View Full Version : 3.3 about to blow my head off...
05-20-2011, 02:37 AM
hi guys so i been trying to get the jato to run again...long story short i let it sit too long in the garage over winter...engine was locked up..took it apart wd-40 got it to run...for 30 secs.....stalled.....so then noticed it wouldnt even prime.(prob gunk in carb right...?)..ok completely replaced the carb fuel lines and added fuel filter...also replaced glow plug...when i put the starter on it the lights glow green for engine and glow plug...engine turns over and now when i primed it for first time the gas made it to carb no problem....IT WONT START STILL only thing that i can think of now is bad luck bad batch of nitro (20% traxxas) or maybe my glow plug really isnt getting a "glow" the blue wire that goes to glow plug not working properly???HELLLLP!!!
and i forgot to mention i did set the low and high end back to factory setting high end about 3.75 turns out low end turned out to be flush...
05-20-2011, 04:05 AM
Is it a new bottle of fuel, or the old stuff? The stuff does expire. I would say take the plug out, spray some WD40 down the hole, hold a cloth over, use the EZ start for 5 seconds, do this again, then spray, put in a dodgy glow plug, and use the EZ start, without the glow plug wire connected for about 5-10 seconds, until 90% of it is gone. When you leave nitro fuel sitting in the engine, it turns really gunky.
After this, hook up this fuel line, put in a new glow plug, and prime it, and try and start it.
Otherwise you may need to take apart the engine, and clean it thoroughly. Also make sure that nothing is blocking the exhaust.
To see if your glow plug it working, put the wire on it, then just hold ito n the engine and use the EZ start, it will work instantly if nothing is wrong.
05-20-2011, 10:28 AM
I tried dat w glow plug got no glow I'm thinking it's the blue wire :( I'll try it again tonight thanx!
05-20-2011, 10:47 AM
Well a new set of wires is like $5-$10, can't hurt. Make sure your yellow wire is connected.
05-20-2011, 01:41 PM
it it could be the wand do you have a separate igniter you can try
05-20-2011, 09:19 PM
blue wire is 1.75 or so
05-20-2011, 09:39 PM
as bonvo said the best way to check try a separate igniter just use the plug igniter an use the wand to start the engine , my jato had the same exact problem and i fixed like that, did you check the needles?, they to can be blocked no just the fuel lines
05-20-2011, 10:36 PM
Well the problem was that the stock needle positions don't work on my car I have to unscrew way more to get the gas to flow now question is where do I start for a tune? Today I got new gas new wire n plug somehow I fried the one from yesterday.....
05-21-2011, 07:04 AM
Are you sure you got the needles set correct?
05-21-2011, 02:22 PM
edgar did you take apart the carb? it look like still some goop blocking the part where the needles go thats why you have to opened the needles way out
05-21-2011, 06:57 PM
Well I feel like n idiot asking this but do I really have to take engine out to take of the car? I can't figure out a way to reach that one nut that holds it to engine n I'm sure needles set 4 out high end 1 3/4 low end or flush......
05-22-2011, 02:30 AM
Make the LSN flush. Also, how open is your idle?
Getting that nut that holds the carb is near impossible without taking the engine out, try using a pair of needle nose pliers maybe.
05-22-2011, 05:33 PM
well today is a bust it was really nice out earlier was working my camaro doing brake job...started pouring rain again.... so still waiting on a nice day to tune the carb....
and the idle is open pretty good i dint measure but deff can see the opening i tried pushing in the flap on the carb and it still stays open so the i think the idle screw is in far enough...
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