Re: Block repair with waterglass?

Posted by Moby on September 25, 2003 at 18:43:37 from (63.92.109.7):

In Reply to: Block repair with waterglass? posted by Tom in Texas on September 22, 2003 at 17:49:28:

I would recommend having it welded. I have welded on 3 engine blocks and had success on 2 of them. All of them were crack in the water jacket on the outside of the block. It seems to me that the older stuff takes the weld better without busting out. The one that failed was on a newer truck. There is a really good stick rod made by Palco (can't remeber the number) that works really well. It's got a lot of nickel in it. I used a 3/32 at about 65 amps dc with the block preheated to about 400f. I drilled the crack at each end with an 1/8 bit and ground and wire wheeled it to get it clean. It has to be really clean, then sprayed it down with a contact cleaner before I heated it. I heated the first block over a woood stove and the last one I did at work in a big bearing heater oven. Get a good strike and run the rod fast and keep in on the heat then cood it really slow.

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