R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 12-10-2007, 10:52 AM   #16
Tech Elite
 
ezveedub's Avatar
 
Join Date: Aug 2004
Location: Fort Lauderdale, FL
Posts: 2,411
Trader Rating: 14 (100%+)
Send a message via AIM to ezveedub Send a message via Yahoo to ezveedub
Default

Since we have no real idea of the engines condition, only by what your saying, did anyone else at track look at your engine and tell your what they think of its condition? The hotter plugs run a thinner wire than cold ones, so maybe step down to a P4 or P6 plug and try it again. The thinner wire needs more fuel to keep it cool or they burn out. Also, if the compression on the engine is low or the piston/sleeve is worn out it will eat glowplugs also. I have run into this issue with O.S. engines and their hot plugs. Since the hot plug will stay lit more than a cold one, you won't really know the tune of the engine since it stays running till the glowplug pops. Also, if the glow plug wire breaks, you need to take the engine apart, because if the filament pieces drops into the combustion chamber, will will scratch the piston and sleeve. The colder plugs requires better tuning to keep it running, but I also get better speed out of the colder plugs on an O.S. V Spec. The RB & Novarossi turbo plugs fit, but are a bit smaller on the conical taper. The RB #6 plug seemed to work the best for us, but like I said, its a bit smaller on the taper, but thats all we had around at the time. I tried an RB#5, but it was slower. Try to get a colder O.S. plug and keep the same needle settings first and see how it runs. But like I stated earlier, if the piston/sleeve compression is low, then that would most likely be the cause.
__________________
Kyosho, Mugen Seiki, Maxy's Fuel, KO Propo
O.S., Ninja JX, Novarossi, RMV
ezveedub is offline   Reply With Quote
Old 12-10-2007, 02:43 PM   #17
SH
Tech Addict
 
Join Date: Oct 2007
Location: NSW AUS
Posts: 702
Trader Rating: 18 (100%+)
Default

only run the P3 OS plug, you could try the OS P4 at a later date but stick with the OS P3 for now.

check you have no air leaks, this will cause plugs to pop & make the engine hard to tune. also replace the fuel & pressure line.

never stop an engine by placing your finger over the stinger, this also will shorten the life of glow plugs.

if you do have a fair bit of slop in your rod, replace it just to be safe.

after doing all these go back to a rich setting on your top & bottom needles, & track tune only. do atleast 3 laps to get the engine up to temp, then start to lean the top needle 1/8th of a turn at a time, do another lap then repeat the same again.
Do not touch the bottom end needle until you have the top end right. the end result should be leanish on the bottom & just a tad rich on the top, just make sure you have a steady stream of smoke when your at the higher end of your throttle range.

last but not least, i would advise an oil content of no less than 12% in your fuel.
SH is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
World GT Club Racing - To spec or not to spec is the question???? Mr. McGoo Electric On-Road 722 11-01-2014 06:05 AM
Rubber-Spec /Foam-Spec Armedforces Electric On-Road 5 03-25-2008 10:33 AM
REMINDER ECT SPEC TIRES!!!! Stock buggy and truck! Spec 4wd Poweredbysbc Northwest Racers 28 01-11-2008 04:12 PM
New trinty t-spec and t-spec parts car 777 micro R/C Items: For Sale/Trade 1 03-01-2005 06:53 AM
Epoch Indoor R/C Spec 1 & Spec 2 TPhalen Electric On-Road 0 10-17-2002 07:06 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 06:53 AM.


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