Walt and Sage

Will the ignition operate on 6vdc ????

P40 Maniac

My Feedback: (15)

Yes Have one here now and requires a 6v battery.

togatoga

My Feedback: (42)

The CRRC 50 pitts muffler is an exact fit for this engine. The support is easily taken care of by attaching it to the adjacent standoff with a metal bracket.

skyguy04

So... i just got one of these 52cc FTL/TGY engines. I tried running it first with the stock spark plug. It ran OK, but I decided to take the advice from this forum and replaced the spark plug with a resistor type (BPM4R6). On the first go, i choked the engine and watched the gas come up to the carb after a few flips. After it hit the carb, next flip it fire up and died. Now I can't seem to get it to do anything. Took the choke off, tried idle, 10%, 15%, 50%, throttle... nothing. Choked again, still no fire. I'm all "flipped" out. :-) I'm pretty sure it's flooded as gas is coming out of the carb.

This is my first gasser, so I'm sure I"m just being a n00b and not doing something right. One thing i thought about was the spark plug gap. I wasn't sure what to set it to, so i left it at what it was. Not having a manual for this engine, I'm not sure what the specification are.

Any help would be great!

skyguy04

OK OK, i read the "Gas for newbies post". Please don't flame for me asking an open-ended question. What i am really looking for is the proper GAP for this spark plug on this engine. If you know that, please do tell. Thanks!

garbo1

My TGY 52 cc after 1 gallon gasolin 6500 rpm,prob 22x8 bambula, first start 5900 rpm, my are very very happy

togatoga

My Feedback: (42)

You could try the champion RDJ7Y or NGK BPM6RF plug without need for any adjustment.

wrstew

My Feedback: (30)

Skyguy04- try .020 to .025 as a starting point. In my days with Volkswagens (remember the original beatle?) I found that if you filed the ground electrode so the end is half way over the center electrode, it started much better, with no adverse effects. Worth a try......let us know.

sailerf2

I got this motor around Christmas time, and now that it's warmer I really want to fly it on my GP Reactor, but I can never get this engine running. I've never been able to get it running right. The few times I have, I've flown it, but cant trust it. Anyone have any help?

Also I will admit, I am new to Gasser engines, this is my first, but on the engine there is a blue line, what is that for?

Kcripto

My Feedback: (1)

see picture in post #103, without that, carb. is not able to suck fuel from tank.

garbo1

My TGY 52 in today 6800 rpm...propeller bambula 22x8 is very very good

rdrude

Ok, need some help. Got my 1st gallon through the engine with no problems... matter of fact it ran great. Well, I took off last weekend, and engine died in flight right after takeoff. It has never done that before. Dead sticked it and found that the spark plug came loose. Tightened it up and now I can not get it to go above half throttle without dying. Idle and up to half sitck is just fine. Any ideas? I have adjsted the needles with no luck. What gives?
Rob

captinjohn

I would use a dremel cut off disc to cut the electrode shorter. What ever you do...make sure no metal grit gets in spark plug shell. Wash with carb cleaner and blow sparkplug very clean...a must.

Walt and Sage

I Purchased the 52 for a friend of mine and it has a washer
that goes UNDERthe spark plug to seal and keep it tight...

His motor runs GREAT for the money...

Only thing missing is a manual that answers question like this..
Walt...

jerryj39

My Feedback: (30)

Ok i'm new to gas engines and getting ready to place an order for a TGY 52. I'm going to need a 3 to 3.5 inch spinner. Question, how do you attach a spinner to these gas engines? Drill the spinner backplate? Need an adapter? Probably simple, but if you've done it???? I've always just used plastic on my glow engines, looks like these need aluminum.

togatoga

My Feedback: (42)

Never ever use the supplied plug.It is a non resistor type i think because when I first ran it stock , it caused massive interference.

jerryj39

My Feedback: (30)

Buyers Beware
Mounted my TGY52 on a test stand and started break in at 3000 RPM. After rumming about 20 minutes it started viberating and screeched to a stop. Inspection revealed the crankshaft had moved reward and the drive hub was rubbing on the crankcase. I removed the hub and pulled the crankshaft back forward. Ran it again and it did the same thing in about 1 minute. Now I have to send it back at my expense of $42.40. So having over $80 in shipping and now I have no engine this is not such a good deal. Hobbyking you have lost a customer![/size]

Charles Thomas

My Feedback: (43)

How much more power will the TGY-52 put out over the FTL-45??? Got a FTL-45 and getting ready to order another one and trying to pick between the FTL-45 or the TGY-52.

Thanks,

Charles

willig10

I have a couple of questions. This engine is going into my Morrisey Bravo when the build is complete.

1. Did any of you get the engine with the cylinder painted black? I have looked at some of your posts and see it in natural finish. Mine is Black.

