Pulling the pins out of a flywheel to machine it

[RustspecS13]

So I chucked my flyhweel in on the brake lathe at work, and low and behold it works! Except the whole hitting the locating pins part. I tried vice grips and they just slip and mar the pin.

Is there a special tool for taking it out or am I missing something?

So if this doesnt go right I'll be needing a stock RB20DET flywheel or a steel lightweight flywheel for a decent price.

Maybe I'll try to take a long lunch break at work tomrrow and see if I can take it to a place that machines flywheels and see if they can pull them.

~Alex

[slyedog240sx]

You ruined your flywheel.A brake lathe is not accurate enough to tolerance for a flywheel.It must be a perfectly flat surface and machined to .050 tops.You'll never get that accurate and ever get it flat enough.Throw it away and buy a new one.

[SirSilvia]

now... I have an auto... and no flywheel obviously. NOR have I ever worked on a manual transmission. butI have NEVER heard of anyone ever turning their flywheel.I also would think it would be the kind of the same as brakes.Meaning that when you replace/turn the rotors, you need to replace the pads. (in this case the clutch)Because if the flywheel needs evened out, the pucks on the clutch will more than likely have grooves in it which would only eff up the flywheel again.

[RustspecS13]

Considering the machine is 2 months old and has turned about 4 rotors, and being a hunter machine, yes its pretty accurate. Plus when theres runout specs like .0006 and .003 on the rotors Im sure the machine can handle .050.

I had my ka's flywheel machined when I did a clutch in it last and it turned out great. I also had carquest do it and it ended up being like $48 which is excessive imo.

I do plan on buying another good used flywheel or a new steel light flywheel soon but I dont have the coin right now for a $375 flywheel.

And machining flywheels is pretty common. I do not like machining rotors on my cars I drive hard, but flywheels are very very thick. And yes I have a new clutch to go with it. DXD southbend FTW. You don't need to lecture me on that Im a service tech.

So any one have actual advice for me on removing the flywheel pins? Or am I screwed.

~Alex

[OutToWinPAHC]

You don't cut flywheels. They are ground back to specs, cutting them ruins them. Its a special process for flywheels. Its ruined.

[driftneil]

Nah, your good. Just heat it up a bit. Keep a pair of vice grips on it, and twist and turn. Mine pulled out, no heat. But it was pretty old....Good luck

[slyedog240sx]

You don't cut flywheels. They are ground back to specs, cutting them ruins them. Its a special process for flywheels. Its ruined.

My point exactly.But on top of that by the time that you get it straight you can't shim it enough to compensate for what was shaved off.But he is a service tech that is smart enough to turn a flywheel on a BRAKE lathe so he knows.Heat is the only way to remove the alignment pins like driftniel said, but why even waste the time.

[RustspecS13]

The only reason Im turning it is because its free and Im replacing the flywheel soon any way. Im in a rush because Im trying to get my swap done this weekend. That may or may not happen.

Im on the fence for waiting another week to save up for a flywheel or finding another asap. But either way a flat flywheel with the wrong finish is better then a rusty flywheel with lots of low spots in it.

And I learned something new about the finish. Dont just tell me some thing wont work tell me why it wont. Thanks for that and I'll keep it in mind for next time.

~Alex

[RustspecS13]

So I had my dad drop off the flywheel at carquest to get machined. It turned out great, but the guy said he had to machine so much I needed a .025 spacer between the flywheel and crank. And they want to charge me $17 for it.

Im not sure about running the spacer with a turbo engine at high rpms with a stage 2 dxd southbend clutch. I mean only .025, that should be easily adjustable with either the clutch pivot point (I believe the PO included a nismo piviot with the swap) or just adjusting the pedal, right?

Im worried about the flywheel bolts coming loose or the flywheel just vibrating at the track, clutch kicking and all that. I know the best thing to do a get a new flywheel. But another stock flywheel might be in the same shape and a good light flywheel is $300-400+

~Alex

[1991ls13]

you guys are retarded! lol there is a tool to remove the pins http://www.cylinderheadsupply.com/kl1575.htmlyou can turn a flywheel down but you must surface grind it to correctly do it . its to make the clutch disk bed in correctly.slyedog240sx. . dont talk tech anymore your giving bad info.also you can turn a flywheel on a brake lathe but you need to give it a non directional finish. not the best but works okalso i have never had to compensate for pivot point in any of the cars i have built.....trust everybody on the internet!........

[law]

Well good luck with that. As a Nissan tech I have learned that you dont really want to resurface Nissan flywheels. Most times not all you end up with chatter when the surface mates with the clutch.And you dont use a BRAKE LATHE to do it.

[slyedog240sx]

you guys are retarded! lol there is a tool to remove the pins http://www.cylinderheadsupply.com/kl1575.htmlyou can turn a flywheel down but you must surface grind it to correctly do it . its to make the clutch disk bed in correctly.slyedog240sx. . dont talk tech anymore your giving bad info.also you can turn a flywheel on a brake lathe but you need to give it a non directional finish. not the best but works okalso i have never had to compensate for pivot point in any of the cars i have built.....trust everybody on the internet!........

ok f***tard bring a thread from the dead and my machinist told me everything i said and he has been doing this longer than me and you have been alive.Anytime you grind a flywheel you need to shim it.And if you know so much explain how you can dial the lathe off the face of the flywheel.Plus the flywheel will still not have a smooth enough finish and will most likely chew the disc up.This is straight from sperry machine.You want to argue call sperry machine and talk to them. 319-390-8636 and ask them.

Modified by slyedog240sx at 2:45 PM 5/7/2009
Modified by slyedog240sx at 2:49 PM 5/7/2009