RE: gas fuel with glo plug no ignition  
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RE: gas fuel with glo plug n... - 9/3/2008 3:39:45 PM   
rangerfredbob


 

Posts: 697
Joined: 7/2/2005
From: McMinnville, OR, USA
Status: offline 		thanks captain and rysium, I think I might give the wheel collar idea a shot, sounds simple and effective

(in reply to captinjohn)
       Post #: 2301

RE: gas fuel with glo plug ... - 9/3/2008 4:40:57 PM   
av8tor1977



Posts: 2778
Joined: 5/3/2003
From: ASH FORK, AZ, USA
Status: offline 		I tried this once, and the solder melted. You have to silver solder the wire, or put the wire into the hole in the wheel collar along with the glow plug post, then clamp it down.

AV8TOR

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       Post #: 2302

RE: gas fuel with glo plug n... - 9/3/2008 4:48:41 PM   
RysiuM



Posts: 1409
Joined: 4/22/2003
From: Elk Grove, CA, USA
Status: offline
quote:

ORIGINAL: captinjohn
...I would also place a small plastic washer so wheel collar does not short out on plug hex...


Make sure this is the plastic, that doesn't melt. The glow plug gets very hot (over 300F). Silicon fuel tubing will serve well here.

< Message edited by RysiuM -- 9/3/2008 4:50:12 PM >

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(in reply to captinjohn)
       Post #: 2303

RE: gas fuel with glo plug ... - 9/4/2008 8:31:43 PM   
rangerfredbob


 

Posts: 697
Joined: 7/2/2005
From: McMinnville, OR, USA
Status: offline 		anyone have any experience with the Hangar 9 4 stroke plugs? I found them at hobbytown USA for $7 instead of $9 for the OS F (they didn't have any F's)

if these plugs work out, the engine was running fine without full time glow until it blew so I'll give it another shot since these are only about $2 more than standard plugs

(in reply to RysiuM)
       Post #: 2304

RE: gas fuel with glo plug ... - 9/4/2008 11:39:11 PM   
andrew66



Posts: 543
Joined: 1/6/2006
From: Brandon, MB, CANADA
Status: offline 		i used the hangar 9 ones with good success. i didnt get any rpm numbers, and i never bothered to compare it with any others, but my engine ran pretty good

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cheers to old buggers! they paved the way for us.

(in reply to rangerfredbob)
       Post #: 2305

RE: gas fuel with glo plug n... - 9/5/2008 2:53:48 AM   
KI8FR


 

Posts: 882
Joined: 2/18/2004
From: Ovid, MI, USA
Status: offline
quote:

ORIGINAL: RysiuM

quote:

ORIGINAL: captinjohn
...I would also place a small plastic washer so wheel collar does not short out on plug hex...


Make sure this is the plastic, that doesn't melt. The glow plug gets very hot (over 300F). Silicon fuel tubing will serve well here.



Is most glow fuel tubing silicon? And how much heat will it take before it gives out?

Paul

(in reply to RysiuM)
       Post #: 2306

RE: gas fuel with glo plug ... - 9/5/2008 3:23:16 AM   
rangerfredbob


 

Posts: 697
Joined: 7/2/2005
From: McMinnville, OR, USA
Status: offline 		all glow fuel tubing is silicone, and it's good until about 550F if I remember right

thanks for the feedback on the hangar 9 plugs, I'm glad I got 3 of the buggers then , didn't want to get too many if they didn't work with good success.

< Message edited by rangerfredbob -- 9/5/2008 3:25:01 AM >

(in reply to KI8FR)
       Post #: 2307

RE: gas fuel with glo plug ... - 9/5/2008 5:41:59 AM   
rangerfredbob


 

Posts: 697
Joined: 7/2/2005
From: McMinnville, OR, USA
Status: offline 		welp, ran it tonight, too dark for the tach, but am impressed on how it runs, starts right up with the electric starter (being lazy and playing with my new dynatron)

was dark and in front of my townhouse so I didn't tune it for power, just ran it for about 30 seconds, so I also didn't pull the fish scale out for thrust

I'm using a G230 carb since it was the only carb with near a 1/2" venturi, the G230 is the car version, and it needs a new ring, and I'm keeping the engine as a spare for my Traxxas monster buggy so it most likely won't get converted.

