Traxxas Revo 2.5R reaches to 280 degrees at idle

[trouling@gmail.com]

When breaking in this new motor, I followed Traxxas break-in procedures
as closely as possible. However, shortly after starting every few
minutes I had to give the motor a break due to heat. Thinking the motor
would be better after break in, I installed a micro temp circuit (
http://www.venom-racing.com/instructions/vst/revo/index.htm ) and
followed through with the break in process. I'm now on 6 tanks of gas
(125cc) and still have a motor the triggers the fail safe circuit after
a few minutes of fun. The temp trigger point is set at 285 degrees F.
Now suspecting air leaks I found a rather large obvious crack between
two pieces of plastic molding that houses gears between the starter and
back of the crank quality. Good quality high temp silicon sealing the
crack seams to help but the motor is still overheating. I'm unable to
find any visual air leaks at this point but the motor still hits 280
degrees at idle. Should I send this Revo back?

[bill.jenner@gmail.com]

When breaking in this new motor, I followed Traxxas break-in procedures
as closely as possible. However, shortly after starting every few
minutes I had to give the motor a break due to heat. Thinking the motor
would be better after break in, I installed a micro temp circuit (
http://www.venom-racing.com/instructions/vst/revo/index.htm ) and
followed through with the break in process. I'm now on 6 tanks of gas
(125cc) and still have a motor the triggers the fail safe circuit after
a few minutes of fun. The temp trigger point is set at 285 degrees F.
Now suspecting air leaks I found a rather large obvious crack between
two pieces of plastic molding that houses gears between the starter and
back of the crank quality. Good quality high temp silicon sealing the
crack seams to help but the motor is still overheating. I'm unable to
find any visual air leaks at this point but the motor still hits 280
degrees at idle. Should I send this Revo back?

[trouling@gmail.com]

When breaking in this new motor, I followed Traxxas break-in procedures
as closely as possible. However, shortly after starting every few
minutes I had to give the motor a break due to heat. Thinking the motor
would be better after break in, I installed a micro temp circuit (
http://www.venom-racing.com/instructions/vst/revo/index.htm ) and
followed through with the break in process. I'm now on 6 tanks of gas
(125cc) and still have a motor the triggers the fail safe circuit after
a few minutes of fun. The temp trigger point is set at 285 degrees F.
Now suspecting air leaks I found a rather large obvious crack between
two pieces of plastic molding that houses gears between the starter and
back of the crank quality. Good quality high temp silicon sealing the
crack seams to help but the motor is still overheating. I'm unable to
find any visual air leaks at this point but the motor still hits 280
degrees at idle. Should I send this Revo back?

[trouling@gmail.com]

When breaking in this new motor, I followed Traxxas break-in procedures
as closely as possible. However, shortly after starting every few
minutes I had to give the motor a break due to heat. Thinking the motor
would be better after break in, I installed a micro temp circuit (
http://www.venom-racing.com/instructions/vst/revo/index.htm ) and
followed through with the break in process. I'm now on 6 tanks of gas
(125cc) and still have a motor the triggers the fail safe circuit after
a few minutes of fun. The temp trigger point is set at 285 degrees F.
Now suspecting air leaks I found a rather large obvious crack between
two pieces of plastic molding that houses gears between the starter and
back of the crank quality. Good quality high temp silicon sealing the
crack seams to help but the motor is still overheating. I'm unable to
find any visual air leaks at this point but the motor still hits 280
degrees at idle. Should I send this Revo back?

[bill.jenner@gmail.com]

My new Revo at idle is heats up to 280 degrees. I performed motor break
in by closely following the included procedures. In the process, I had
to shut it down every few minutes because of heat. I paced a micro temp
sensor on board for monitoring:
http://www.venom-racing.com/instructions/vst/revo/index.htm. I thought
the engine would be more stable after break in and the heat issues may
go away. Now, the motor runs strong but after a few minutes of play the
heat fail safe circuit kicks in (currently set to go off at 285
degrees). Motor inspection reveled a problem in the plastic molding
covering gears between the starter and the back of the crank. I used
high temp RTV silicon to cover the discovered large gap where the two
pieces of plastic molding that were never properly bonded together in
one spot. I cannot find any other visual air leak problems. However,
heat issues still continue. I've now ran 6 125cc tanks through it, and
like I prevously mentioned, it's reaches 280 degrees at idle. Should I
take this lemon back?

