Coolant filter?

[Sonnythebull]

Having a hard time with a newly rebuilt  engine. The block was supposedly hot tanked but we have now gone thru 2 rads that get plugged with dirt and rust. After the first one we flushed the water passages out 6 times until it ran clear. Now another rad is plugged. Anyone try a coolant filter?

[cudabob496]

seems there would be coolant flush chemicals you could use.
Also open block drain plugs on side of engine block to drain.
If pull block drain plugs, and no water, stick a screwdriver up there to loosen slug.

[Chryco Psycho]

The block was definatly not clean properly , where would you put a filter ? you woul dhave to be diligent about cleaning it or it could block flow & overheat , I would suggest before entering the rad in the top hose .

[HP_Cuda]

Your motor may have shown clean but you might have forgotten that the heater core could be jammed up and putting dirt and sludge back into your system as well.

[Sonnythebull]

We wre flushing out the engine again, puting a new rad again and installing a clear filter from www.ganofilters.com
Hope this fixes it but at least I can see if it's getting dirty and not ruin another rad

[spamtank]

I remember from a while back my dad or my uncle had a radiator flushing tool that would hook up to an air compressor.  It had a conical fitting to fit any radiator hose.  I think you hooked it up to the lower hose, fill the water jacket up, and then hit it with repeated blasts of compressed air.  It worked pretty well.  The air agitated the water, and flushed the water out of the top hose.  Maybe we ran it the other was as well by elevating the lower hose so you could fill the water jacket up. 

I don't know if that's the same kind of flushing you are doing, but something like that may help loosen up the gudge.  Probably have to find an old timer who still has a tool like that. 

I think I'll borrow that tool next time I'm back home so I can flush my block out later this year.

[nqkjw]

An Australian product called a "Tefba" filter is specifically made for your problem and they work great.
They fit into your top radiator hose.
Easy to clean - abt one to two minutes does it.
Google it and you should find it.
Here's a pic of one on my 72 Dart.

[Sonnythebull]

Thanks I'm going to try the gano one because its clear