R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Nitro On-Road > Onroad Nitro Engine Zone

Thread Tools Search this Thread
Old 12-07-2009, 11:38 PM   #286
Tech Apprentice
Join Date: Nov 2009
Posts: 83

Originally Posted by Grinder View Post
I have noticed that bearing QC has gone down from them. Some of the bearings are destined to fail, and some have good tolerances that make a good bearing. A good bearing will last at least twice as long as a poorly made one. Sadly it is not possible to get all great bearings in their production engines.

Another thing I have noticed that some aftermarket flywheels are pumping dirt into the front bearing. The back of these flywheels have round parts on the back that pump debris into the front bearing. The rubber shield bearings are OK here, but the metal shielded bearings don't stand a chance. The back of the flywheel should be flat.

The metal shield front bearing is slightly more free than the rubber shield. It makes a slight performance difference, but you have to be more careful with the metal shield. They don't seal as well.
Is this a problem with novarossi engines alone? What about the max power engines?
grouchy is offline   Reply With Quote
Old 12-08-2009, 07:53 PM   #287
Tech Champion
Team Kamikaze's Avatar
R/C Tech Elite Subscriber
Join Date: Apr 2006
Location: 我的名字是沈先生。我是中国人, 居住美国
Posts: 8,868
Trader Rating: 3 (100%+)

Only the first batch of 353 09' engines have bearing problems, the latest batch which is released in the USA on September 09 and onwards does not have bearing issues and up until now there are no report of bearing problems either.
Home of the Kamikaze Driver's Development Program = guaranteed podium finish
Kamikaze Toys and Hobbies Inc.
Follow us here on Facebook!
Team Kamikaze is offline   Reply With Quote
Old 12-13-2009, 12:38 AM   #288
Tech Fanatic
kickass's Avatar
Join Date: May 2002
Location: Sydney
Posts: 775
Trader Rating: 6 (100%+)

Originally Posted by mrgsr View Post
Hi guys i have a small issue with my engine

I noticed these engines act differently when cold for starters compared to the 08 353 i have, the issue im having is that in yesterdays A final it would stall straight after a pit stop. it sounded like it went rich and just died. temps were around the 125 degrees celsius mark.

apart from the stalling it was fine. im thinking it could be a rich bottom end? or maybe a longer pressure is required? could it also be that im using a pressure chamber on the fuel line for more fuel volume?

John G
Never Fear Kickass is here. Johnny relax ill be back in the new year for the Summer Nats. Just use 1 of your other beasts and we will get a tune on your Kickass at the Fairy track.

Thomae I heard that you will be driving an os powered Tamia by then. Is that true
"KicKass "OS" Racing Engines" "capricornrc.com.au"
"RC Arena" Home of "Maxima Fuel"
kickass is offline   Reply With Quote
Old 12-15-2009, 05:31 PM   #289
Tech Rookie
Join Date: Jul 2009
Location: Melbourne, Australia
Posts: 9

hi i have a novarossi 353 and im wondering what nitro percentage and oil content i should use? any sugestions thanks
123unknown is offline   Reply With Quote
Old 12-15-2009, 05:34 PM   #290
Tech Master
Ivan Dickson's Avatar
Join Date: Jan 2005
Location: Cali Love USA
Posts: 1,643
Trader Rating: 12 (93%+)

I used Bryron's 25%...the 353 is pre shim for 16%...add .1 shim for 20%...or .2 shim 25%-30%.
Ivan Dickson is offline   Reply With Quote

Similar Threads
Thread Thread Starter Forum Replies Last Post
Novarossi engines thread EVOLUTION Onroad Nitro Engine Zone 5443 Yesterday 06:43 PM
Jump Square Arena, Sg Buloh mbskl1963 Malaysian R/C Racers 1709 07-22-2014 09:26 PM
GRP... Engine... Thread... xlgraphicspro Offroad Nitro Engine Forum 2135 09-10-2013 09:46 AM
2009 FEMCA 1/8th Offroad Buggy Championship - 23rd-26th July Danny Teh Malaysian R/C Racers 329 08-08-2009 12:54 PM
IMPORTANT: New Product Arrival Alert! (March 2009) rcmart rcMart.com Mega Online R/C Marketplace 51 03-31-2009 02:29 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 10:49 PM.

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