4AG Flywheel step height?

[YLD-16L]

As per title, is the 212mm 4AGE flywheel a 0.5mm or 1.0mm step height on the friction surface?

Thanks in advance.

+Rep for conclusive answers, confirmation from a Toyota manual would be most appreciated.

Cheers.


PS, searched this site and no results, searched the web and no results other than it is crucial to get it right.

[YLD-16L]

Word around the traps is 0.5mm step.

Thanks me +rep.

[oldeskewltoy]

How about a photo of a 20V blacktop flywheel.....



.... can't say how much... but it does show a step

[YLD-16L]

Pretty hard to tell (impossible actually) but it looks a little more significant than 0.5mm.

[TooF]

i thought there would be a spec in the BGB but i just looked, fwiw i cant find any step spec there. the only measurement related to the fly is the runout at 0.1mm

[HighLife]

I've got one sitting at home, I can check tonight for you if you like. I have just had the surface machined but it shouldn't make that much difference?

BTW - just so I get it right, what exactly do you mean by step height? The difference in height of the clutch mating surface to the area which the pressure plate bolts to?

[YLD-16L]

I've got one sitting at home, I can check tonight for you if you like. I have just had the surface machined but it shouldn't make that much difference?

BTW - just so I get it right, what exactly do you mean by step height? The difference in height of the clutch mating surface to the area which the pressure plate bolts to?

Check for interest sake mate.

The step difference can make a big difference to clutch performance, so it has to be correct.

Step height is the height difference between the surface where the friction plate contacts and the surface the pressure plate bolts to.

[The Real Roadrunner]

The step difference can make a big difference to clutch performance, so it has to be correct.

hence the reason why the only way to do it properly is to take the clutch to the machinist and get the diaphram to be parralell when its bolted down tight.

it's the only real way to be 100% sure its correct

cheers
linden

[DX20VT]

All toyota flywheel step heights are 0.5mm, except the obvious like 4AGZE which is like 20mm or so.

[c2888]

4AGE
http://exedy.com.au/SpecSheet.aspx?S...eetRowId=39482

"Flywheel Profile Dimension +0.5mm"

4AGZE
http://exedy.com.au/SpecSheet.aspx?S...eetRowId=39479

"Flywheel Profile Dimension -18mm"

There are some people that build clutches with different specs, so check with your supplier

[HighLife]

Just measured mine, its about 0.4mm after being machined. I didnt think much about it until you've mentioned it now and I think about. Should I be concerned?

[oldeskewltoy]

Just measured mine, its about 0.4mm after being machined. I didnt think much about it until you've mentioned it now and I think about. Should I be concerned?

a lot depends on the torque of your engine....

[DX20VT]

a lot depends on the torque of your engine....

playing with the flywheel step is not a good way of playing with the clutch,
as you will still only end up with pressure plate pressure on the plate,
but may run into problems where it wont release properly.

[jeffro ra28]

All toyota flywheel step heights are 0.5mm, except the obvious like 4AGZE which is like 20mm or so.

Wrong........... Iv come across various older Toyota flywheels with a 1mm step. Saying All toyota flwheels are .5mm is just a bit of an assumption

[DX20VT]

Wrong........... Iv come across various older Toyota flywheels with a 1mm step. Saying All toyota flwheels are .5mm is just a bit of an assumption

Ok, most then,

but all the 4AGE/4AFE/7AFE stuff is.