• Welcome to RCTalk! 🚀

    Join the #1 RC community where hobbyists connect, share, and get expert advice on RC cars, trucks, boats, drones, and more!

    • Friendly & passionate RC enthusiasts
    • RC tips & troubleshooting
    • Buy, sell & trade RC gear
    • Share builds & upgrades

Glow plug

This site may earn a commission from merchant affiliate
links, including eBay, Amazon, and others.

Raiden101

RCTalk Talkaholic
Messages
458
Reaction score
0
Points
101
Location
South Florida
RC Driving Style
  1. Bashing
  2. Racing
I know it's been asked, but I can't find it.

My rig has been burning up glow plugs kinda quickly. It's not too lean, only running like 225* or so. I was working on getting the temperature up, and it dies and wouldn't start again. Changed the plug and it cranked first time.

My question is, should I try a colder plug, or is there something else wrong?
 
Yeah it sounds like you're putting too much faith in the temp gun. I would richen it little by little til it slows down some then lean it back a hair. A colder plug won't make it run colder, it'll just rev higher and idle worse.
 
It was actually running really bad before I started leaning it out. It runs really well now, a little bogging on take off, but I can't complain about high speed runs.

Just so I'm sure, where is the best place to take temps? I've been taking them straight down the inside of the cooling head
 
You may have to work on the lsn and idle now. Straight down at the plug is ok, but I take them at the side of the head, where they read the hottest. Just read them on the head not the exhaust! LOL.
 
Check your fuel lines . The exhaust puts pressure to the fuel tank if u have a leak it will make it hard to start and it will run bad.
 
Last edited:
The exhaust actually doesn't ever really read higher than like 200. I don't check it a lot, so I can't say that I'm 100% on that
 
Is it possible that I've just had bad plugs? I know someone with a 2.5 rustler that has like 2 gallons through it and hasn't had to change the plug yet
 
What i ment was that the pressure from the exhaust pushes the fuel to carb. if u have a air leak in your in fuel line it will run bad and be hard to start.
 
I know I'm revivng the dead here, but I still burn up plugs worse than anyone I know with a truck. I usually run the traxxas plug or an O'Donoll (can't think how to spell it now).
 
mine doing the same .i thought i had a bad batch .can't find out why myself yet .the one in my savage has been in for 2 gallons and still running.
 
i set the carb back to factory setting and it still keeps blowing the plugs .i have brought 15 plugs now so I've had it with the thing .i dont understand what could be wrong .I've not even run half a gallon in the truck yet .thats how new the engine is.:angry:
 
Back
Top