GMS 46 Problem - RCCanada - Canada Radio Controlled Hobby Forum
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Old 07-14-2005, 08:22 AM   #1
wise guy
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GMS 46 Problem

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reacently I had a problem with my GMS 46 it always ran great in idle and top end . The problem I had was that it would not run at full throttle and die. After changing tanks and the usual trouble shooting I spoke to Propworn and he suggested that I had a major air leak somewhere. So while it was apart i put in a crock pot and boiled it in Antifreeze and boy did it clean up the engine of varnish and gunk. Then i sealed the back plate and the caruburator with blue silicone to stop the air leaks. then she got a good oiling of tranmission oil . Now the engine runs great again and looks good.
Wise Guy
Sun Parlor R/C club
Windsor Ont
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Old 08-02-2005, 11:16 AM   #2
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I read about the antifreeze/crockpot deal somewhere but haven't got around to doing it yet,good to hear you had success. I also have found on a GMS 120 that the front bearing has no seal so if you hold it up to the light you can see through it replacing this with a sealed bearing has led to a major improvement in performance! I also suspect my 61 of the same problem though I have 2 76s and they run great as is.
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Old 08-03-2005, 01:52 PM   #3
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GMS 46 Problem

I ran into similar problems as reported elsewhere in RC. Bought two GMS 47's and they ran fine right out of the box. The next two were the pits. One was a rear needle valve that would always run lean, so I suspected the fuel nipple problem. The second one had the prop nut crossthreaded on the spindle so couldn't get it off to try. As they were brand new I didn't want to do the reboring trick so packed them back to Leading Edge who traded them in for me for on OS Max .45 AX
Motto. If it ain't right from the factory send it back until they figure out what quality control really is.
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