RB25 balancer measurements

[tommey]

Hi, can anyone please take some measurements of their harmonic balancer?
I would like to know the inner diameter and the distance between where the balancer meets the timing sprocket to where the bolt meets the balancer.
Does this make any sense?

Thank you!

[240z4u]

So you need the hole size that slides over the snout of the crank and the thickness of the balancer in the center?

I have a spare pulley on the shelf, I can measure it but I don't have machinists tools.

[tommey]

Yes that is correct!
The measurements does not have to be on micrometer level, a normal caliper measurement is good enough
Thanks !

[240z4u]

It's going to be measured with a machinist ruler, I don't have calipers! Don't worry I am pretty accurate. Ill try to remember to do it tonight.

[tommey]

Great!
Thanks!

[240z4u]

23mm "deep"
29.5 or 30mm sized centerbore

I am retarded, of course I have calipers. That's what I used.

[tommey]

Great!
Thank you!

[ska69]

tommey, any idea if it fits ca18?

[240z4u]

I have a spare balancer I would sell if you want it. PM me if you need one.