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Old 07-13-2006, 09:12 AM   #5341
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Quote:
Originally Posted by Seisick
the new micro receiver from spektrum handles up to 9v, perfect
for your lipo receiver pack since you'll no longer need the regulator!
and that receiver is the smallest!
The receiver may handle the voltage but the servos won't take that voltage for ever, sooner or later you are going to burn out a motor or amplifier in the servos.
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Old 07-13-2006, 11:19 AM   #5342
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Quote:
Originally Posted by wallyedmonds
i got it now its a knack chassi
Yeah the Knack does look nice. Some of their other parts look to be of good quality too.
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Old 07-13-2006, 11:23 AM   #5343
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Quote:
Originally Posted by richey
The receiver may handle the voltage but the servos won't take that voltage for ever, sooner or later you are going to burn out a motor or amplifier in the servos.
I agree, a regulator is a must have in order to save servos. Hopefully in the future, the Rx's will have the regulators built in.
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Old 07-13-2006, 12:48 PM   #5344
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Quote:
Originally Posted by Seisick
the new micro receiver from spektrum handles up to 9v, perfect
for your lipo receiver pack since you'll no longer need the regulator!
and that receiver is the smallest!
I have the reguator. I will stick with it so I don't burn up my servos.
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Old 07-13-2006, 06:20 PM   #5345
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sorry guys about my posting, this is what I found at spektrumrc.com

Can you use a 6volt RX pack or does it have a 4.8volt pack?
Actually the receiver can handle up to 9.6 volts. The problem is that most servos can only handle around 7 volts.
Can I use 7.4-volt Li-Po batteries with the transceiver? Will it regulate the voltage to roughly 6 volts to the servos? It states the operating voltage is up to 9 volts.
The receiver will easily handle a 2-cell Li-Po pack. The voltage to the servos is non-regulated and some servos won't handle this higher voltage.

so I guess the very next thing from electronics should be a micro receiver
that handles up to 9v but that also regulates the voltage to 6V so there's no damage to the servos!
It's just a matter of time, I bet that hitec will begin the research!
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Old 07-14-2006, 01:19 AM   #5346
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Hey Everyone,

i have still been having ongoing problems with my mtx4 and i have tried many things to fix it.

(Engine: O.S 12 TZ 3 Port)
- When the car is on the starter box the wheels move quite rapidly
- When i apply brake (while on stareter box) the engine idle seems to drop....but i have checked to see whether the brake moves the carb...and it doesnt. Then eventally the engine cuts out.
- I can rev the engine only a little ...but if i put even 1/4 throttle it cuts out.
- Then if i put the car on the ground the engine again just cuts out.

i have tried tightening the clutch spring
And my LHS recomended to richen the mixture screw...soo far none of these have worked
i also dont think that it could be the thrust bearing as it looks in good shape ...and the kit is new and has not been driven so i dont think its a dead bearing.

Could someone please help me with getting this car working ...all help would be greatly apriceated.

thanks,

Daniel
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Old 07-14-2006, 01:38 AM   #5347
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sounds like you need to adjust the clutch. If this is your first car with a centax clutch, this is a common issue.

Start by removing the engine from the car, it will make it easy to work on that way.

step one: remove the thrust bearing and screw from the endbell, leaving the 5x8 bearin in the clutch bell
step two: with the engine in hand, with the crank shaft of the engine pointing straight up, spin the clutch bell, if it does not spin freely, this is your problem:

remove the clutch bell and the 2 small 5x8 bearings from the shaft. add some shims (the same size as the thrust bearing) then replace the clutch bell with the 2 bearings on the inside and 1 outside. spin it again. Do this till the clutch bell spins free and does not drag on the clutch shoe

this should solve your problem,
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Old 07-14-2006, 05:34 AM   #5348
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Try leaning the bottom end and back out the idle screw. You may have artificially tuned your engine with a very rich bottom end and a wider than normal carb opening.
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Old 07-14-2006, 06:17 AM   #5349
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This could also be caused by a faulty thrust-bearing or a non-greased one. Try putting some black grease on the thrust-bearing or checking it to see if its not broken. It also seems that your centax is adjusted too loose.
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Old 07-14-2006, 09:12 AM   #5350
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hey thanks for the quick replys everyone ....when you say tighten the clutch you mean the actual clutch spring? Because i have made the spring to show 0.8 mm of thread as the set-up sheet says.
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Old 07-14-2006, 09:26 AM   #5351
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how r u measruing the clutch?
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Old 07-14-2006, 09:30 AM   #5352
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this measuring instrument which my hobby shop let me use....why? .... iam pretty sure that it is accurate?
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Old 07-14-2006, 09:36 AM   #5353
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.8 is to soft
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Old 07-14-2006, 09:38 AM   #5354
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oh ok i only adjusted it to that because the kit said so....what should i adjust it too u think??

thanks
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Old 07-14-2006, 09:46 AM   #5355
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give me a call 863-294-5221 ask for ralph
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