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    chasberry3's Avatar
    chasberry3 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Feb 11, 2012, 10:43 AM
    Product to stop leak in a cracked block?
    I have a small crack on my block and it looks like it is only leaking small amounts of oil out when running
    meltrol's Avatar
    meltrol Posts: 74, Reputation: 4
    Junior Member
    		  
    #2

    Feb 12, 2012, 06:00 AM
    Years ago I had an engine that threw a rod and cracked the crankcase wall. After repairing the mechanical damage I repaired the crack using JB Weld and drove the car for several years without a problem. When using the JB Weld for this purpose I'd suggest the crack area has to be absolutely, positively, perfectly clean, void of any oil residue. I cleaned the crack area with an old toothbrush and either a spray can of carburetor cleaner or brake cleaner... I forget, but It was some sort of solvent/cleaner. Then I mixed up the JB Weld and forced it into the crack with my finger. I also put a built-up layer over the crack area, extending about an inch all around the crack. Good luck!
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