ATI super damper bolt

[sneakypete]

For those running the ATI super damper, im aware that you have to machine the stock crank pulley bolt to make it work. I got a new one from toyota just incase i mess it up.
but what i need to know is:
what do i use to remove material (rotory tool, sanding, etc)?
what material needs to be removed?

couldnt find a thread on it

thanks
-pete

 

[figgie]

you are supposed to MACHINE it down.

not sand it.

if i recall it was .1 of an inch give or take.

 

[upgradedsupra]

I guess the off the shelf units all need machining it seems.

 

[sneakypete]

I guess the off the shelf units all need machining it seems.

so i have to bring it to my machine shop?
what has to be machined? the length, or material under the head of the bolt?

thanks
-pete

 

[IJ.]

The largest diameter on the flange.

 

[starscream5000]

You have to turn the diameter of the flange down. The flange on the stock bolt is too wide for the ATI dampner.

 

[sneakypete]

i dont have the bolt in front of me... but i assume you either mean the material between the threads and the head of the bolt? or by the flange, you mean the round plate which sits flush on the pulley itself?
will it be obvious when i get home and test fit the bolt on the pulley?

sorry for the stupid questions.... but i dont want to f this up

-pete

 

[IJ.]

Yes it will be obvious.

 

[sneakypete]

thanks

 

[sneakypete]

i just had a big big blooper. i was carrying the damper to the car with the crank pulley bolt so i could bring them both to my machinist tomorrow morning, and then the styrofoam packing slid right out of the box with the damper. the damper hit the ground with the styrofoam and started to roll down the driveway (not too far).
now there are scratches along the edge of the damper where the timing marks are.

do you think i could have messed anything up? would it be out of balance?

im so pissed. im beside myself here.

 

[figgie]

i just had a big big blooper. i was carrying the damper to the car with the crank pulley bolt so i could bring them both to my machinist tomorrow morning, and then the styrofoam packing slid right out of the box with the damper. the damper hit the ground with the styrofoam and started to roll down the driveway (not too far).
now there are scratches along the edge of the damper where the timing marks are.

do you think i could have messed anything up? would it be out of balance?

im so pissed. im beside myself here.

lucky for you that they are internal balanced.

if you look at the back part of the damper. You will see a zinc oxide plate. That is the balancing plate. Man you need to be careful! Thankfully the machine aluminum is nowhere near as "breakable" as the metal that they use on the OEM pulley.

 

[upgradedsupra]

so i have to bring it to my machine shop?
what has to be machined? the length, or material under the head of the bolt?

thanks
-pete

Only the off the shelf units need this modification. Mine was a custom part so it was made by the spec I gave them.

Yes, lucky you for not damaging the pulley even worse.

 

[sneakypete]

ok cool. thanks guys
i was freaking out