Then I do my starting proceedure as outlined above. This is for 4 strokes only!!

< Message edited by Mettler1 -- 2/28/2004 2:01:57 PM >

_____________________________

There's never enough time to do all the nothing you want!!

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Post #: 11

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