Measuring crankshaft runout, Wondering how you guys measure crankshaft runout Options

[Langing]

BGB says the first thing you do when you are checking whether your crankshaft is within specs is to measure the runout. The illustration in BGB shows the crank suspended at each end main journal using a pair of special V-blocks and a dial indicator measuring the runout at the center journal. Looked simple, and pretty easy to do. I have a dial indicator and just needed V-blocks. So, I began a search for a pair of V-blocks.

So, ok, who has been through this agony and can help me do this otherwise 'simple' job? I called a local dealership and they told me they charge $115/hour (or it might have been $150/hr, I wasn't listening so good after I heard the first hundred). Honestly, I would like to do it myself, but I cannot find suitable V-blocks. Could I just make a wood fixture support each end, made so that they have a circular place on them so the crank is level and let it rotate on wood?

[enderswift]

Nope, you'll never be able to make anything from wood precise enough, particularly for total run-out. Better off removing all but the end bearings from the block and spinning the crank on just two mains

In any case, as someone who has blue printed a 3s prior to full rebuild, I can just about guarantee that your crank is fine. Toyota induction hardened the journals for petes sake...talk about overkill

S