R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Electric On-Road

Reply
 
Thread Tools Search this Thread
Old 08-18-2004, 09:37 AM   #9436
Tech Elite
 
Horatio's Avatar
 
Join Date: Sep 2003
Posts: 3,056
Default

Sometimes the grub screw on the motor pinion can stick out enough to catch the spur gear. Take a look just in case.
Horatio is offline   Reply With Quote
Old 08-18-2004, 10:16 AM   #9437
Tech Master
 
Join Date: May 2004
Location: New Zealand
Posts: 1,204
Default Speaking of spur gears......

Yokomo problem 2568.......

The spur gear adaptor is causing the spur gear itself to wobble.

Screwing the spur to the adaptor as evenly as possible (and using various brands of spur) it spins without wobble...BUT.... as soon as I screw down the grub screw onto the input shaft (even stopping as soon as I feel any resistance of the screw on the shaft) the spur wobbles.

This I figured is due to the shaft being a lose fit through the adaptor and when the screw (as mentioned above) barely touches the shaft it is causing the adaptor to run untrue.

Any ideas how to stop this happening as I have two adaptors and it does it with both of them?

For the sort of money in NZ I had to pay for this thing it's turning out to be the least well constructed kit (accuracy of part fit wise) I've ever had the misfortune to buy.

Last edited by Mabuchi540; 08-18-2004 at 10:25 AM.
Mabuchi540 is offline   Reply With Quote
Old 08-18-2004, 11:56 AM   #9438
Tech Regular
 
Join Date: Oct 2003
Posts: 373
Default

I don't understand why people still keep blasting the SD as "the least well constructed". My SD went together very well and runs very quiet. If you talk about spur gear's wobble, Asso tc3 and Losi's xxx spur gears have even more wobble. If you talk about part fit, try TC3, you will need two hours to dremel the gear boxs so the diffs will fit, then you will thank yokomo because their gearbox fit is top. Or the broken one way gear in Tamiya EVO3. Want to know more 'bugs' from other cars, the list is long. My point is every car has some 'bugs', there are ways to fix or get around them. SD is a very good car and well worth the money. Take you time, build it right and it will give you a big smile on the track.
caveman is offline   Reply With Quote
Old 08-18-2004, 12:47 PM   #9439
Tech Champion
 
JayBee's Avatar
 
Join Date: Mar 2004
Location: 12TH-MAN COUNTRY
Posts: 6,813
Trader Rating: 31 (100%+)
Post

ALL STICKERED UP

I know it's not legal, but here's my fix to the rear window...

- jaybee
__________________
R C 3 G R A F I X _ F U S I O N . G R A P H I X _ S E A T T L E - R/C - R A C E R S _ E M E R A L D C I T Y R C . C O M

A E - 12R5.2 _ S M - REV8 PRO

Last edited by JayBee; 09-12-2008 at 10:27 PM.
JayBee is offline   Reply With Quote
Old 08-18-2004, 12:48 PM   #9440
Tech Champion
 
JayBee's Avatar
 
Join Date: Mar 2004
Location: 12TH-MAN COUNTRY
Posts: 6,813
Trader Rating: 31 (100%+)
Cool

one more....
__________________
R C 3 G R A F I X _ F U S I O N . G R A P H I X _ S E A T T L E - R/C - R A C E R S _ E M E R A L D C I T Y R C . C O M

A E - 12R5.2 _ S M - REV8 PRO

Last edited by JayBee; 09-12-2008 at 10:27 PM.
JayBee is offline   Reply With Quote
Old 08-18-2004, 12:49 PM   #9441
Tech Champion
 
JayBee's Avatar
 
Join Date: Mar 2004
Location: 12TH-MAN COUNTRY
Posts: 6,813
Trader Rating: 31 (100%+)
Thumbs up

yeah baby...

last one....

