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RE: New 53cc engine now available - 1/22/2009 6:43 AM   
rctom



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That's sometimes a symptom of overheating. Do you have plenty of airflow over the cylinder? Don't forget that you need plenty of outlet area to allow air to escape.

Try opening the high speed needla about 1/2 turn. It will reduce power a bit but should make it run cooler, if that solves the problem then you need more cooling air flowing through.

TF

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RE: New 53cc engine now available - 1/24/2009 5:25 AM   
texaspyro


 

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Ok, I just had a chance to take a look at the plane today. I got my temp gun and figured Id start it and run it up on the ground to see if I could get it to emulate the problem it was having in the air with it just quitting like that. Sure enough after 2.5 mins it quit, just like it did in the air! No warning, just quit! So I grabbed the temp gun and measured it to see if maybe it had over heated already. The head temp was 117 degrees Fahrenheit. Not to hot by a long shot. I proceeded to take the cowl off and look a little closer. I measured the batt voltage with and with out load before and after the switch, so I know the ignition is getting power. Next I pulled the spark plug and connected it to the ignition wire, spun the hub... no spark! Messed with the wires, still no spark. I let the ignition "cool down" for 30 mins tried it again... Still no spark this time. Is there anyway to check the leads coming off of the motor to see if the ignition module is getting signal from the sending until on the hub? Do I possibly have a bad Ignition module? This one is brand new and hasn't had a full tank of fuel through it...

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RE: New 53cc engine now available - 1/24/2009 6:33 AM   
Tired Old Man


 

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Turn the ignition on and if it sparks just once and then no more you have a problem. Ignitions, like anything else, are not always perfect and sometimes something happens. It could be a hall sensor, it could be the ignition, it could be the cap.

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RE: New 53cc engine now available - 1/24/2009 6:45 AM   
dredknot


 

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Texaspyro I had a problem just like that, it turn out to be my electric kill switch.Have you tried to plug the battery into the ignition with out the use of any switchs.
I found out that sometime the switch worked and sometimes it did not.I 2 was sure my ignition was getting power

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RE: New 53cc engine now available - 1/24/2009 7:20 AM   
texaspyro


 

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Yes I have bypassed the switch. Same results, no sparky

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RE: New 53cc engine now available - 1/24/2009 7:23 AM   
rctom



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Sure, anything is possible. It's highly unlikely that the pickup is bad, I've never seen one fail. More likely that unit has some problem, I'm happy to exchange it for you.

TF

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RE: New 53cc engine now available - 1/26/2009 3:53 AM   
texaspyro


 

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Swung by Tom's yesterday and swapped out ignition modules for the TOC. Installed it last night and she started right up! I got a full day of flying today! This motor paired with the Wildhare 50cc Sukhoi fly like a dream! This plane fly so well! It actually makes me look like a better pilot! Tom's support is second to none, he stands behind every product he sells. I cant wait to grow out of this one and get the 35% Sukhoi!

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RE: New 53cc engine now available - 1/26/2009 4:07 PM   
thevirginian


 

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quote:

ORIGINAL: texaspyro

I cant wait to grow out of this one and get the 35% Sukhoi!


Go get it, texaspyro. I did it the other way around. I got the big one first. Love both of them equally. You 'll love the the way the big one behaves. Not as "squirrly" as her little cousin.

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RE: New 53cc engine now available - 1/31/2009 7:57 AM   
ddotson


 

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quote:

ORIGINAL: rctom


quote:

ORIGINAL: KevenLS

does anyone have a pic of the hop up kit? Does the hop up kit use the old reed block or is it a whole new reed block?


It's a whole new reed block.

TF



Thinking about hop up kit. Looking at my 3mm engine the carb has no external pulse nipple. I am sure the kit does not include carb???. BTW my carb and reed block has been off a while, just getting back to project. Need to know which way reed block mounts on inverted engine. Seem to remember one or two screws securing actual reeds. Should these be up or down, in other words screws to crankcase or cylinder. Not concerned about pulse port in reed block as I am modifying it similiar to hop up kit with external pulse line. So carb can be mounted in either position without concern about pulse port opening. Since I will have to add a nipple to the carb I guess I sort of answered my first question. Anyway need info on reed block position having read a lot about rotating the carb AND reed block for better performance. I have been expereniceing same problems mentioned in thread.
Thanks, Don

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RE: New 53cc engine now available - 1/31/2009 6:57 PM   
rctom



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I have found that the engine runs better with the needles pointing towards the cylinder head which is opposite the way it comes from the factory,

HOWEVER

I don't know if the direction of reeds themselves matter, as I have never changed only the carb, I always change both parts as a unit. The reed block can go either way if you use an external pulse line.

