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Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum
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Draining Radiator problem

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Chris Van der V

11-02-2006 15:14:09




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I am just starting to do the obvious things on an 1958 Gas 550 purchased at auction. Problem: turning the butterfly screws counter-clockwide as per manual does nothing - maybe a drop every 30 seconds from front left one. Do those butterfly screws come right out? I thought they stayed in permanently. Or is my rad too gummed up with deposits to drain? Yes, there is water in it! ;-)
Any suggestions?
Will be moving on to check/change thermostat + check/change water pump, as engine appears to be overheating. I can see steamy gas coming out of the cylinder head breather tube (which is almost rotted away) after half an hour engine running. None of the gauges work right now. Next job!

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old

11-02-2006 15:32:04




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 Re: Draining Radiator problem in reply to Chris Van der Vyver, 11-02-2006 15:14:09  
I see that problem all the time. Dirt and dirt dubbers and just plain junk from the cooling system stop them up. I take a small wire or screw driver and stick it in to them to clean out the junk and most of the time they start flowing like they should. Now if doing that doesn't help you might type useing a little air preassure to clena the junk that maybe sitting on it on the inside of the rad.

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Chris Van der Vyver

11-04-2006 04:15:55




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 Re: Draining Radiator problem in reply to old, 11-02-2006 15:32:04  
Poked about with a wire as you suggested. Thanks.
Front rad drain worked just fine, but when clared-out the rear one on engine block merely drained a few drips, less than half a coffee cup. Does this tell me anything? I would have expected more water in the engine block, or is it normal that most of the water drains from the rad, that tap being lower down?
Thanks again. Chris



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old

11-04-2006 08:01:47




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 Re: Draining Radiator problem in reply to Chris Van der Vyver, 11-04-2006 04:15:55  
Well if you opened the drain in the radaitor first yes it would drian the most of the water there being lower. but you could also/still have a good bit of rust in the block drain area. What I do is remove the block drain all the way and flush to whole system out with water before doing the anti freeze. That way you know the system is pretty clean. Now if you really want it clean fill with vinagar and run the engine for about an hour. Let it cool and drain the vinagar then flush with water. The vinagar will clean out the rust/lime and other junk in the system

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Chris Van der Vyver

11-07-2006 13:53:21




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 Re: Draining Radiator problem in reply to old, 11-04-2006 08:01:47  
Thanks. I will go for the vinegar option, as I have no idea if it has been well looked-after recently. I can tell it was once!

OK, when you say remove the block drain, do you mean those butterfly screws plugs will come out completely? If so, how? Just keep cranking them anti-clockwise?
Many thanks again.



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old

11-07-2006 14:20:49




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 Re: Draining Radiator problem in reply to Chris Van der Vyver, 11-07-2006 13:53:21  
A lot depends on what type block drain it has. Some do come out and others don't with out removeing the base part of it. I take them out because I have an adaptor that screws in to where the darin is and then hooks to a garden hose. That way I can back flush the system



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chris Van der Vyver

11-09-2006 16:45:33




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 Re: Draining Radiator problem in reply to old, 11-07-2006 14:20:49  
[Apologies. I posted this in the wrong thread earlier] A quick update. I refilled the rad to flush it a bit more before the proposed vinegar treatment. Opening the engine tap only, and starting the engine lead to LOTS of water draining nicely from the crankcase. So, I guess my water pump is OK. I will put off the rebuild for another Winter. Or do you think I should open it up and check it, while I have the front and rad off? If so, what am I looking for?
Checked the thermostat. It opens OK but does not close completely. I will replace it next week. Noticed more rust than
lime in the housing. Will vinegar cut that too?

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old

11-09-2006 17:42:23




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 Re: Draining Radiator problem in reply to chris Van der Vyver, 11-09-2006 16:45:33  
Well since vinagar is a mild acid yes it cuts/brakes up rust. But with rust you also may have to do the vinager thing twice if the rust is real bad. I have an Allis C that I had to do it twice before it would stop overheating on me but now its working as it should. As far as the water pump as long as its not leaking and the coolant flows like it should when the engine is running I would leave it alone

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