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Re: Prep the motor before it goes to the machine shop?
[Re: magnum440d100]
#1196217
03/13/12 08:44 AM
03/13/12 08:44 AM
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Joined: Oct 2003
Posts: 21,345 Marysville, O-H-I-O
70Cuda383
Too Many Posts
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Too Many Posts
Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
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I thought the baking process would remove everything but rust. Try giving the machine shop a call and ask them what the oven bake DOES remove, or ask if they have a cold tank.
my machine shop has both hot tank and cold tank. I don't know if the cleaning solvent is the same in both, and one is just heated up or if they use different solutions, but the cold tank was about half the cost of a hot tank dip, but it came out looking like a fresh cast block....so I don't really know WHAT the need for the more expensive "hot tank" would be!
**Photobucket sucks**
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Re: Prep the motor before it goes to the machine shop?
[Re: 70Cuda383]
#1196218
03/13/12 08:53 AM
03/13/12 08:53 AM
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Joined: Feb 2012
Posts: 637 SoMd, USA
135sohc
mopar
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mopar
Joined: Feb 2012
Posts: 637
SoMd, USA
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The traditional 'hot tank' has been all but put out of business by the EPA. Still have the 'dishwasher' but its not as good as the nasty stuff. Gets a majority of the funk off but not rust or paint. Thermal cleaning and blasting is the way to go. It gets everything so clean and nice, its like a fresh casting. http://www.youtube.com/watch?v=gb2vDg2Iu...mp;feature=plcp
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Re: Prep the motor before it goes to the machine shop?
[Re: 05dakota]
#1196220
03/13/12 11:28 AM
03/13/12 11:28 AM
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Joined: Jan 2003
Posts: 75,050 U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,050
U.S.S.A.
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Quote:
doesnt the blasting then require redoing the bores?
Shot blasting changes all the machined surfaces , you would do this before all machining operations . You could make covers for certian areas if you don't want the machined surfaces touched , I made alum plates with holes when I had a block done that protected the deck surface , I didn't worry about the mains and the bores since those were going to be remachined . It also stress relieves the casting .
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