We'd like to hear what happens.

TF

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RE: New 53cc engine now available - 1/31/2009 6:58 PM   
Sandy69


 

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you do need to drill and tap for a pressure nibble on the side of the carb....if I can do it anyone can....picture is quite clear on location. Tom recommends rotating the carb so the arms are at the top, I did so (minor rebuilt of throttle and choke connections from servoes) Kit includes a new reed block - thicker to hold the V shaped double reed, and reed block is pre-drilled with pressure nipple installed.

Immediate increase of 200 RPM but I'm still running a bit rich

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RE: New 53cc engine now available - 2/8/2009 3:12 AM   
texaspyro


 

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Quick question for y'all. I'm running the TOC 53 in my WH Sukhoi. I installed the hop up kit when I built the plane when the engine was new. Ive just now burned through my first gallon of fuel running the recommended 32:1 oil ratio. Im running a bunny 23/8 prop turning 6300-6350 rpm. My question is, is that a pretty normal rpm for this prop engine combo? I am just now starting to experiment with different props. Thanks for the help.

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RE: New 53cc engine now available - 2/8/2009 3:41 AM   
Ruski31


 

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Your rpm should be more like 6700.

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RE: New 53cc engine now available - 2/8/2009 4:25 AM   
Tired Old Man


 

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That's a bit low. Have you tuned the engine at all? If not it's past time to do so.

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RE: New 53cc engine now available - 2/8/2009 5:39 AM   
texaspyro


 

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Yes, i messed with the tuning for about an hour this afternoon. I saw very marginal improvements.

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RE: New 53cc engine now available - 2/8/2009 7:02 AM   
cap10b



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Texaspyro,
Run it at 32:1 for a few more gallons its just not loose yet. The power will come on. I run a Menz Ultra 22X10 three blade at 6500. Thats allot of prop and the motor loves it and it does not lug or get hot.

jds




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RE: New 53cc engine now available - 6/30/2009 5:13 PM   
Sandy69


 

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Tom, I've recently been having trouble getting my engine to start when cold, doesn't seem to be sucking the fuel up the line. I found the 2 carb bolts were slack by about 1/2 turn each...could that be the problem? Once we got the engine running and it warmed up it still runs great.

The weather is not cooperating so I haven't been able to try it and find if it helped.....

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RE: New 53cc engine now available - 6/30/2009 6:20 PM   
rctom



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Loose carb bolts can definitely cause a problem like that.

TF

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RE: New 53cc engine now available - 6/30/2009 6:27 PM   
Sandy69


 

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thank you sir

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RE: New 53cc engine now available - 7/12/2009 10:48 AM   
flybyme



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Hi Tom, or anybody running a toc 53mm, I have about 3/4 of gallon thru my engine, and I'm getting aroung 6500 rpm, but on my maiden, as soon as my Edge V2 reached about 50 feet the engine died, I found that I had both needles set at 1 1/4 turn. I had great idle and good transition but it quit on my second attempt also....dead stick landing.....slid on spinner, nose to the pavement, no damage. After opening the high speed needle about an eighth of a turn, I took off again....4 minute flight, it was great, until I made a left turn and....dead stick, cut off again. I am near repairing this tough bird.....I Love It, but I need some guidance on keeping it running. I flipped my reed block and carb probably unneccessarily, but I don't want to flip it back for fear of stripping the threads of the carb bolts. I'm turning a bunny 22x8 prop, at 32:1 fuel ratio, with a good plug, fully charged batteries, and it runs great on the ground, idling and transition. I pulled up some instructions from BCMA and it said to start out with (H) at 2 turns and (L) at 1 3/8 turns, and adjust only between 1/4 turn either way. That didn't work either. This is my first gasser and I'm close, but where should I start with the needles and which way should I go?

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RE: New 53cc engine now available - 7/13/2009 8:05 PM   
Sandy69


 

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I'm probably wrong, but I just checked my carb for you............H is out 2 1/4 turns and idle is out 2 1/2.........as I say I'm likely a minority but that where mine is, and engine runs absolutely great.

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RE: New 53cc engine now available - 2/6/2012 2:20 AM   
grossy2


 

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Can anybody tell me what Walbro Carb # is on this engine?
I'm after the P/No for the Idle & Power needle.

Cheers
Grossy

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RE: New 53cc engine now available - 2/6/2012 5:31 PM   
Sandy69


 

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10 - WAT is the number on my kit

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