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Screaming Primary Gears, niose fix
Discussion at Motorized Bicycle Engine Kit Forum in the High Performance Bicycle Engine Tips forum. OK Troops you are going to like this. I found a new trick for the scream that comes out of ...  | 
06-21-2008, 01:46 AM
|  | Master Motorized Bicycle Builder | | Join Date: Jan 2008 Location: Long Beach Ca
Posts: 351
| |  Screaming Primary Gears, niose fix
OK Troops you are going to like this. I found a new trick for the scream that comes out of the primary gears. I was riding along and got tired of listening to the gear noise, and put my hand on the cover, wow all gone. I decided to try a new trick, I took a tube of Silicone rubber and coated the inside of the cover with the stuff. I kept it clear of the gears, putting more at the outer edge and thinning near the center where the disk lifts out when the clutch is pulled in. It was a miracle, it is so nice. I have no idea why the Chinese made that cover so flat, I know there is not much room but dead flat! Oh well you will like this one. Have fun, Dave
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Chuck - The monkey has the spark plug again!
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06-22-2008, 10:26 PM
|  | Motorized Bicycle Builder | | Join Date: Mar 2008 Location: Westport, MA
Posts: 46
| | Re: Screaming Primary Gears, niose fix
Hi Dave,
Great to hear how this is working for you. I tried noise reduction from the outside of the box. I used a high quality (thick) mousepad and some contact cement. Other guys have had very good results with this.
Last edited by cruiser66 : 06-22-2008 at 10:48 PM.
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06-23-2008, 12:33 AM
|  | Master Motorized Bicycle Builder | | Join Date: Mar 2008 Location: Treasure Coast, Florida
Posts: 603
| | Re: Screaming Primary Gears, niose fix
Quote:
Originally Posted by cruiser66  Hi Dave,
Great to hear how this is working for you. I tried noise reduction from the outside of the box. I used a high quality (thick) mousepad and some contact cement. Other guys have had very good results with this. | Worked for me..........
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"No such thing as a stupid question, just a stupid answer"
48cc Grubee Starfire Round Head......
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06-24-2008, 01:46 AM
| | Master Motorized Bicycle Builder | | Join Date: Jan 2008 Location: Long Beach Ca
Posts: 351
| | Re: Screaming Primary Gears, niose fix
The guys in the other forum are making a cardboard insert the shape of the inside of the cover, they claim that it works great. I'm going to try it on my Schwinn, I haven't done that one yet. I think I will glue it in with heavy grease. The pic I saw the center was ground up from the clutch ring touching so I think I will thin out the middle. Have fun, Dave
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Chuck - The monkey has the spark plug again!
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06-24-2008, 07:19 AM
|  | MODERATOR | | Join Date: Jan 2008 Location: Ashtabula county, Ohio
Posts: 4,245
| | Re: Screaming Primary Gears, niose fix
Yeah cardboad gaskets, cardboard gear silencers.....I like the soft, sound absorbing silicone or mousepad idea.
Better yet, I have some lead sheet.
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If it ain't broke, and you mess with it long enough, it will be. |
06-24-2008, 11:27 AM
| | Motorized Bicycle Builder | | Join Date: Mar 2008 Location: Westport, MA
Posts: 46
| | Re: Screaming Primary Gears, niose fix
Have to agree with Bikeguy Joe on this one. I don't like the idea of adding foreign material in the presence of high speed spinning parts and gears....
66 |
06-24-2008, 01:08 PM
|  | Master Motorized Bicycle Builder | | Join Date: Jun 2008 Location: Longmont, CO
Posts: 1,076
| | Re: Screaming Primary Gears, niose fix
Seems to me that you'd get some pretty awesome results with Dynamat (sound deadening material for car audio) on the outside. That stuff is thick and heavy and works wonders. |
06-25-2008, 01:14 AM
| | Master Motorized Bicycle Builder | | Join Date: Jan 2008 Location: Long Beach Ca
Posts: 351
| | Re: Screaming Primary Gears, niose fix
Lead now thats an idea. That would make about as much noise as a lead bell, LOL. I like it. I have my covers polished so I would like to have what ever I need on the inside, sheet lead would do nice. Have fun, Dave
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Chuck - The monkey has the spark plug again!
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