9 replies to this topic

[atf300]

i've ordered a 18t steel pinion so i can run the m special acto tuned in my m02 . the package says that a heat sink is recommended . since these heat sinks are super rare and hence expensive, my question is , how much do i need it ? i have normal 540 heat sinks but they wont fit on the smaller acto.

[OCD]

The M-Chassis motor position is pretty well buried in the chassis, which would be my guess as to why Tamiya recommended using a heat sink with such a mild motor. I think if you stick to the smaller pinion and <7.2 volts, you should be OK, but be warned I've never actually tried this IRL

I noticed that Tamiya makes heat sink 'bars' for the DF03 buggy -- Maybe something you can adapt to fit the M?

[TA-Mark]

I noticed that Tamiya makes heat sink 'bars' for the DF03 buggy -- Maybe something you can adapt to fit the M?

The DF03 has an aluminium motor mount plate. The bars fit to that mount plate.

The M01/02 has the motor fitted upto the plastic gearbox casing (like most older/cheap Tamiyas are). There might be enough room on the part of the motor that sticks out to get a DT02 heatsink on there. This works on the TA01/02. Whether this will foul the front wheel/suspension I don't know. I don't have a M01/02 to test fit it. Otherwise it's use the real hopup part from what I can see or try to copy the orginal from sheet aluminium.

[OCD]

The DF03 has an aluminium motor mount plate. The bars fit to that mount plate.

Yeah, I figured as much, but the mount plate that's included with the M01 heatsink is a convoluted little piece of aluminum that appears to be rather difficult to reproduce. The only place to draw the heat out is up through a narrow slot in the chassis, and the actual sink sits on top. Much better setup than the M03/4 cars, but no easier to make a retrofit.

Now that I think about it, I can't see a reasonable way to incorporate the heatsink bars, unless you start do some major hacking...

[atf300]

what are the dt02 heat sink dimensions . i can do some preemptive measuring before i pull the plug on that .

also since its a m02 steering wont be affected in my case.

[OCD]

what are the dt02 heat sink dimensions . i can do some preemptive measuring before i pull the plug on that .

also since its a m02 steering wont be affected in my case.

Here's a good pic of them:

53924 DF03 Heat Sink Bar Set

[atf300]

Here's a good pic of them:

53924 DF03 Heat Sink Bar Set

i meant the dt02

[OCD]

i meant the dt02

Dunno - I don't see a mount plate that Tamiya makes, although 3racing seems to do their own version:

http://www.ebay.com/...=item53ec318e11

The Acto motor doesn't protrude from the chassis at all, so I can't really see how you're going to get a clamp-on heat sink on there...

[atf300]

guess , its time to find a cheaper than 40 eur original then


UPDATE: problem solved , found one for 18eur shipped, ordered

guess i've updated all i can on my little m02 , only wish there was a way of reducing the steering slop

[TA-Mark]

This is the DT02 heatsink set (#53831):



There's a motor plate that pushes the motor out slightly, and the clip on part of the heatsink is narrow compared to most. It looked like it would fit with the silvercan type motors. That 3Racing thing looks cheap and nasty (like most of their parts).

When you do fit the motor in there, don't forget that cardboard heat insulator. They go along way to stop the gear casing melting from a hot motor.

Glad you found one at an acceptable price