Operation Rat.

[jpmatrix]

The diagnosis... Cadburys chocolate transmission

Well, I wont be racing this weekend as my car is currently dead.

Bought this car at Xmas and have been to 4 race meetings at Torch which has astroturf. 3 of those meetings I raced with a brushed set up and Nimh battery) so I reckon the car has done a couple of hours of running.

I then decided to upgrade to brushless and bought a 2nd hand speed passion esc and 7.5t v2 motor. Installed last week and ran it at the last meeting and the car was a lot faster than previous.

I taken all the precautions namely tightening the slipper until the spring is fully compressed and leaving it for a couple of days and then backing it off.

I made sure the advanced setting on the esc was set at smooth and not aggressive settings. Timing was set at 4.

So today I basically was giving the rat a blat on grass to see that everything is ok ready for this Sunday and low and behold no transmssion to the wheels.

So after fifteen minutes of dismantling I discovered this.....




This is the secondary gear or whats left of it.

Another pic...



The rat... gutted..



Pretty fooked off to be honest. have hardly run it for more than 1 hour with a brushless set up and the transmission melts.

Anyone else had this and is there an upgrade for this gear?

Or I could just burn it

regards

James

[minke]

Powered by a flux capacitor

This is out of stock right now but may be what you need
http://www.tcmodels.net/index.php?pa...mart&Itemid=71

[jpmatrix]

Originally Posted by minke

Powered by a flux capacitor

This is out of stock right now but may be what you need
http://www.tcmodels.net/index.php?pa...mart&Itemid=71

Thank you. So the bearings just fits inside the gear?
Looks different internally or is that the way its macchined out.

[minke]

I've never had to fit one myself, but should be a straight swop. The next time I order from them I'll add one to the cart anyway and give it a shot.

[Tom3012]

Touch wood not had a problem with mine, ran it loads with a 6.5 and 50c lipos so loads of punch, been spot on...?

Question... Why so much grease in your gearbox??

[minke]

My instinct tells me the slipper may have been too tight. Fast acceleration with too tight a slipper could have caused it, though the spur usually goes first. May be a one off.