Tipped over crank, should I worry?

Crank is bbf eagle 4340. Had laid on floor stood up on its end and it got knocked over unfortuantley. Floor is concrete covered by very thin carpet. There is no visible damage , can't even tell where it hit.
Should I worry about this crank?
Feel very stupid for saying this happened, I think my heart stoped when it fell
Thanks

I have had that to happen on a standard ome crank it did not hurt it I think you should be fine unless you drop it a few feet before it hits the floor

I lost one outta the back of the truck doing 70 on the freeway and it was fine.......... just kidding but I have knocked one over before and it was ok , but yea you feel your chest jump for sure , the second time it ever happened I was being a fool and cracked open a nitrous bottle for some friends to see and I didn't have my footing right and lost my balance when it pushed me back into a crank which unfortunately fell on my new dominator carb and got a good scrape on my back and elbow to boot just glad I didn't loose control of the bottle.

I lay mine down. But i would just check the journals good and you will be good too go. Laying them down doesn't hurt them,I assembled a 4.15 offset ground crank in a 514 combo for a guy and we dug the crank out from under a work bench where it had been for 8yrs. I took it to the machine shop and it checked out true as could be.

if it is a 4.5 stroke long snout 4340 crank ... its for sure ruined!!!! best to get rid of it, I'll help ya out and take it off your hands for say...
$50.00...

all kidding aside, check it for nicks, your probablly fine...

couldn't hurt it ,hitting it with all your mite with a 8 lb sledge on one of the counter weights!!!!
Frank

PS to check if it's cracked = hit a counter weight with a 5 lb hammer if the crank has a ring to it it's good !! a crank with a crack sounds like hitting a nail into wood !
Frank

rocketpony wrote:Crank is bbf eagle 4340...stood up on its end and got knocked over. Floor is concrete...very thin carpet. Should I worry about this crank?

 Oh noooo!!!

That thing probably has more fractures in it than a Bakken oil field! (<---- I just made that up )

U realy think it has fractures in it? How would I check?

the Thing that totally amazes me is that you guys set it out in the floor I always put mine in a corner under the bench, SO you can't knock it over either that or hang it on a crankshaft hanger under the bench....
the way to check it for cracks or fractures it to magniflux it with wet or dry flux

If a carpeted floor cracks it,it shouldn't go in a engine anyway. If it was good before the fall, you should be fine.

the Coug wrote:the Thing that totally amazes me is that you guys set it out in the floor I always put mine in a corner under the bench, SO you can't knock it over either that or hang it on a crankshaft hanger under the bench....
the way to check it for cracks or fractures it to magniflux it  with wet or dry flux

crankshaft hanger? What the flux a crankshaft hanger?

rocketpony wrote:U realy think it has fractures in it? How would I check?

No, no, no.   It's a joke, hence the   "    "


You're forged steel crankshaft is fine.....

cool40 wrote:

the Coug wrote:the Thing that totally amazes me is that you guys set it out in the floor I always put mine in a corner under the bench, SO you can't knock it over either that or hang it on a crankshaft hanger under the bench....
the way to check it for cracks or fractures it to magniflux it  with wet or dry flux

crankshaft hanger? What the flux a crankshaft hanger?

Well Lee I built a Crankshaft Hanger, It is either a couple heavy duty Angle Iron facing each other so you can hang the rear flange on or you can spin a crank Dampner bolt  thru a piece of steel and hang the crank from it...been doing this for like 30+ years keeps people from damaging the cranks....Lee I se a 2" square tubing with 1 " holes drilled in it to put the bolts thru cuz it will fit any dampner bolt.....