My almost perfect Cougar

[moth898]

I almost got my Cougars handling perfect, I run on a very variable rough suface. I'll post my setup a little later, but I'm having one problem I need help with.

At even the smallest pull of the trigger the rear end wants to swing out left and only left. No binding in the drive shaft's, any ideas?

[slow bob]

problem with your diff ?

only other things to look at are bearings but doubtfull as they should be nice and new

[lochness42]

is it balanced/symmetric left to right?
oh and check wheels - mabe unglued tyres or very unbalanced wheel?

[moth898]

Originally Posted by lochness42

is it balanced/symmetric left to right?
oh and check wheels - mabe unglued tyres or very unbalanced wheel?

Its not the wheels because I changed five sets during testing and it did the same thing all five times. The weight idea is good but I don't have a four wheel balance to test that, I'll try to figure something out. Psycochris had the same thought as I did about the thrust bearing.

Thanks guys, I let you know what happens.

[moth898]

I just finished taking apart the gearbox and got surprised at what had happened.

Dirt had gotten into the gearbox and idler gears and worn out to almost failing.

[moth898]

I'm going hi-tech, of hi-overkill, on finding out why my rear swings out on throttle. I just finished building a wieght balance, I want to se the weight distribution per wheel on the Cougar and how it affects handling. I also bought the HUDY 1/10 setup kit...if you thought your settings are perfect think again, I had spent hours tunning the car to what I thought was square, but I was off by a couple of degrees in all four corners. Its well worth the money.

I'll update this evening.

[PsycoChris]

Originally Posted by moth898

I almost got my Cougars handling perfect, I run on a very variable rough suface. I'll post my setup a little later, but I'm having one problem I need help with.

At even the smallest pull of the trigger the rear end wants to swing out left and only left. No binding in the drive shaft's, any ideas?

Had the same issue, my tranny gears were locking up. Check your thrust bearing too. Maybe a locked bearing somewhere.