engine cutting out in mid air?
#1
engine cutting out in mid air?
I have and rc8 rtr with the .28 pro engine in it. Today it started reving real high and shutting off in mid air. Almost everytime I hit a decent sized jump it would just rev out like I was at full throttle the die. I have about 2 gallons through it. I haven't ran it hot, about 210-230, and have it tuned pretty good.
For the life of me I can't figure out whats wrong. Does anyone have any ideas?
For the life of me I can't figure out whats wrong. Does anyone have any ideas?
#2
you're to lean on bottom. the high end is most likely to rich, masking the lean issue on bottom. a common issue.
Last edited by jrwoodchuck; 04-15-2010 at 07:39 PM.
#3
Tech Regular
Yup, lean on bottom.It could be an air leak but probably just misstuned. Good luck.
#4
LEAK
+1 on air leak check back plate common place for leaks and make you clean your air filter too.
#5
Quickest help ever. Thanks guys, I'll richen the bottom a little and see if that fixes it. I checked for airleaks today and found one. My tube going to the exhast had gotten torn on the flywheel. I replaced that though and ran it for about 20 seconds and my last humpack died. Hopefully that was my problem. My bottom end could be lean though. It's set about 2 turns in from the factory settings, but until it got in that far, the car wouldn't run. I'll back it up some and see if that helps me.
#6
Tech Apprentice
That was definitely the issue. Throw away the current glow plug. The coils will be distorted from running lean. It will not tune properly. Throw a new plug in it and start over.
#7
Tech Elite
iTrader: (27)
Quickest help ever. Thanks guys, I'll richen the bottom a little and see if that fixes it. I checked for airleaks today and found one. My tube going to the exhast had gotten torn on the flywheel. I replaced that though and ran it for about 20 seconds and my last humpack died. Hopefully that was my problem. My bottom end could be lean though. It's set about 2 turns in from the factory settings, but until it got in that far, the car wouldn't run. I'll back it up some and see if that helps me.