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Rusty 440 forged crankshaft - too rusty to use? #1411639 03/30/13 08:16 PM 03/30/13 08:16 PM
Joined: May 2004 Posts: 394 D dusterguy OP enthusiast
dusterguy OP enthusiast D Joined: May 2004 Posts: 394	I have a crankshaft that has sat in an unheated garage for the last 15 years. I am wondering if it will clean up with machine work or is it toast. Will it tear up the rear main seal? Please look at the picture and tell me if I have a new doorstop. 7647511-image.jpg (211 downloads)

Re: Rusty 440 forged crankshaft - too rusty to use? [Re: dusterguy] #1411640 03/30/13 08:40 PM 03/30/13 08:40 PM
Joined: Mar 2003 Posts: 18,678 Fresno, CA Jim_Lusk I Live Here
Jim_Lusk I Live Here Joined: Mar 2003 Posts: 18,678 Fresno, CA	Most any crank that is straight and not cracked can be repaired, check with a machine shop. It might be best to acid dip it take care of any rust in the oil passages.

Re: Rusty 440 forged crankshaft - too rusty to use? [Re: dusterguy] #1411641 03/31/13 12:40 AM 03/31/13 12:40 AM
Joined: Aug 2003 Posts: 43,223 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,223 Bend,OR USA	I would have it thoroughly cleaned, hot tank, glass bead blasted or media(plastic beads) blasted and go from there, I would think of using that one for a offset ground 3.91 stroke in a low deck Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: Rusty 440 forged crankshaft - too rusty to use? [Re: Cab_Burge] #1411642 03/31/13 04:54 AM 03/31/13 04:54 AM
Joined: Jan 2005 Posts: 4,862 the frozen wastes... Pale_Roader Swears too much
Pale_Roader Swears too much Joined: Jan 2005 Posts: 4,862 the frozen wastes...	Just make sure to watch how all these extra costs are going to add up. Used GOOD 440 steel cranks are easy to find, and you shouldn't be out more than $150-200 for one that just needs polishing. Start spending $3-400 on the old one and you could be close to getting a stroker crank, or at least a new stock stroke crank.

Re: Rusty 440 forged crankshaft - too rusty to use? [Re: Pale_Roader] #1411643 03/31/13 11:04 AM 03/31/13 11:04 AM
Joined: Jun 2009 Posts: 171 Indy M moparman89 member
moparman89 member M Joined: Jun 2009 Posts: 171 Indy	Pass on that. School of Automotive Machinists Racing

Re: Rusty 440 forged crankshaft - too rusty to use? [Re: dusterguy] #1411644 03/31/13 11:48 AM 03/31/13 11:48 AM
Joined: Jan 2003 Posts: 15,976 Chilliwack B.C. Canada R RUNCHARGER I Live Here
RUNCHARGER I Live Here R Joined: Jan 2003 Posts: 15,976 Chilliwack B.C. Canada	What Pale Roader said. It's nice to save the old stuff but when you can buy new 4.15 stroke cranks for $400 like I did a few years ago it doesn't make sense to save this one for a 440 build. I would consider nipping it down for a B stroker build though as CAB said. I'm sure if you had it to do over again you would have spread a big of grease on those journals. Sheldon

Re: Rusty 440 forged crankshaft - too rusty to use? [Re: RUNCHARGER] #1411645 03/31/13 12:48 PM 03/31/13 12:48 PM
Joined: May 2004 Posts: 394 D dusterguy OP enthusiast
dusterguy OP enthusiast D Joined: May 2004 Posts: 394	I got it in a parts deal this way. I just didn't want to throw it away because I virtually have nothing invested in it. I will take it to my machine shop and see what it looks like after a dip and blast. Wish me luck!

Re: Rusty 440 forged crankshaft - too rusty to use? [Re: dusterguy] #1411646 03/31/13 02:36 PM 03/31/13 02:36 PM
Joined: Dec 2007 Posts: 266 iowa R rook440 enthusiast
rook440 enthusiast R Joined: Dec 2007 Posts: 266 iowa	there is a simple way to clean the rust off at home...check out electrolosis online...I discovered this truely unreal cheap process when i was working on my mill..all u need is a 10 dollar tote a battery charger some rerod and a box of borax laundry booster..ive used on crankshafts anyone would have thrown away and they came perfectly clean...youtube might have a video on this but it is definately the wat to go for rust removal from anything..

Re: Rusty 440 forged crankshaft - too rusty to use? [Re: rook440] #1411647 03/31/13 09:49 PM 03/31/13 09:49 PM
Joined: Jan 2006 Posts: 234 SW FL D dodgedartgt enthusiast
dodgedartgt enthusiast D Joined: Jan 2006 Posts: 234 SW FL	Rook440 Can you post any before / after pictures? I'm aware of the electrolysis process, and would like to see more/ Thnx, Mike in FL

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