Ugly mod to fix servo heating issues

[Dashz]

Okay the pics first

So I noticed when I bought this truck that the throttle servo would get REALLY hot to the point of burning to the touch after 15mins of runtime, I noticed the hot stream of air coming from engine cooling fins was aimed straight into the servo.

This happens even when you use a tuned pipe due to the shape of the cylinder and direction of air.

This HAS to happen to every single Losi 5T or Km - Rovan platform out there since the design of the layout is identical and also the parts. But I haven't heard or seen anyone facing this issue, how is that possible? It happens with the 26-29cc and with the 30+cc is worse.
Have you noticed this guys? Does this happen to any of you? Did you ever checked this after running?

 

[RcJunkie13]

Its not that ugly

 

[buzzkill]

Its not that ugly

Right ? but that CAN IS lol

 

[Dashz]

Right ? but that CAN IS lol

I knew someone was gonna say it! At least I can save some tuna inside during the pandemic hah!

 

[Dashz]

Now really, the can is because of the neighbours and most importantly I just like the power curve they have, smoother more lineal response. It is 36cc engine anyways it can drift on asphalt at full throttle.
About the question in the original post, no one really has hot servos?
I saw that some 5th scales even have a shield were I placed mine.

 

[Seandonato73]

To answer your original question. Nope. Tell your neighbor to shimmy up a cactus and rotate ??

 

[MonsterAir]

Please tell me thats not cardboard!

 

[moliver]

Please tell me thats not cardboard!

That's not cardboard.

 

[Rep732]

No issues here with my authentic 5t 2.0

 

[DougStar]

This is what I did just to keep some of the heat off the throttle servo ??
Had helped quite a bit??

 

[Dashz]

No issues here with my authentic 5t 2.0

When you give blips to the engine if you place the hand near the fins where the hot air exits, don't you feel that stream of air goes straight into the servo? I haven't had a Zenoah engine but Id say the Rovans are identical...
Im gonna have to buy a Losi to compare the air with the rovan ?

Please tell me thats not cardboard!

Thats not cardboard.

Yes it is, painted with an expensive coating that withstands water and heat.

 

[Rep732]

I do check servo heat and can't say im concerned with heat... next time I run it ill check.

 

[DougStar]

Mine use to feking ? hot? the Heder wrap and more vents ??

 

[crucialRC]

Just get the mcd heat shield. Its only like $18 or so

 

[1Coopgt]

I think Z has some competition.

Can't say I've had any issues with the Badger and I've got an expansion chamber running past it 1.5in. away.

 

[Top Dead Center]

Drive faster to overcome the air generated by the flywheel. I think the reflective tape you have on the servo is preventing it from dissipating heat.

 

[Troopermaniac]

Eww can. U racing?

 

[Dashz]

W

Just get the mcd heat shield. Its only like $18 or soView attachment 68492

What is this, looks weird, I cant find any pics or videos with the real thing

 

[evssv]

Okay the pics firstView attachment 68480
View attachment 68481
View attachment 68482So I noticed when I bought this truck that the throttle servo would get REALLY hot to the point of burning to the touch after 15mins of runtime, I noticed the hot stream of air coming from engine cooling fins was aimed straight into the servo.
View attachment 68483
This happens even when you use a tuned pipe due to the shape of the cylinder and direction of air.

This HAS to happen to every single Losi 5T or Km - Rovan platform out there since the design of the layout is identical and also the parts. But I haven't heard or seen anyone facing this issue, how is that possible? It happens with the 26-29cc and with the 30+cc is worse.
Have you noticed this guys? Does this happen to any of you? Did you ever checked this after running?

ahhh.?..nope ?....
and I've ran tuned pipes on all my 1/5's..?...

 

[Dashz]

Update for the can haters: