Used Crankshaft Value

[Benson]

In 1989 I had a 0.030 undersized Model B "C" crank (which was drilled for oil pressure) flame sprayed back to Standard.

It worked fine but I did not have many miles to test it before the cracked deck (This was a B block) forced it into retirement after several attempts to repair the cracks. Only 5000 or 6000 miles.


Flame spray companies still show up on Google today.

 

[ModelA29]

Here's a thought If it's a junk crankshaft you could use it to hold a mailbox if you have mailboxes at the side of the road you could use it as a door stop Be proud of your model A. pride and ownership!!!

Not a great shot (from Google maps). You can even put wheels on it......


Just my opinion - Model A parts have local value. If you're the seller and spend the time to evaluate, list, sell, pack, ship, etc you've lost money. If you're the buyer only pristine or rare parts are worth going to the trouble of online sales. An unknown engine on a pallet in pieces for even $20 doesn't justify additional crating and shipping costs to buy.

 

[BRENT in 10-uh-C]

I should have measured months ago. The thing is .030" under on all journals and needs clean up. Insert bearings only go to -.030", so pretty useless, except as art.

At least I don't have to haul it around at Carlisle or Hershey.

Babbitt can go any size
I know they made .040 rod bearing inserts because I have a set

A couple of things to consider. I own a crankshaft grinder, and what I can tell you is the hardening of a Model-A Crankshaft is usually gone when the pins have been ground to 0.020" undersize. This is because of the process that Ford used. You can sometimes get away with that size on cast bearings however you are taking a real risk in using a Crankshaft pin undersized by 0.020" because it prematurely wears the Crankshaft's pins. The Cast Bearing is much softer and forgiving than what an Insert Shell & bi-metal bearing material will be on a soft journal pin.

I have (slowly) been reorganizing my Machine Shop to have room for acquiring a Crankshaft Welding machine. Using a submerged arc process, if I weld each of the journal pins pack to standard sizes, the wire I would use should basically bring the pin hardness to around 40 Rockwell which should be plenty hard for cast bearings to run a long time. The benefit for me welding & grinding each Crankshaft back to standard sizing is I would only need to cut & size Connecting Rods to one size, and my Line Boring would be done with my cutters repeatedly set at one size.