- jaybee
__________________
R C 3 G R A F I X _ F U S I O N . G R A P H I X _ S E A T T L E - R/C - R A C E R S _ E M E R A L D C I T Y R C . C O M

A E - 12R5.2 _ S M - REV8 PRO

Last edited by JayBee; 09-12-2008 at 10:27 PM.
JayBee is offline   Reply With Quote
Old 08-18-2004, 02:26 PM   #9442
Registered User
 
ritchie's Avatar
 
Join Date: Oct 2001
Posts: 2,044
Default

Quote:
Originally posted by caveman
I don't understand why people still keep blasting the SD as "the least well constructed". My SD went together very well and runs very quiet. If you talk about spur gear's wobble, Asso tc3 and Losi's xxx spur gears have even more wobble. If you talk about part fit, try TC3, you will need two hours to dremel the gear boxs so the diffs will fit, then you will thank yokomo because their gearbox fit is top. Or the broken one way gear in Tamiya EVO3. Want to know more 'bugs' from other cars, the list is long. My point is every car has some 'bugs', there are ways to fix or get around them. SD is a very good car and well worth the money. Take you time, build it right and it will give you a big smile on the track.
after reading his past posts i have concuded that he is a bit of a perfectionist. in one he even admits to being "anal" about building his cars. and thats fine. i have just the opposite problem. from the time i cut the plastic wrap to the time it was out in the street running was about 2 1/2 or 3 hours for me. i do this for "fun", i have a job for "work"

540,,, the yok mechanic told me on the grub screw to use a very very small drop of lock tight, screw it in until it touches, then back it off just a touch. if you look closely, there is no way for the drive pin to fall out once the shaft is pushed into place.

having the car sitting on a stand with the motor running or turning my hand is no way to know how the car is going to work or sound sitting on the ground with a load on.
ritchie is offline   Reply With Quote
Old 08-18-2004, 02:28 PM   #9443
Registered User
 
ritchie's Avatar
 
Join Date: Oct 2001
Posts: 2,044
Default

jaybee, body looks good, i would have left the "mistake" i thought it looked cool. FW sunday?
ritchie is offline   Reply With Quote
Old 08-18-2004, 03:35 PM   #9444
Tech Champion
 
JayBee's Avatar
 
Join Date: Mar 2004
Location: 12TH-MAN COUNTRY
Posts: 6,813
Trader Rating: 31 (100%+)
Post

Quote:
Originally posted by ritchie
jaybee, body looks good, i would have left the "mistake" i thought it looked cool. FW sunday?
I really want to but no pit gear i.e. tent, table, cords and the like.
Thanks for the props on the body; I would have left it 'cause I thought it was cool too but more than that, it was an eye-sore to me.

- jaybee
__________________
R C 3 G R A F I X _ F U S I O N . G R A P H I X _ S E A T T L E - R/C - R A C E R S _ E M E R A L D C I T Y R C . C O M

A E - 12R5.2 _ S M - REV8 PRO
JayBee is offline   Reply With Quote
Old 08-18-2004, 03:47 PM   #9445
Tech Addict
 
Join Date: Nov 2003
Location: Tennessee, Knoxville
Posts: 694
Trader Rating: 5 (100%+)
Send a message via Yahoo to grubster
Default Re: Speaking of spur gears......

Quote:
Originally posted by Mabuchi540
Yokomo problem 2568.......

The spur gear adaptor is causing the spur gear itself to wobble.

Screwing the spur to the adaptor as evenly as possible (and using various brands of spur) it spins without wobble...BUT.... as soon as I screw down the grub screw onto the input shaft (even stopping as soon as I feel any resistance of the screw on the shaft) the spur wobbles.

This I figured is due to the shaft being a lose fit through the adaptor and when the screw (as mentioned above) barely touches the shaft it is causing the adaptor to run untrue.

Any ideas how to stop this happening as I have two adaptors and it does it with both of them?

For the sort of money in NZ I had to pay for this thing it's turning out to be the least well constructed kit (accuracy of part fit wise) I've ever had the misfortune to buy.

Easy Fix: Simply do not put the set screw in. Once the spur gear assembly is pushed foward into place the pin cannot come out. None of the factory guys run the set screw.
__________________
Losi Eight; XXX-SCT; 22; AD2
ROCCK RACING
grubster is offline   Reply With Quote
Old 08-18-2004, 05:15 PM   #9446
Tech Master
 
Join Date: May 2004
Location: New Zealand
Posts: 1,204
Default

Quote:

540,,, the yok mechanic told me on the grub screw to use a very very small drop of lock tight, screw it in until it touches, then back it off just a touch. if you look closely, there is no way for the drive pin to fall out once the shaft is pushed into place.

having the car sitting on a stand with the motor running or turning my hand is no way to know how the car is going to work or sound sitting on the ground with a load on. [/B]
I agree with what you're saying and with what others have commented, and will do that idea/s but my point is such little umm ....tricks of construction/hints and tips should be in the manual already don't you think?

