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Old 04-21-2003, 07:28 AM
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Post crank storage?

I'm storing a 454 Chevy completely disassembled engine that will eventually go into my 69 Chevelle. I was wondering if there are any rules for long term storage of a crank or block? I knew a guy who would suspend the cranks with wire from the rafters in his basement to keep them from warping. My question is, should the crank be stored on end or horizontally like it is in the engine? Also, any tips on block storage would be appreciated. The block and crank are in great shape, although they will go the machine shop before I put it back togher.

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Old 04-21-2003, 09:05 AM
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Store cranks on end. Although it is beyound my comprehension that a crank can go out of shape from lying on it's side, that is the contetion of some so be safe and stand it up.
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Old 04-21-2003, 09:40 AM
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I can't say I've ever checked an engine crank, but I have personally checked rotors for large turbines and compressors that were stored horizontally and seen this kind of warpage. We pay a place in Houston to hang all of our spare rotors because of this.

You would think that something this stout would not warp, but then again you are only talking about a couple of thousandths of an inch.
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Old 04-21-2003, 10:27 AM
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Old wives tale, regular engine crank do not need to be stored on end. They are much to stiff and short to worry about this kind of thing. Any sag apparent in storage is temporary and does not hurt the crank.

Now 100 ton turbine and rotor shafting, thats another thing altogether.
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Old 04-21-2003, 11:00 AM
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4 Jaw, I think that tale came from the old straight 8's. Warping of a crank wasn't too uncommon with those motors.
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Old 04-21-2003, 11:21 AM
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So much for the great advice in hot rod magazines (again!).
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Old 04-21-2003, 11:52 AM
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Sorry about the doulbe post... I'm having a hard time getting used to all this lag time. I'll just have to be more patient, I reckon...

[ April 21, 2003: Message edited by: PrimeMover ]</p>
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Old 04-21-2003, 11:54 AM
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I'm no crankshaft Guru that's for sure, but it makes more sense to me to store cranks and engine blocks on end. They are less apt to get damaged that way. If the storage place varies more than 30-40 degrees, like in unheated garages, it's best to spray the rod and main journals with a light oil and wrap 'em in cardboard, not plastic - things like to sweat in various temperature when totally covered in plastic. As far as the idea of warpage goes, I'm not so sure. However, I DO like to stay on the safe side. I wouldn't leave a fully dressed engine hanging on a stand too long either.

I've seen 8 foot pieces of standard hot-rolled plate stock stored on sets of horses for a period of time. They develope a slight but noticable negative camber... I don't like the idea of a crankshaft falling victim to Mother Earth's slow but relentless pull. If I've got a spare crank laying around, it'll get stored on end regardless of what HRM publishes about the idea.

There are some things I still go with the old gut feeling on and this is one of them.
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Old 04-21-2003, 02:05 PM
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I always make sure my cranks are near the top of the pile of parts and trash on the floor so, a) I can find them and, b) the oil holes don't waller around and get plugged with the piles of grinding shavings that build up on my shop floor.
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Old 04-21-2003, 02:26 PM
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It may be an old wives tale, but the machinist I trained under in the sixties always required them to be on end, I still store then that way. He was old enough to have an old wife though.

I worked on big Jets when a Crew Chief in the A.F. and it would have to be huge turbine to have a 100 ton anything in it.

[ April 21, 2003: Message edited by: woodz428 ]</p>
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Old 04-21-2003, 04:25 PM
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I store my cranks in the engine block,with the block upside down when ever I can just to be on the safe side.But,I don't realy think it's heavy enough to nake a difference but,just try to tell my old man that!
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Old 04-21-2003, 05:39 PM
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100 tons...I dunno, maybe like a big ship turbine or a big power generation turbine?

Several years ago I wandered arounf the Elliot(sp?) compressor factory in Pennsylvania while they were doing a run test on a 5000 hp steam turbine driven gas compressor for us...they had some REALLY big tooling in there they used for the Navy, I think.

Anybody ever work in the engine room of a carrier or something?

I pulled up my calculator and ran some numbers... a steel shaft 100 feet long and 2 feet in diameter would be about 75 tons, but I have no idea what you would use it for, except to shove it up Saddam's *****.

I bet THAT shaft might sag!!
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Old 04-21-2003, 06:06 PM
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My Bud is a TRW trained master tool and die man and he swears by storing cranks on end as well as blocks. That works for me. For long term storage, I smear all the shiney surfaces with general purpose grease and wrap the crank and block in butcher paper that I dont mind hosing with oil. This is primarily to keep mice out of the motor where their nasty little piss will just destroy a cylinder or main journal and mud dobbers that like to crawl back into every port and chamber and do their thing.

Trees
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Old 04-21-2003, 06:30 PM
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I say storing a crank on it's end ranks right up there with concrete discharging a battery. It's bunk, but if you've got a nice crank rack, use it. If you stand your crank up on end, it stands more of a chance getting screwed up from knocking it over. I would saw out some wooden "V-Blocks" and store it that way. I had a 283 crank on it's side for 20 years and no warping whatsoever. That's my hundred bucks worth on the subject.
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Old 04-21-2003, 07:10 PM
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NAIRB is correct i've seen more cranks accidently knocked over and damaged than if they had been horizontal, we store on crank racks suspended vertically, but transport on wooden horizontal racks. Blocks are stored on end.
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