Nostromo1

Hello,
Iwould have preferred the OS gt22 having the usual stand-off set up, but since it has the glow engine style side mounts, I'm facing a problem I'm hoping some folks can help with. Unlike all their other engines, OS does not offer an engine mount for this motor.Looking at the dimensions, it will not fit in the largest of Dave Brown composite mounts. Hobby Services suggested using the Dubro 688, but I'm not a big fan of the rubber isolation mounts. Are folks aware of other suitable engine mounts for this motor?Any help would be appreciated.

Brian Smith

My Feedback: (117)

Take your engine to the hobby shop and get the proper fiber mount for it. That is what I had to do with my first DLE 20 which mounts the same way. Some can be found for under $15.. I been thinking about getting one of these OS motors. Let me/us know how you like it. Brian

Truckracer

My Feedback: (19)

I like this Hanger 9 2 piece metal mount. Reasonable price, strong, etc. and it doesn't require any drilling.

http://www.horizonhobby.com/products...61-2-2-HAN2033

As an alternative, the long Great Planes fiber filled mount will also work quite well.

http://www3.towerhobbies.com/cgi-bin...?&I=LXATG7&P=0

ameyam

I dont have a OS but the dle 20. I would presume the GP 120 size GRP mount would be fine. Thats what I am using on the dle. The smaller-90-120 also fits but you need to force a bit which is not recommended. Dont talk much to Hobby Services about such things, they just follow the manual

Ameyam

Lifer

My Feedback: (1)

I've used the H-9 metal motor mount on several beam mounted 15 and 20cc gas engines. Sturdy and plenty strong and a good choice.

Nostromo1

Thanks for the input. My local hobby shop only has Dave Brown mounts, and their largest did not have enough width for the 22's crankcase. Ihave a Great Planes two piece nylon mount which Ithought was their largest size, but looking at the link posted I've realized they have a larger one. Two questions:Tower's website states for the 1.20-1.80 mountthat themounting width minimum and maximumare 60 and 75mm, respectively. The crankcase at the mounting flanges is 49.4 mm wide so the motor might not be wide enough. I'll have a look at the H9 aluminum mount.
With the slightly higher operating temperatures of the gas motors,have the nylon mounts proved stable over a long period (ie do engine mounting bolts loosen due to creep)?

Brian Smith

My Feedback: (117)

You might call a tower tech guy and ask?? Won't cost anything.. I used stock mounts that came with a Pulse 125. Maybe you can run those down. Brian

Brian Smith

My Feedback: (117)

You might call a tower tech guy and ask?? Won't cost anything.. I used stock mounts that came with a Pulse 125. It fit my DLE 20 perfectly... Maybe you can run those down. Brian

Granpooba

My Feedback: (5)

I have used the Great Planes .60 to 1.20 mount for putting my DLE-20 into a Revolver 70. But, as I have and many others have done is to cut the back of the mount out and epoxy the adjustable pieces back together. That way you end up with two individual pieces and adjust to any width you need.

If you look up Revolver or Larger Revolver forums, you will find what I am talking about. Plenty of chat and pictures.

P.S. You might want to provide whatever further information that you can on the OS GT 22. I have also considered this engine, but very hard to find anything out about it. It seems that the price is stopping everybody from using one. Especially, when you can get a DLE-20 for $250.00 or an XYZ-20 for $189.00. I really do not care about the $409.00 price tag on the OS. But would like some feedback before I run out in this snow storm and purchase one.

Nostromo1

Having made sufficient progress to require an engine for my T34 Top Flite kit, I just purchased the OS GT22 and was utterly shocked to find that they are made in China. Reasons for disappointment: The images shown on the OS website clearly show 'Japan' inscribed into the crankcase in a side view of the engine, and secondly, I've been purchasing OS engines since 1982 and they've been of excellent quality. How do they now justify their price premium over DLE and the half dozen other China made engines? No more OS engines for me.

kmeyers

Very interesting.

Granpooba

My Feedback: (5)

Would like to know where are you getting your information that the " OS GT 22 " is made in China ?

I too have a brand new, still in the box OS GT 22. It clearly states on the box " Made In Japan " , and the engine crankcase itself has the " JAPAN " mold on it.

Is there a Japan in China

Nostromo1

The sarcasm is a bit unfounded. Source of information: Newly purchased unit and long conversations with Great Planes and Tower Hobbies.
Yours must be an older production unit. I just received one from Tower yesterday and it is made in China. Written on the box. No Japan inscription on the crankcase naturally. The folks at Hobby Services, or whichever company that is the sole importer for OS, said that all current and future production is out of China. The earlier units were made in Japan. Tower said they had had several complaints about this and had already checked their inventory and confirmed that all of them are indeed made in China. If a store has an older unit in a display case, it may be Japanese, but not if its new.

Granpooba

My Feedback: (5)

Hmmmmmmmm, guess we are not to old to learn something new everyday. Now, it really makes me wonder which is the better engine, the ones from Japan or the ones from China ?

Guess we just have to look at the fact that China is producing some great model engines.

As long as either is a good running engine, we are not to worry.

But it does appear that the rest of the world is pulling the wool over the USA consumers eyes. Can't blame this one on Putin, huh ? LOL

P.S. Appears that now there is a Japan in China ................ LOL ..... Or is it the other way around ?

crawbob

I just received a OS DT22 rear exhaust and it was made in Japan.

crawbob

As far as the motor mounts go I just received a back mount for my DLE 20 from SeaPlaneSupply.com and it would fit the OS except for the 4 holes for the rear of the motor. I contacted SeaPlaneSupply and suggested they look into making a plate for the OS since all they would have to do would be to change the motor mount holes to match the OS.

scubaozy

I am struggling to mount GT 22 to a Seagull Spacewalker. Original mount is too short. I have ordered 2 different adjustable mounts, one of them looks very flimsy, so I am worried to use it. The other one is Great planes 120-180 adjustable mount. It is great but carburetor does not clear at the back fully and I have to also change the direction of choke arm as choke arm is blocked by the bold. I think I have to shave the back of the mount quite a bit.
ps. Mine also says it is made in Japan

crawbob

You might try and make you own mount out of aluminum and use stand off mounts. I used the one from Sea Plane Supply for my DLE20 with stand offs and it worked better than the plastic mounts. It would take some work but worth it. Sea Plane Supply said they were looking into making one so you might check into it first.

scubaozy

Thanks for the suggestion. I am located in Europe so Sea plane supply is not an option. I started installing it using GP 120-180 adjustable mount. I will have to improvise with throttle and choke arm links as bolts of mounting are on the way. I will post a picture once I have the engine mounted. This is my first gas engine, wished it was a drop in fit..

Granpooba

My Feedback: (5)

I also have a Seagull Spacewalker II and I will also be mounting my OS GT 22 in it. I am 99% certain that I will be using this mount http://www.horizonhobby.com/products...61-2-2-HAN2033 , as I already have one and it has been suggested by other folks.

scubaozy

This is how it looks with GP mount.

crawbob

Yes it will work but very crowded. The 4 pole stand offs give you a lot of room for exhaust, plug wire, etc.. On my DLE20 I used that mount and had trouble with room. Changed to the stand off mounts and had room to spare.

Granpooba

My Feedback: (5)

Looking at the picture, it appears that you did not cut or trim the mount. Did you do any cutting or trimming of the mount ?

scubaozy

I don't think it is visible from this angle, I have opened up two small cavities with dremel tool just enough to get the carburetor closer to the firewall. I will post another image later. I hope there will be enough air for the carburetor after I put the cowl on, as it is a bit tight there.