2. What is the deal with the spark plug? I have not run mine but would like to know what all this grinding is about and does it work? Anyone done this?

3. The prop bolts. Is anyone just using the main brop bolt or are you using the main plus the 3 smaller bolts?

4. Does anyone have a drill jig for the bolts?

5. What voltage and battery size for the ignition unit?

6. What bolt size for the spinner attachment?

Thanks in advance

Glenn

ahicks

My Feedback: (2)

TGY-52 guys stuggling with the long carb. adapter that moves the carb out away from the cylinder so far, may be interested to know that the same part for the CRRC GF50i is much shorter, and an exact fit! I bought mine for 8.00 or so from gravitybites, who had it in stock, at my door in 4 days.

Not liking the stock spark plug and "shim" that comes with these engines, I was able (with some very capable help) to come up with a Champion part number that uses a conventional gasket arrangement - RCJ7Y. The RDJ7Y is the number often given that matches the original with the tapered shoulder. Haven't run it yet, will get back when I get some time on it. Here's the link discussing what I was thinking of in more detail, pics of the 2 different plugs, w/Champion cross reference charts -

http://www.rcuniverse.com/forum/m_9613247/tm.htm

Edit: Regarding the swap to RCJ7Y spark plug above - don't make the same 3 dollar mistake I just made. The metal boot on the end of the spark plug wire will not fit this plug. It's WAY too small. The end will have to be changed to allow the use of this plug.

Prop shaft threads - 10mm x1.5 (coarse)
TruTurn prop nut adapter TT-0102-A (10mm x 1.5 - for use with bolt head inside drive hub).

willig10

All:
I am putting this engine in my Morrisey Bravo.

First engine run this morning. Here is what I have done so far.

1. Ryobi 2 cycle oil 32:1 mixture.
2. 20x8 Zinger prop
3. Factory plug
4.First run idle was 1800 RPM
5. Second run idle very reliable at 1650 - 1670 RPM.
6. I did a very brief (Maybe 2 seconds) of a full throttle burst. I saw 7700 on the tach. Could have been erroneous but with me on the test stand it was trying to pull me out of the garage.

So far this engine looks to be very impressive.

More later

Glenn Williams

ahicks

My Feedback: (2)

Sounds great!

Mine is replacing a Quadra 42 on a Giant Sportster. Between the difference in weight of the engines themselves, as well as the tail ballast I'll be able to off load, hoping for 1.5 - 2lb weight reduction. Half again the horsepower is just a bonus. I had been flying the Sportster on an APC 20x8. Was planning on using that to start the break in on this engine as well - with the need for a 22" prop anticipated soon. I don't want to run a lot of pitch with this plane. It's plenty fast enough with the 8" prop on it. Chomping at the bit to get this thing back up in the air, but a certain muffler manf. is holding me up.

BTW - had the engine all apart while I had the wrenches in hand swapping the carb adapter. Thought I would rinse it out to see what came out of it (beacuse of earlier posts), and that was a waste of time. There was a little extra silicone on the base gasket, right in the transfer ports, and the carb adapter gasket had a little excess, but really, nothing to get upset about apparent anywhere. Not talking huge gobs here. Just sayin...

willig10

Well just for fun I went and got my Morrisey Bravo cowl out, and it covers the entire engine carb and muffler. I can actually leave the velocity stack onand have room on either side. This is pretty cool.

Anyway after the 3rd run (all my runs are 30 minutes except for the first start, it was 15 minutes). I saw a low idle of 1550 RPM but engine seemed to be more happy in the 1620-1640 range. It starts very easily hot or cold by hand.

I have adjusted the low end needle to where I am just barely seeing a whisp of smoke at idle. I will lean that out as the engine breaks in.

By the way, when has enough time passed by (running time) when you can go to full throttle and adjust the high end needle? I have run mine exactly 1 hour and 15 minutes.

Very impressed with this engine.

Thanks
Glenn

ahicks

My Feedback: (2)

Different strokes for different folk, OK? Saying nothing other than this is the way I do it.
I plan on trying to establish reliable needle settings after a couple of 5 minute heat cycles. Once comfortable I'm able to do that, I'll finishing the break in while airborne. Full power in short bursts as soon as I trust the installation/airframe, letting it cool between them while still in the air at more conservative throttle settings. Will likely continue that for the first day of flying. Second day, will warm it up carefully and start flying just shy of what I normaly would. 3rd day will have no more mercy. From there, will likely start playing with some different props and needle settings to see what it does, likes?

willig10

My engine came with an instruction manual but only mentions flying the engine after 2 hours run in. I guess I can assume that the 2 hour limit is the benchmark to go full throttle?

Oh well it doesnt matter right now as I am out of town for at least a month.

Glenn