Sediment/junk in water jacket
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Cross-Country
Joined: Mar 2006
Posts: 54
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Sediment/junk in water jacket
Doing a rebuild on a f-250 400. Knocked out the freeze plugs today and could not beleive what was in there. I wish I had a camera. The best way I can describe it is mud/sand/rust clay like sediment. I am suprised there was any coolant circulation at all.
So.... is this just the result of poor maintenance? I've had the truck for 2 years. Previous owner has had it since '81. How can I prevent this from happening again. You could use this stuff as brick mortar.
If you stick your finger in the freeze plug hole these is at least an inch of this stuff. One side seems to be worse than the other.
By the way, before I tore it apart it was not running hot.
This should prob be in the 400 forum. Don't know how to move it.
So.... is this just the result of poor maintenance? I've had the truck for 2 years. Previous owner has had it since '81. How can I prevent this from happening again. You could use this stuff as brick mortar.
If you stick your finger in the freeze plug hole these is at least an inch of this stuff. One side seems to be worse than the other.
By the way, before I tore it apart it was not running hot.
This should prob be in the 400 forum. Don't know how to move it.
Last edited by tuckerjw; Feb 23, 2008 at 07:03 PM. Reason: wrong forum
Junior User
Joined: Jan 2006
Posts: 51
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i had same prob with a 351 m i took it to the car wash and steam cleaned it the best i could never had any overheating problems after that. I just kept good coolant in it and the brown mud went away after i flushed it 3 times/1500 miles
Laughing Gas
Joined: Feb 2007
Posts: 821
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From: hohenwald, tn
flush the coolant out every couple of years. i saw one once that covered the water jackets 1/2 way up. i pulled all the freeze plugs and was amazed. i didn't know what to think. try to drain the coolant, stick a garden hose in the radiator and open the drain and run it till the water comes out clear.
Postmaster
Joined: Aug 2000
Posts: 3,312
Likes: 1
From: Eldorado Ca. USA
Poor maintenance (never changing the coolant, and improper ratio) will do that on any engine. Nowadays I run Dexcool in everything I own, and also run a coolant filter to trap any rust scale and sediment. My stuff stays nice and purdy.
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