Re: Save This Block
[Re: mopar4ya]
#1871948
07/16/15 10:34 PM
07/16/15 10:34 PM
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Joined: Jan 2003
Posts: 42,714 Spokane Washington
ScottSmith_Harms
Mr Wizzard
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Mr Wizzard
Joined: Jan 2003
Posts: 42,714
Spokane Washington
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Several methods are possible, here are a couple: First....Get it hot tanked to remove all of the grease you can get off. Use www.safestrustremover.com I'd use this instead of Evaporust, similar product but cheaper and better for larger items. Use the molasses trick, fill a large container like a horse trough with a 50lb bag of dry molasses and water (bags are sold at feed supplies for horses to eat). Put a tight fitting cover on it, let it ferment for a couple weeks in the sun, soak the block for a week or two (you'll be amazed at the results!)
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Re: Save This Block
[Re: mopar4ya]
#1872027
07/16/15 11:55 PM
07/16/15 11:55 PM
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Joined: Jun 2012
Posts: 1,899 MYRTLE BEACH SOUTH CAROLINA
ek3
top fuel
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top fuel
Joined: Jun 2012
Posts: 1,899
MYRTLE BEACH SOUTH CAROLINA
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I have used brake fluid as a rust buster for ever.it will break the bond that rust holds on parts.. give it some time to work . that and some heat will go a long way.
Last edited by ek3; 07/16/15 11:56 PM.
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Re: Save This Block
[Re: mopar4ya]
#1872139
07/17/15 02:16 AM
07/17/15 02:16 AM
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Joined: Jan 2005
Posts: 12,419 Kalispell Mt.
HotRodDave
I Live Here
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I Live Here
Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
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I was determined to save a 340 that looked like that, just unbolted everything I could un bolt like caps, drove out the rod bolts till I could eventually get the crank out, drilled holes in the perimeter of the pistons till I could drive the center out with the rod, then finally cut a slot in the shell of the pistons with an aluminum carbide then they loosened up enough to kind of peel the out with a chisel on the remaining ridge of aluminum, drove the cam out from the back with a sledge hammer and big brass drift and it came out with the bearings on it instead of the block. There were only a few lifters in it, pried them out with a crow bar and drove em back in a few times till I could get em clear of the cam then drove them through with the cam out.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: Save This Block
[Re: HotRodDave]
#1872253
07/17/15 11:49 AM
07/17/15 11:49 AM
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Joined: May 2012
Posts: 1,842 South Bend
John Brown
top fuel
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top fuel
Joined: May 2012
Posts: 1,842
South Bend
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If the pistons are a problem, and it looks like they will be, LYE eats aluminum. It will take a while, but it will get the job done..... eventually. Lye doesn't affect steel or cast iron so you can let it soak as long as necessary, but everything that is aluminum based will be eaten on.
July 19th should be "Drive Like Rockford Day". R.I.P. Jimmie.
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Re: Save This Block
[Re: HotRodDave]
#1872254
07/17/15 11:49 AM
07/17/15 11:49 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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That's going to take awhile! hope the bearings have prevented the crank/cam from rusting together!
I would get a LOT of penetrating oil like WD40/PB Blaster and start soaking everything. going to need to give it a LOT of time to soak in. Then brute force/muscle to pound out the pistons.
I salvaged a block that was flooded. Most of it came apart easy enough but the pistons were rusted into the bores. finally got it all out but had to break up a few pistons to get them out.
Hope that's a high dollar block or numbers original block there...Otherwise you'll be looking at massive overbore and/or sleeves. Mine ended up bored at .060 to clean up and still had to have 2 holes sleeved eventually. The original shop that did the work got fired after screwing a few things up, the first of which was their decision to bore it .060 instead of telling me how bad it was and letting me use a different block.
(then they told me they measured wall thickness and it was good to go, and it cracked a cylinder wall after 100 miles. by then I had moved to a new state, and it was cheaper to sleeve the cracked hole, and one other thin hole, than it was to prep an all new block)
**Photobucket sucks**
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Re: Save This Block
[Re: mopar4ya]
#1872580
07/17/15 10:24 PM
07/17/15 10:24 PM
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Joined: Jan 2004
Posts: 8,313 fredericksburg,va
cudaman1969
master
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master
Joined: Jan 2004
Posts: 8,313
fredericksburg,va
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I agree about the crank journals, mine was still an old greasy block, needed the crank and found rust had eaten it, had to turn it 10-10. 55 gallon drum with vinager or the molasses will work on the rust, just takes time. I'm going to look into the product Scott posted.
Just checked on safe rust, same price as evoporrust at HF, 25 dollars a gallon plus shipping.
Last edited by cudaman1969; 07/17/15 10:31 PM.
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Re: Save This Block
[Re: dogdays]
#1872980
07/18/15 04:52 PM
07/18/15 04:52 PM
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Joined: Mar 2005
Posts: 2,644 North Carolina
sasquatch
master
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master
Joined: Mar 2005
Posts: 2,644
North Carolina
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Get it apart and take it to a shop that has an Ampro and it will look like new money. I had a Petty hemi that had been buried in the back of his shop that looked that bad. Worked great. Todd Try soaking in vinegar for a day or two. It will turn black and you will then need to rinse it well>
Last edited by sasquatch; 07/18/15 04:54 PM.
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