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engine trouble...please help.

engine trouble...please help.

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Old 08-17-2009, 09:32 AM
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Default engine trouble...please help.

i have recently just purchased a thunder tiger eb4 s3 & was wondering if someone out there could help... i've changed the clutchbell/pinion gear from a 13t to a 14t & have noticed that the 14t bell has turned black from overheating, is this normal? the 13t hasn't changed colour at all. the amount of heat generated to cause this dis-colouring must be great indeed. is this damaging to the engine? check out the pics & let me know what u think. as you can see there is a big difference between their colouration.

this is my 1st off road r/c & was wondering what you guys thought of the kit. is it a good kit or did i waste my money? it seems to go fairly well. i've had it clocked up to 90km/h which should be fast enough for racing i hope. i picked it up at a closing down sale brand new for just under $400aud and i thought it was a good buy. have had a few stacks but the kit seems strong & up for the stresses imposed on it. i'm also starting to clear 15 meter jumps at the local bmx track & learning to control the gyroscopic motion of the wheels through the application of throttle & brake while in flight which is awesome fun.
anyway if someone could get back to me about the above mentioned topics that would be great.
thanx.
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Old 08-17-2009, 01:00 PM
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well i dont see any pics, but dis-coloration happens and is nothing to worry about
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Old 08-17-2009, 01:19 PM
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Dis-coloring of the clutch bell means slipping. May need to put softer springs in to clamp it better. To much slip and they burn away fast. Plus kill clutch bearings fast.
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Old 08-17-2009, 02:12 PM
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same thread with the pics he mentioned:

http://www.rctech.net/forum/nitro-of...ease-help.html
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