R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 09-04-2008, 09:32 AM   #16
Suspended
 
Join Date: Aug 2008
Posts: 221
Default

Quote:
Originally Posted by shurcooL View Post
IPersonally, I don't understand how this is an accepted practice to leave gears exposed in off-road vehicles, when it's absolutely impossible to prevent small rocks, dirt and dust from getting inside the body and eventually into the gears. =/
it's to make ease of access since additional covers and shields makes it harder to make motor or gear changes and do routine maintenance.
RCabcs is offline   Reply With Quote
Old 09-04-2008, 09:41 AM   #17
Suspended
 
Join Date: Aug 2008
Posts: 221
Default

Quote:
Originally Posted by TimNJ View Post
I agree. It seems as if the manufacturers expect that every open-gear offroad car they produce will be run on the same "paved clay" offroad tracks that the top pros race on. They forgot to account for the 99.9% of RC racers, us "regular Joes" so to speak, who run on all sorts of loose dirt, loamy soil, mud, muck, etc.

I was amazed that I was able to get just about 2 months of life out of the first spur and pinion on my B44...
the manufacturers make RACE cars for racers
in the same line of thinking that Ford makes street cars for the regular joe and not nascar racers
if the RC manufacturers made cars for 99.9% of RCers out there they wouldn't be acceptable for the top knotch drivers who win the races that help sell their cars
otherwise there are companies that already make bashworthy cars that require little or no maintenance, but aren't nearly as raceable

either way it's part of taking and dealing with the hand you're dealt
RCabcs is offline   Reply With Quote
Old 09-04-2008, 10:07 AM   #18
Tech Regular
 
Join Date: Jun 2008
Location: The OC
Posts: 291
Default

Easy "gear cover":
A possible solution would be to strategically add shaped pieces of open cell foam (like to kind used for motorcycle air filters). You can tack it down with simple spray adhesive. I would also use the air filter oil to retain the dust and small rocks within the foam so it does not dislodge to damage the gears.

Open cell foam advantages:
1. will trap the dust and small rocks that are bouncing around chewing up your gears
2. still allow for airflow for cooling purposes
3. because it's so flexible and inexpensive, regular gear changes and maintenance is easy
4. it's light weight
5. it's inexpensive

The disadvantages:
1. it is not a pre-made kit
2. you would have to be creative.

Like this but made of open cell foam:


Last edited by haulin79; 09-04-2008 at 10:58 AM.
haulin79 is offline   Reply With Quote
Old 09-04-2008, 10:23 AM   #19
Tech Elite
 
ta_man's Avatar
 
Join Date: Nov 2006
Location: New Jersey
Posts: 4,365
Trader Rating: 151 (100%+)
Default

Quote:
Originally Posted by JeffEmbracedDC View Post
Does anyone know of a good line of pinions that can withstand a little bit of dirt and sand without getting messed up? I have a B44 and there's just no way of keeping debris out of that area and I'm tired of it being almost as loud as the nitros.

Thanks, guys

-Jeff
I will add a third voice recommending the Losi 48P pinion gears. They are harder than most files (the things you use to cut metal). I have never worn out or had it damaged by grit.
ta_man is offline   Reply With Quote
Old 09-04-2008, 10:25 AM   #20
Suspended
 
Join Date: Aug 2008
Posts: 221
Default

Quote:
Originally Posted by haulin79 View Post
A possible solution would be to strategically add open cell foam, like to kind used for motorcycle air filters.
rofl
RCabcs is offline   Reply With Quote
Old 09-04-2008, 10:41 AM   #21
Tech Champion
 
Jason Pelletier's Avatar
 
Join Date: Jul 2007
Location: New York
Posts: 8,820
Trader Rating: 33 (100%+)
Default

Robinson pinions are loud and wear out easy, I know your pain OP

I use losi pinions they are much quieter and last longer.

Go losi problem solved.
__________________
Island Raceway & Hobby
Jason Pelletier is offline   Reply With Quote
Old 09-04-2008, 10:43 AM   #22
Tech Elite
 
Jake S's Avatar
 
Join Date: Jan 2007
Location: Erie PA
Posts: 4,607
Trader Rating: 66 (92%+)
Send a message via AIM to Jake S Send a message via MSN to Jake S
Default

Quote:
Originally Posted by ta_man View Post
I will add a third voice recommending the Losi 48P pinion gears. They are harder than most files (the things you use to cut metal). I have never worn out or had it damaged by grit.
i do agree the losi 48p gears are nice, i currently got a 18t pinon mated to my 84t spur on my 6.5 brushless
__________________
VooDoo Racing Cells | Flying Farmer RC | Trackside Hobby | Prochko Paintz | RG1
Jake S is offline   Reply With Quote
Old 09-04-2008, 10:43 AM   #23
Tech Master
 
johnnyboy's Avatar
 
Join Date: Sep 2006
Location: Ontario, Canada
Posts: 1,634
Trader Rating: 28 (97%+)
Default

Losi pinions are the good old stand by. Great pinions.

