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All Forums >> RC Cars, Buggies, Trucks, Tanks and more >> RC Monster Trucks >> HPI Monster Truck Forum >> Spur Gear mesh
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Spur Gear mesh - 7/4/2006 9:09:33 PM   
zsultan


 

Posts: 276
Joined: 4/24/2005
From: West Hills, CA, USA
Status: offline 		Hello,

I setup my spur gear such that the spur gear moves freely in the reverse direction, but If i hold the clutch bell there is no play in between spur gear and clutch bell. Is this setting ok?

Please help

< Message edited by zsultan -- 7/4/2006 9:18:18 PM >
       Post #: 1

RE: Spur Gear mesh - 7/4/2006 9:11:11 PM   
j1001



Posts: 591
Joined: 5/28/2006
From: Clinton, MO, USA
Status: offline 		the mesh should be the same both directions. loosen the engine. put a peice of paper inbetween. push cb to spur and then tighten the engine mounts. dont make it to tight and make it tight enough it wont strip the gears.

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RE: Spur Gear mesh - 7/4/2006 9:19:17 PM   
zsultan


 

Posts: 276
Joined: 4/24/2005
From: West Hills, CA, USA
Status: offline 		j1001,

If i hold the clutch bell there is no play in between spur gear and clutch bell.

is this setting ok?

Thanks

(in reply to j1001)
       Post #: 3

RE: Spur Gear mesh - 7/4/2006 9:21:35 PM   
j1001



Posts: 591
Joined: 5/28/2006
From: Clinton, MO, USA
Status: offline 		yeah. you dont want it to tight. if you cant turn the spur gear over easly with your finger then it is to tight.

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RE: Spur Gear mesh - 7/4/2006 9:59:37 PM   
46u



Posts: 18681
Joined: 1/13/2005
From: Macon, GA, USA
Status: online 		I set mine where I have just a little gear lash as well as spins with out bind. Has worked well for me in 3 or 4 gallons and still running the same spur.

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RE: Spur Gear mesh - 7/8/2006 8:54:15 AM   
zsultan


 

Posts: 276
Joined: 4/24/2005
From: West Hills, CA, USA
Status: offline 		Hi,

Is some play between spur gear and clutch bell required or there should be no play?

(in reply to 46u)
       Post #: 6

RE: Spur Gear mesh - 7/8/2006 10:58:21 AM   
suicidemachine


 

Posts: 192
Joined: 7/7/2006
From: las vegas, NV, USA
Status: offline 		You want them close enough not to lash, but loose enough that when you spin the spur you get at least 2-3 rotations.


< Message edited by suicidemachine -- 7/8/2006 11:15:12 AM >

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RE: Spur Gear mesh - 7/9/2006 2:30:12 AM   
Yamaha9


 

Posts: 349
Joined: 12/13/2005
From: Yardville, NJ, USA
Status: offline 		how do u do the paper test?

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RE: Spur Gear mesh - 7/9/2006 2:36:06 AM   
suicidemachine


 

Posts: 192
Joined: 7/7/2006
From: las vegas, NV, USA
Status: offline 		You want a peice of paper to go through the CB and SG mesh making a nice crinkle cut like a fry, but not tear the paper as this would indicate the mesh is too tight.
quote:

ORIGINAL: Yamaha9

how do u do the paper test?



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RE: Spur Gear mesh - 7/9/2006 2:51:31 AM   
Yamaha9


 

Posts: 349
Joined: 12/13/2005
From: Yardville, NJ, USA
Status: offline 		thanks bro.

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RE: Spur Gear mesh - 7/9/2006 3:10:16 AM   
benzzyo5



Posts: 2871
Joined: 1/29/2006
From: carmel, NY, USA
Status: offline 		yeah i use the papter also and i have the same spur for 5 gallons now

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RE: Spur Gear mesh - 7/9/2006 3:44:02 AM   
chubbysuncle


 

Posts: 621
Joined: 5/4/2006
From: Glenwood, NJ, USA
Status: offline 		If you go to the HPI site they have a video on how to set gear mesh. They say there should be a very small amount of play between the bell and the spur to prevent overheating. I tightened the slipper down all the way on a spur gear that I ran 4 + tanks though and stripped that spur in about 2 minutes. I didn't touch the gear mesh. I leave the slipper alittle loose and do the paper thing like on the vid and it works GREAT! BTW that spur I stripped was in perfect shape. I couldn't believe it. I was nervous about stripping my spare due to bad mesh, but I just backed off the slipper and it's fine. I thought I might've had a bent chassis plate but everything checked out. Wheelies galore! I thought it may be better with a super tight slipper but NO. That just stripped it out.

HPI video herehttp://www.hpiracing.com/kitvideos/all.html

< Message edited by chubbysuncle -- 7/9/2006 3:59:34 AM >

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