(in reply to rangerfredbob)
       Post #: 2308

RE: gas fuel with glo plug ... - 9/9/2008 1:55:52 AM   
rangerfredbob


 

Posts: 697
Joined: 7/2/2005
From: McMinnville, OR, USA
Status: offline 		just got back from the field, too gusty to feel comfortable maidening the thing (by myself that is), but it ran great, 7500rpm out of the APC 18 8 prop, according to thrust-calc that's like 17.5lbs of thrust which should propel the 11lb plane well

(in reply to rangerfredbob)
       Post #: 2309

RE: gas fuel with glo plug ... - 9/9/2008 4:42:14 AM   
captinjohn


 

Posts: 6287
Joined: 1/25/2002
From: Hesperia, MI, USA
Status: offline
quote:

ORIGINAL: rangerfredbob

just got back from the field, too gusty to feel comfortable maidening the thing (by myself that is), but it ran great, 7500rpm out of the APC 18 8 prop, according to thrust-calc that's like 17.5lbs of thrust which should propel the 11lb plane well

What thing...airplane and engine do you have to maiden? Capt,n

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       Post #: 2310

RE: gas fuel with glo plug ... - 9/9/2008 6:01:45 AM   
rangerfredbob


 

Posts: 697
Joined: 7/2/2005
From: McMinnville, OR, USA
Status: offline 		just an ultra stick lite 120, I apparently haven't mentioned that part in this thread yet... I should have no problems maidening it as I've been flying the mini ultra stick for about a year and a half until I plowed it into the ground a couple weeks ago (washed out the tail while heading straight down at 30' altitude 1/2 speed), I've just never flown anything that big and expensive... and haven't reduced the throws down to a reasonable amount for a maiden (little bit of programming left). I have the McCulloch 32cc mounted to the nose, mild port as I mentioned earlier just getting rid of most of the rib in the exhaust port and some of the finger in the intake. The plane balanced out with the servos moved to the back and the 6 cell 4200mah battery (C cells) mounted half behind the stock radio tray and the fuel tank under the wing, 10 pounds 9 ounces dry weight and 17.5 pounds thrust (if the calculator is right, next time I have it running I'll pull the scale out). if I wasn't alone at the field today it would have been in the air.

(in reply to captinjohn)
       Post #: 2311

RE: gas fuel with glo plug ... - 9/17/2008 4:21:18 AM   
andrew66



Posts: 543
Joined: 1/6/2006
From: Brandon, MB, CANADA
Status: offline 		i have a little question about running the glow engines on gas with the plug powered all the time. would the evolution .46 abc engine do well on this, or should i stick to a ringed engine? i want to put an actuall gas carb on, but am wondering if they are too big for these engines? i am intending on putting it on the stubby that im building, and want the good fuel economy and the advantages of having a pump so i can put the tank right on the cg.
any input is greatly appreciated

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cheers to old buggers! they paved the way for us.

(in reply to rangerfredbob)
       Post #: 2312

RE: gas fuel with glo plug ... - 9/17/2008 12:57:26 PM   
thisoldman


 

Posts: 89
Joined: 11/3/2007
From: , FL, USA
Status: offline 		93 pages of info.. have not seen that much in long time... Has anyone been runing 4 stroke engines on gas. If so how are they doing?. Have several and have thought about it, but curious if anyone on here is doing it. See mostly 2 stroke engines.

(in reply to andrew66)
       Post #: 2313

RE: gas fuel with glo plug ... - 9/17/2008 4:10:46 PM   
captinjohn