Where to get GMS / Tower engine parts? - RC Groups
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Aug 18, 2010, 07:17 AM
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dmajchrzak's Avatar

Where to get GMS / Tower engine parts?

Our club trainer has a Tower .46. It's blown a head gasket and needs a $2 gasket kit. Does anybody know where to find parts?
MECOA has dropped the GMS line (makers of Tower's engines), and Tower Hobbies hasn't had GMS or Tower parts of many months now.
I'm hoping somebody out there has a LHS that has some left over stock for GMS engines. Maybe you guys know a website with some stock?

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Aug 18, 2010, 12:11 PM
Registered User
MECOA might still have a few parts around. I would call them and ask. Head gaskets are pretty common.

I have heard that the Chinese are "striking" or whatever and there is no production going on. So all mainland Chinese stuff seems to be drying up.

Aug 18, 2010, 07:11 PM
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JollyPopper200's Avatar
A head gasket is keeping the engine from running? A head gasket is normally just a thin aluminum washer that sits in the groove in the head that the liner fits into. They are not really head gaskets but more a shim that lowers compression a bit. It would be very difficult to "blow" one. And most engines will run just fine without them anyway. Engines just have a bit more compression without them which may require a little finer tuning.
Aug 18, 2010, 08:07 PM
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JohnsPop's Avatar
Maybe just put a layer of red RTV silicone around the top, put the head back on and let it cure overnight....
Aug 18, 2010, 08:49 PM
Airplane Gearhead
You could make one out of a piece of soda or beer can?

Or, just try running it w/o the shim/gasket...if it leaks, try lapping the head to the sleeve flange. (that worked quite well on an Enya .50SS of mine)
Aug 19, 2010, 02:49 AM
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JollyPopper200's Avatar
Somewhere in the late 90s I bought a Tower .46 for the price. When I tried to break it in, it would not run very well. It would hardly run at all. I tried all the simple stuff to no avail, so I took the engine apart. I discovered the liner was not in the case correctly, the exhaust port not aligned with the opening in the case. I turned it and it has been a real work horse since. It ran so well, in fact, that when the purple on the head began to fade, I bought a new head. The new head came with two shims/gaskets. As I recall, the instructions said the engine could be run with none, one or both of them. I'm running mine with none. So I still have two new, unused head shims/gaskets. If it will fix your engine, I will send you one with my compliments. If it does not fix your engine, I would like it back. It's a pay it forward thing. Somewhere down the road, someone at your field will need a prop or glo plug or something that will get him in the air and you will have one to loan or give him.
Sep 06, 2010, 01:29 PM
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dmajchrzak's Avatar
Thanks for the info everyone. Jolly - people like you are why this hobby is so great.
I ended up using JB Weld to seal the head. Hope it works!
Sep 07, 2010, 07:14 AM
Registered User
must be a USA problem, the rest of teh world seems to have plenty spares of GMS engines. I just rebuilt mine a couple of weeks ago. Gaskets, bearings the lot, all replaced with genuine GMS parts.
Sep 07, 2010, 08:31 AM
Registered User
I am sure there is a container full of stuff being shipped from China to the US of A. But where that container is in the stack of containers on the container ship, and the progress of the ship have a lot to do with parts availability. Consumption rates in the US of A also has a bearing on parts availability.

But the problem is indeed there and effects both the GMS and Tower Hobbies engines (which are as most know almost identical except for coloring).

Feb 19, 2012, 07:54 PM
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perpetualrepair's Avatar


Are there any spares anywhere for these GMS motors?. I need at least a ring for a 76 possibly a liner and piston.
Or does any one know if there are other parts for other motors that will fit?
Hate to use it as a fisshing weight as itonly has a few hours on it.
Feb 21, 2012, 08:55 AM
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earlwb's Avatar
Frank Bowman makes piston rings for most anything. He likely already has some.
He makes the best rings by far, even in comparison to many of the engine companies.
Frank Bowman
1211 N Allen Ave
NM 87401-3568
Phone: (505) 327-0696

here in the USA GMS was imported by Great Plains (aka Tower Hobbies), they had taken over the GMS line from MECOA. I suspect they killed it off in the USA and aren't importing it anymore. GMS too, may have discontinued production of model engines as their primary business is car parts such as for brake systems. So they may be too busy to make model engines now.
Feb 22, 2012, 12:25 PM
Registered User
perpetualrepair's Avatar


Thanks for the link earlwb, have a couple of rings on the way, great guy to deal with.
Wonder if we will ever be able to get parts again though,

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