ok guys i just got a OS max glow engine from a swap meet the size number has been erased scrached somehow so i need help here before i instal it. the back plate has a # its 2907 i do have another OS 40max FP with the # in the back plate 3107 if anyone knows please i need to know what size this engine is... thank you

Fermin

http://www.osengines.com/parts/discontinued.html

Burlington?

Oh boy...

You didn't think to ask the seller what size the motor was? Or perhaps why the displacement markings were chiseled/filed/worn off?

I guess a picture would help decide what motor you bought.

hey for 5$ who would complain....lol yes it was at the burlington swapmeet....lol i did asked the guy and he said it was either an )S25 or an OS32 i compared it to a 40 and it looks the same but the back plate is diffrent #

Is it a BB or plain bearing engine? What model carb? #'s should be there on the front or back side......Can you post a pic?

I can do the johnny carson thing and hold an envelope up to my forehead,.............that always works. LOL

these are the best i can do for now
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ok the second pic the back plate has the # 2907 and the carb says on the back 3H and below it it has a #2 and it is BB

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You paid only $5 for that engine? You lucky rascal. My guess is that it is either an SF or F SR series. I'm leaning toward the SF at the moment.


Ed Cregger

lol yeah it was at the bottom of a pile of junk and i asked the guy what size it was and he said some guy used it for racing thats why the #s were scratched off.. i think is a bunch of bull but i still paid 5.00 he wanted 15.00 and i kind of talked him down due to the #s being scratched...lol the engine has awsome compression i just dont know the size.....

It might also be a .32F ABN engine from the early Nineties. They are really sweet running engines.

What size prop is mounted on it? Did it come with that prop?


Ed Cregger

no it didnt come with a prop thats a APC 8x5

Went ot the OS site and it indicates that the 32F ABC came with a 3H carb standard. The .28 came with a 2H.
The engine is out of focus but pretty shiney, looks like you scored a nice deal there..........

Cool thank you guys i really appreciate it anyone has anymore info i would appreciat it i also scored 4 engines (ASP61-2x-GP46,GP61 4 servos and hinges for 40.00... then i got an entire plane an Armadillo with a GP 61 engine for 15.00 i also got a webra 120 Engine with prop and custom exhaust for 15.00 and to top it all i got a box with 10 APC- 5 black props, a gas caddy (new in box), 2 boxes of bolts, 4 RC videos, 4 engine mounts, a hangar 9 iron, monoko(3 rolls) and all kinds of odds and ends for 5.00 i sold about 50.00 so i pretty much made out like a bandit
By the way we are hosting a swapmeet in MAY go to our website and check us out anyone is welcome to come fly with us let me know......
www.RiversideRC.com

Well Guys as some of you know sat i went to a swapmeet and got a nice deal on what i thougt it wasa plain OS.25 RCDUDE7 said it was OS .32F so i modified the LB to make the OS.32 fit and installed it........... WOW what a diffrence it went about 5 feet up elevator and STRAIGT UP she went!!!!!!!! im totally happy with it NOW there is POWER!!!!!!!!!!!