Cheers dude.
Mabuchi540 is offline   Reply With Quote
Old 08-18-2004, 06:38 PM   #9447
Registered User
 
ritchie's Avatar
 
Join Date: Oct 2001
Posts: 2,044
Default

not really, at the time of printing the manuals none of these tips tricks are known. its trail and error that many of these tips and tricks are found. you know like "hey what if i did this". and these forums are a great sourse to find these things out.

also if you build the car per the instuctions in the manual, it will operate just find. fine tuning is up the operator.
ritchie is offline   Reply With Quote
Old 08-18-2004, 06:41 PM   #9448
Registered User
 
ritchie's Avatar
 
Join Date: Oct 2001
Posts: 2,044
Default

Quote:
Originally posted by JayBee
I really want to but no pit gear i.e. tent, table, cords and the like.
Thanks for the props on the body; I would have left it 'cause I thought it was cool too but more than that, it was an eye-sore to me.

- jaybee

i don't have those items either. the ones i use are fw's. if you get there early you can set up next to me.
ritchie is offline   Reply With Quote
Old 08-18-2004, 06:52 PM   #9449
Tech Master
 
Join Date: May 2004
Location: New Zealand
Posts: 1,204
Default Unrelated curious anomaly number two.....

Anyone else noticed the screws on their rides loosen in cold weather?

I ask because it's rather cold here in NZ at the moment and in the evening when I've built the car (and room is nice and warm) I've noticed that in the morning (when it's cold say around 10c/50f degree) the screws need tweaking in another 1/4 to 1/2 a turn?

Just wondering.

My guess is the screws themselves are far more affected by temp than the material they are screwed into.

And now for something completly different....

I know the shotkey diode has to go across the + and - terminals of the motor but as the 540 doesn't have these marked is it ok to just solder the diode further back and across the positive and negative esc wires?

Last edited by Mabuchi540; 08-18-2004 at 07:28 PM.
Mabuchi540 is offline   Reply With Quote
Old 08-18-2004, 11:24 PM   #9450
Tech Champion
 
JayBee's Avatar
 
Join Date: Mar 2004
Location: 12TH-MAN COUNTRY
Posts: 6,813
Trader Rating: 31 (100%+)
Talking

Quote:
Originally posted by ritchie
i don't have those items either. the ones i use are fw's. if you get there early you can set up next to me.
SWEEEET...... in that case, I'm there. BRIGHT-EYED & BUSHY-TAILED. The way it's looking though, I just hope the weather holds up.
Here's the finished product.....

- jaybee
__________________
R C 3 G R A F I X _ F U S I O N . G R A P H I X _ S E A T T L E - R/C - R A C E R S _ E M E R A L D C I T Y R C . C O M

A E - 12R5.2 _ S M - REV8 PRO

Last edited by JayBee; 09-12-2008 at 10:27 PM.
JayBee is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
yokomo or yokomo parts yokomo7 R/C Items: Wanted to Buy 4 12-19-2009 08:45 PM
Yokomo is coming out with a new version of the bd : Yokomo BD 2 roadrashracing Electric On-Road 12 12-19-2007 07:08 AM
yokomo Aluminum Steering Bellcrank Posts and other yokomo spares hurley081182 R/C Items: Wanted to Buy 2 02-27-2006 06:07 PM
Lots FS: CRC 3.2 & Yokomo YRX-12, Yokomo TC Tires, JR Receivers, New Motors, more TurboFC3S R/C Items: For Sale/Trade 15 09-22-2005 09:38 PM
WTB Yokomo 1/12 Mini...Trade for 1/10 Yokomo dynamic_e R/C Items: For Sale/Trade 0 07-12-2003 05:58 AM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 02:53 AM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net