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-   -   glo plug prolems (https://www.rcuniverse.com/forum/rc-nitro-stadium-trucks-243/9079767-glo-plug-prolems.html)

MPevine11 09-08-2009 06:19 PM

glo plug prolems
 
getting very annoyed, rusler starts right up, I can run the truck with the glo warmer in when but i take it out it dies. the motor is a 3.3, yes the glo plug is brand new, and the motor has alot compression left almost like its new.


please help, anything helps!




thanks;
mike

MCSRacing 09-08-2009 07:25 PM

RE: glo plug prolems
 
it is possible to get a bad plug out of the package ...... try running a OS LC3

MPevine11 09-08-2009 07:35 PM

RE: glo plug prolems
 
pulled the plug out of my jato it did the same thing, put it back into my jato and the jato ran fine....... im so confused.....

MPevine11 09-08-2009 07:48 PM

RE: glo plug prolems
 
ill try those plugs. bu what else could be the problem?


are these the plugs? and is this price fair?
also will they work in the 3.3?

http://cgi.ebay.com/O-S-OS-MAX-18-TM...d=p3286.c0.m14

MPevine11 09-09-2009 08:00 PM

RE: glo plug prolems
 
B.U.M.P



any help here?

kzimmerman 09-10-2009 07:35 AM

RE: glo plug prolems
 
Sounds like it might be too lean. Try opening up the low speed needle 1/8th a turn and try it again. Also, is the glow plug element straight? It should look like a spring, if it's bent then it needs to be replaced.

quietnas1 09-10-2009 08:04 AM

RE: glo plug prolems
 
Is it shutting off while it is still idleing? Try going back to factory settings and start tuning from there again. If the plug is running fine in your Jato then it is a tuning issue with the motor.

dittch 09-10-2009 08:56 PM

RE: glo plug prolems
 
Your low speed needle may be a bit too lean. In New Hampshire and it's getting cooler as fall approaches and you're going to find you will need to run richer than you did in the warmer summer. Turn it open 1/2 turn more and see if this helps.

What is the condition of your fuel? Is it newer? Older fuel that was stored improperly can absorb moisture and may cause this problem.

crispyspa 09-11-2009 01:27 AM

RE: glo plug prolems
 
copied and pasted from a website:

Now why does nitro engine stay running? Presuming your carburetor is tuned correctly. This is where science comes into play. There is heat generated in the combustion cycle. This heat is called "the catalytic reaction".

A catalytic reaction occurs causing platinum to glow in the presence of "methyl-alcohol," or "methanol". This catalytic reaction will occur on it's own without any outside power source. All of this only comes onto play during low rpm and when there is not enough heat being generated to burn all the fuel vapor. The catalytic reaction changes as rpms and temperature rise. This has just been a very basic explanation of how a glow plug works at low rpm or idle.
If there is no/little reaction of the platinum to the methanol, then you have to assume that you are lean as kzimmerman and dittch said.

Snowraver1 11-20-2009 04:37 PM

RE: glo plug prolems
 
I was having a similar problem and switched the glowplug for a warmer one.  Seemed to do the trick.

Snow

Chris_RC 11-20-2009 05:56 PM

RE: glo plug prolems
 
DO NOT get the OS plugs. Their taper is different and will ruin the head button. Say you got an engine without a glow plug, you could run an OS IF you never switch back. OS's also have a shorter body which means you won't get the right compression/performance with OS plugs.

bjonaiti 11-22-2009 07:21 PM

RE: glo plug prolems
 


ORIGINAL: Chris_RC

DO NOT get the OS plugs. Their taper is different and will ruin the head button. Say you got an engine without a glow plug, you could run an OS IF you never switch back. OS's also have a shorter body which means you won't get the right compression/performance with OS plugs.
Chris: Gotta say that I've never had an issue like that. Very interesting though. I interchange different brands of plugs (for no specific reason) - - but I have to say that OS is on the top of my list.


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