MTX2 problems...
07-26-2003, 12:13 AM
#1
MTX2 problems...
a friend of mine got a good deal on a complete MTX2... which had just been broken in and tuned.
when he started it for the first time, everything seemed ok, but then started to display some strange behavior after racing for a few minutes.
the engine would either unexpectedly loose all power, bog down, and stall... either whilst at idle, on throttle, whenever... just randomly
as well as unexpectedly rev its head off, and not move at all... the throttle would be completely closed. basically acted like it was running extremely lean... the weird part is it wouldnt move at all.
does anyone have any ideas to what could be going on?
when he started it for the first time, everything seemed ok, but then started to display some strange behavior after racing for a few minutes.
the engine would either unexpectedly loose all power, bog down, and stall... either whilst at idle, on throttle, whenever... just randomly
as well as unexpectedly rev its head off, and not move at all... the throttle would be completely closed. basically acted like it was running extremely lean... the weird part is it wouldnt move at all.
does anyone have any ideas to what could be going on?
07-26-2003, 01:45 AM
#2
Sounds like it IS too lean.
07-26-2003, 01:59 AM
#3
edit the post and put the name of the engine
instead of the car
because theres nothing wrong with the car(maybe the clutch)
instead of the car
because theres nothing wrong with the car(maybe the clutch)
07-26-2003, 02:06 AM
#4
i thought it would be common knowledge amoungst mtx2 owners that it uses a Nova MT12 engine.
07-26-2003, 02:07 AM
#5
wells
some ppl buy the car without an engine
like im2lazy runs an MR-12 in his MTX-2
some ppl buy the car without an engine
like im2lazy runs an MR-12 in his MTX-2
07-26-2003, 02:37 AM
#6
Tech Addict
I know quite a few people running RBs and Sirios in their MTX-2 as well.
Back to the question.....If engine performance is erradict and random, then to me it sounds like an air leak. Probably one of the seals in the carb.
Back to the question.....If engine performance is erradict and random, then to me it sounds like an air leak. Probably one of the seals in the carb.
07-26-2003, 02:44 AM
#7
Make sure it is properly sealed up with o2 safe sensor sealant and then on the next run, richen the low end after a minute or two.
It very possibly sounds like an air leak or a low end needle set too lean.
(I just put the two posts together
)
Also, check to see if the tank is bubbling more than it should. Then you would have a air leak in the tank. Replacing fuel lines would be a safe thing to do as well, since most people don't switch them out often enough.
It very possibly sounds like an air leak or a low end needle set too lean.
(I just put the two posts together
)Also, check to see if the tank is bubbling more than it should. Then you would have a air leak in the tank. Replacing fuel lines would be a safe thing to do as well, since most people don't switch them out often enough.
07-26-2003, 10:50 AM
#9
ok ill look into it... but what would cause it not to even move when its revving very hard? even when you touch the throttle the car wont move... then all of a sudden it will move
07-26-2003, 01:53 PM
#10
Do you have a centax clutch on your car? If so, it is poorly set, or malfunctioning. That would be the cause of the strange behavior when accelerating.
07-26-2003, 08:32 PM
#11
Originally posted by RHiSC
ok ill look into it... but what would cause it not to even move when its revving very hard? even when you touch the throttle the car wont move... then all of a sudden it will move
ok ill look into it... but what would cause it not to even move when its revving very hard? even when you touch the throttle the car wont move... then all of a sudden it will move
07-26-2003, 08:39 PM
#12
how is the clutch adjusted?
whats the servo dead band effect?
so occassionally it will randomly bog down... probably a tuning issue... but the part where you go to accelerate and the car doesnt move... but just sits there and revs likes its running very lean. it will still respond to throttle, but it will idle like you have the throttle half way.
whats the servo dead band effect?
so occassionally it will randomly bog down... probably a tuning issue... but the part where you go to accelerate and the car doesnt move... but just sits there and revs likes its running very lean. it will still respond to throttle, but it will idle like you have the throttle half way.
07-26-2003, 08:40 PM
#13
seems like there are many problems not only the engine
07-28-2003, 08:28 AM
#14
Tech Fanatic
if it cuts off after a few minutes in prob. means that the engine p/s needs to be resized. When the engine heats up there will be a gap if the p/s is worn out and it will shut off.
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