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How to clean out block water jacket?

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Rick

06-15-2003 04:22:09




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With the head off, all head studs removed, and the block drain petcock removed, I began flushing water down into the waterjacket while freeing up the crud with a long thin screwdriver. All kinds of crap coming out the drain. I figure I will do this to get out what i can. Is there anything (chemical) that i should pore down in the jacket to continue the cleaning process. I was thinking of muratic acid or something. Anyone have any ideas on this?

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Fast Ed Ohio

06-15-2003 23:18:49




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 Re: how to clean out block water jacket? in reply to Rick, 06-15-2003 04:22:09  
Im thinking an old coat hanger might help, dont know, never tryed it .



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8N ford

06-15-2003 21:56:54




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 Re: how to clean out block water jacket? in reply to Rick, 06-15-2003 04:22:09  
Try using CLR and it works well on rust in the gas tank too. This is what I used on both and it worked very well... 8N



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how i did it- Rick

06-15-2003 15:29:20




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 Re: how to clean out block water jacket? in reply to Rick, 06-15-2003 04:22:09  
thanks for all your input. At Home Depot I bought a coulple of adaptors so I could convert my garden hose to a valve with a 3/8 barb. I removed the waterpump, petcock and all head studs. With a long but narrow screwdriver and poking the hose barb into each of the holes, I was able to get out lots of rust the size of a pencil eraser and a lot of "sludge/mud". I just kept working the screwdriver in all directions on each hole. then I would do the same with the water. Everything just washed out the hole with the petcock removed. With the valve, I was able to keep the water out of the piston cylinders/valves etc. After 50 or so gallons, everything looks great. (quite some pressure when u reduce the hose to 3/8)

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DM

06-15-2003 15:06:23




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 Re: how to clean out block water jacket? in reply to Rick, 06-15-2003 04:22:09  
After removing the petcock,and allowing the block to dry, I put the shop vac up to the opening and flicked the particles to the hole with a long screwdiver. Got most of it.
Good Luck,
Dave



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Chuck A

06-15-2003 07:04:44




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 Re: how to clean out block water jacket? in reply to Rick, 06-15-2003 04:22:09  
Rick, I would use a copper line say 1/4" dia and 14" long on the end of a water hose. I have done this and it seems to work fine. You can direct the water to the bottom of the block where the crud is. Turn the block upside down if you can or take the freeze plugs out and give the crud more room to "get out".



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Rob

06-15-2003 05:04:35




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 Re: how to clean out block water jacket? in reply to Rick, 06-15-2003 04:22:09  
A parts washer solvent, kerosene, and maybe diesel and a bottle brush might be the safer and cheaper way to go. The solvent might be safer but isn't so cheap at like $7/gal. I just don't think you should be spraying oven cleaner on a tractor, especially not inside the engine but maybe that's just me. It might be different if you could completely wash and rinse the thing after using such chemicals but you can't in your situation. It's just not friendly to certain metals (bearings and stuff) and probable gaskets and wires and it's caustic and corrosive and your tractor doesn't need exposed to that kind of chemical.
They make cooling system flush chemicals available at your auto parts house.

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Rob

06-15-2003 07:32:37




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 Re: Re: Re: how to clean out block water jacket? in reply to Same as hot tanks, 06-15-2003 07:21:28  
Yeah and if you have the block removed to get in a hot tank you will be able to wash and rinse it after. That's not really something easily done when all you did was pull the head.



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'52 8N (MD)

06-15-2003 04:49:52




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 Re: how to clean out block water jacket? in reply to Rick, 06-15-2003 04:22:09  
This might be a good place to use the Easy-Off oven cleaner or maybe just Gunk Engine-Brite since it rinses off with water. A small bottle brush, pipe cleaners and a small radiator brush might help too.



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