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Originally Posted by FUSIONX AUS/NZ
(Post 10539950)
Are you dropping the idle gap when you lean it out? Sounds to me like its too big
Dave |
Originally Posted by Diff Balls
(Post 10539859)
Hey guys, I need some input.....I am having a bit of problems with the idle on a 21-4BTT. It only has a gallon, maybe a bit less on it. The idle is rich and when I lean it out, it goes from rich to pinging. I can't get it just right. I have a 21-4C Team, and I can get it perfect.
I have replaced the glow plug and went that route....I don't think that is the issue. Any ideas? Do i just need to run it rich and let it break in more maybe? Maybe its the combustion chamber. I had an issue with a Plus4 with the same "lean" idle sound. Monty suggested me to change the combustion chamber, and that was the fault. What plug, pipe, header, fule etc are you running? |
Originally Posted by Lille-bror
(Post 10543147)
Hi.
Maybe its the combustion chamber. I had an issue with a Plus4 with the same "lean" idle sound. Monty suggested me to change the combustion chamber, and that was the fault. What plug, pipe, header, fule etc are you running? Do you know what was wrong/ what happened to your combustion Chamber? Dave |
Originally Posted by FUSIONX AUS/NZ
(Post 10543575)
Do you know what was wrong/ what happened to your combustion Chamber?
Dave http://www.rctech.net/forum/10483754-post2357.html |
anyone have any input on the new .25 truggy roma motor/ building a truggy this week and looking for power, starters going to be the bonito tuned/pre-run..but that roma lookin serious? thanks sorry if answered/asked, just looking for most recent update if possible..
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Originally Posted by houston
(Post 10464489)
you mean is the sleeve the same and everything is different ? ;):lol:
its alllllllll novarossi man , lmk if you need anything decent pipeset on that engine for a truck :D clutch? what kinda car you running ? i have been very happy with the buku power clutch lately but am also a big fan of the werks clutch system |
Originally Posted by Kurt04
(Post 10544787)
Well I got the motor in the truck but it won't run well. Idle is really inconsisitant, sometimes its high, sometimes its low without moving the idle screw, it occasionally surges and dies. If I can get it to stay running any length of time and wind it up it will die on the top end.
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Originally Posted by houston
(Post 10545093)
There could be alot of things goings on there,
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Originally Posted by Kurt04
(Post 10545735)
Where should I start?
front bearing leaking? pressure line pinhole? gummed up carburetor? first things i would check does a different engine do the same thing in that car? |
nova p5xlt
I just got my P5XLT in the mail and I am going to try to get at the least a gallon through it today after I find some fuel ( everyone is out of stock ).
One of the things I've noticed is that there is NO head shims in box ! I haven't taken the head off yet but am assuming there already installed. Is there any recommendations for running Byron's 30% / OD 97t / platinum 086 pipe /,,,,,,,,,,,,, head shims ? I read somewhere along these 100pgs. that it was a good idea to flush the engine out with fuel ? or after run oil ? before first start up ! Any advice on this adventure would be appreciated. |
How do i prevent an enigne flameout after a fuel stop? I had this happen to me a couple of times during heats. Using a 21-4T.
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Originally Posted by psr
(Post 10540236)
hey guys i dont have a issue but a questern i have two btta motors one i brought a few months ago and one i broughts this week for a big race they are both identical part numbers but the older one has a nova branded bearing and the other has some random bearing the one that can be view from out side the engine
is this normal alos could this be a fix for the dodgy nova bearing issue ? |
Originally Posted by RevoUsa
(Post 10547770)
I just got my P5XLT in the mail and I am going to try to get at the least a gallon through it today after I find some fuel ( everyone is out of stock ).
One of the things I've noticed is that there is NO head shims in box ! I haven't taken the head off yet but am assuming there already installed. Is there any recommendations for running Byron's 30% / OD 97t / platinum 086 pipe /,,,,,,,,,,,,, head shims ? I read somewhere along these 100pgs. that it was a good idea to flush the engine out with fuel ? or after run oil ? before first start up ! Any advice on this adventure would be appreciated. Use Novarossi plugs. The OD's aren't as good. |
Originally Posted by p@p@nut
(Post 10548099)
How do i prevent an enigne flameout after a fuel stop? I had this happen to me a couple of times during heats. Using a 21-4T.
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Originally Posted by p@p@nut
(Post 10548099)
How do i prevent an enigne flameout after a fuel stop? I had this happen to me a couple of times during heats. Using a 21-4T.
Too rich HSN Too cold plug Too low idlespeed Overfilled tank Too cold plug Too cold plug ;) What plug, fuel and pipe are you running? |
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