[DanTXD]

<bill.jenner@gmail.com> wrote in message
news:1136705008.756443.138480@f14g2000cwb.googlegr oups.com...
> My new Revo at idle is heats up to 280 degrees. I performed motor break
> in by closely following the included procedures. In the process, I had
> to shut it down every few minutes because of heat. I paced a micro temp
> sensor on board for monitoring:
> http://www.venom-racing.com/instructions/vst/revo/index.htm. I thought
> the engine would be more stable after break in and the heat issues may
> go away. Now, the motor runs strong but after a few minutes of play the
> heat fail safe circuit kicks in (currently set to go off at 285
> degrees). Motor inspection reveled a problem in the plastic molding
> covering gears between the starter and the back of the crank. I used
> high temp RTV silicon to cover the discovered large gap where the two
> pieces of plastic molding that were never properly bonded together in
> one spot. I cannot find any other visual air leak problems. However,
> heat issues still continue. I've now ran 6 125cc tanks through it, and
> like I prevously mentioned, it's reaches 280 degrees at idle. Should I
> take this lemon back?
>

Having been in on the breakin of a few Traxxas products now - I've not yet
encountered one that isn't set far too lean from the factory. Richen the
high end needle, a lot.

--
Dan

[Brian]

If it's that hot at idle, open the low speed needle a bit. That will
help. The 2.5 seems super sensitive to LSN settings.

In article <1136736982.584632.117980@o13g2000cwo.googlegroups. com>,
bill.jenner@gmail.com says...
>
> When breaking in this new motor, I followed Traxxas break-in procedures
> as closely as possible. However, shortly after starting every few
> minutes I had to give the motor a break due to heat. Thinking the motor
> would be better after break in, I installed a micro temp circuit (
> http://www.venom-racing.com/instructions/vst/revo/index.htm ) and
> followed through with the break in process. I'm now on 6 tanks of gas
> (125cc) and still have a motor the triggers the fail safe circuit after
> a few minutes of fun. The temp trigger point is set at 285 degrees F.
> Now suspecting air leaks I found a rather large obvious crack between
> two pieces of plastic molding that houses gears between the starter and
> back of the crank quality. Good quality high temp silicon sealing the
> crack seams to help but the motor is still overheating. I'm unable to
> find any visual air leaks at this point but the motor still hits 280
> degrees at idle. Should I send this Revo back?
>
>

[mike]

Ditto all the others, my T-Maxx was way lean from the factory, open it up a
turn at least and see what happens.
MIKE


<bill.jenner@gmail.com> wrote in message
news:1136705008.756443.138480@f14g2000cwb.googlegr oups.com...
> My new Revo at idle is heats up to 280 degrees. I performed motor break
> in by closely following the included procedures. In the process, I had
> to shut it down every few minutes because of heat. I paced a micro temp
> sensor on board for monitoring:
> http://www.venom-racing.com/instructions/vst/revo/index.htm. I thought
> the engine would be more stable after break in and the heat issues may
> go away. Now, the motor runs strong but after a few minutes of play the
> heat fail safe circuit kicks in (currently set to go off at 285
> degrees). Motor inspection reveled a problem in the plastic molding
> covering gears between the starter and the back of the crank. I used
> high temp RTV silicon to cover the discovered large gap where the two
> pieces of plastic molding that were never properly bonded together in
> one spot. I cannot find any other visual air leak problems. However,
> heat issues still continue. I've now ran 6 125cc tanks through it, and
> like I prevously mentioned, it's reaches 280 degrees at idle. Should I
> take this lemon back?
>