I have recently switched to Kyosho's steel pinions and LOVE them. Very durable!

Robinson alloy ones are useless in off road.
__________________
"Almost Live Race Coverage": www.johnnyboy.ca

.:Team Orion : JConcepts : B-Fast RC:.
johnnyboy is offline   Reply With Quote
Old 09-04-2008, 10:55 AM   #24
Tech Elite
 
RCHR's Avatar
 
Join Date: Mar 2008
Posts: 2,490
Default

Just run a tiny bit more spacing between your pinion and spur. The mesh will be quieter. It will also allow more room between teeth to prevent rock from getting smashed in the teeth and making impressions. Most cars I see have their gear mesh too close.
__________________
Radio Control Hobbies & Raceway
1258 South Main Street, Waterbury, CT. 06706
203-575-9757 / www.rchr.biz / [email protected]
RCHR is offline   Reply With Quote
Old 09-04-2008, 10:57 AM   #25
Tech Regular
 
Join Date: Jun 2008
Location: The OC
Posts: 291
Default

When a rock gets caught between a pinion and spur, only a few things can happen:

1. the pinion is ultra strong and the spur is plastic - the rock will gouge the spur.
2. the pinion is average and the spur is plastic - the rock will gouge the pinion and spur.
3. you get the point...if a rock gets caught between a pinion and spur, damage WILL occur.

The best solution:
Don't allow rocks and dust to get in between the pinion and spur. i.e. make/get a gear cover.
haulin79 is offline   Reply With Quote
Old 09-04-2008, 11:42 AM   #26
Tech Regular
 
Join Date: May 2007
Posts: 359
Trader Rating: 20 (100%+)
Default

I'll definitely try the Losi pinions.

Here are some photos of my b44 for funsies.







Thanks, guys!

-Jeff
JeffEmbracedDC is offline   Reply With Quote
Old 09-04-2008, 12:01 PM   #27
Tech Regular
 
Join Date: May 2007
Posts: 359
Trader Rating: 20 (100%+)
Default

Is this one of the losi pinions you guys speak of?

http://www.amainhobbies.com/product_...ducts_id/22071

-Jeff
JeffEmbracedDC is offline   Reply With Quote
Old 09-04-2008, 12:04 PM   #28
Tech Elite
 
Join Date: Jun 2008
Location: anywhere I can race 2wd dirt,and 1/12 onroad in MI.
Posts: 3,405
Trader Rating: 39 (100%+)
Default

yep. They make up to 30t. i am not sure how small though.The smallest I have is 12t.
2wdMod is offline   Reply With Quote
Old 09-04-2008, 12:09 PM   #29
Tech Regular
 
Join Date: May 2007
Posts: 359
Trader Rating: 20 (100%+)
Default

Awesome. I appreciate it!

-Jeff
JeffEmbracedDC is offline   Reply With Quote
Old 09-04-2008, 02:12 PM   #30
Tech Elite
 
tom_chang79's Avatar
 
Join Date: Jul 2008
Location: Southern California
Posts: 2,591
Trader Rating: 13 (100%+)
Default

Quote:
Originally Posted by chensleyrc1 View Post
I stopped running Robinson's gears a while ago and went to PRS gears, I took a couple of Robinson, Losi, and AE gears to them for testing and found the gears not to be as round as the PRS gears causing alot of noise and inconsistancy in the mesh, which in turn wore the gears out. The PRS gears are machined to a tight tolerance and are the quietist, lightweight and durable gears I have used in 18 years. Here's the web site.

www.precisionracingsystems.com
Thanks for the link, at 1.99 per pinion, the price isn't bad at all!

This thread got me thinking on looking at my pinions. A lot of them has gunk in it. I don't think I've ever cleaned it thoroughly... Ok, where did I put my acid brush and motor cleaner...
__________________
RIP TAP RC
tom_chang79 is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
1/12 forum ovalnator Electric On-Road 46189 12-15-2017 08:13 AM
CRC Battle Axe, GenXPro 10, 1/10th pan, Brushless, Lipo,4c, Road, Oval,TipsandTricks John Stranahan Electric On-Road 1776 03-01-2016 01:18 PM
Tamiya TamTech Series GB-01 gtypecanare Micro and Mini Scales 371 09-10-2015 05:18 PM
New Hot Bodies Buggy!!??????? monsteraddict Nitro Off-Road 14489 03-18-2013 02:42 PM
Newbie Questions liquidular Malaysian R/C Racers 7 01-12-2009 10:39 PM
Heli competition at Rain City Slapmaster6000 Northwest Racers 168 10-12-2006 12:30 PM



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 02:42 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net