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Wd 45 over heating

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04-30-2002 10:58:28

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I flushed the rad. last year and put new coolant in.when she gets warm she starts leaking out of the over flow. It has done this since I changed it. The level looks good and even if it was to full it should have stopped overflowing by now.It also has stalled before. I hauled a load of logs( 4th gear full throttle) about 4 miles one way.I got there and let her idle for about 10 min. then I fueled her up and headed home. I was 1 mile from the house when she stalled. I let her set for a min. then she started but would not run if you reved to high. Is this the thremostat or a plugged block? Thanks

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Dan Dooley

05-01-2002 02:48:31

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 Re: wd 45 over heating in reply to shawn, 04-30-2002 10:58:28  
If all else is right then the block is full of rust and sludge and it is going to overheat. Don't make a dam if the rad is full of fluid, if the block is full of rust..... check to find the capacity of the cooling system and then see if that is how much is in the system .....if it is short, then clean out your block ..... through a freeze plug.

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04-30-2002 21:04:25

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 Re: wd 45 over heating in reply to shawn, 04-30-2002 10:58:28  
Good idea to flush the radiator- but perhaps it needs an external pressure wash- use a pressure washer on the outside to remove the accumulated dirt between the fins.

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04-30-2002 17:40:50

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 Re: wd 45 over heating in reply to shawn, 04-30-2002 10:58:28  
My WD-45 has the right amount of coolant when I stick my finger to the bottom of the tank and have about 1/4" of coolant on my finger..(Cold).

Anything more, and it will go over the over-flow tube.... You may be trying to get it too full...

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Duey (IA)

04-30-2002 12:48:16

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 Re: wd 45 over heating in reply to shawn, 04-30-2002 10:58:28  
When it stalled, what did the temp gauge read? If it was in the red or the needle clear to the right when it stalled, you are doing major damage to this engine. If the temp gauge reads normal and the engine stalled, then it is either the coil or condenser going bad or possibly the fuel sediment bowl inlet is partly pluged. You just need to see the coolant level, usually down 1 to 2 inches from the top when cold. Duey

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Bryan Smith

05-01-2002 05:58:33

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 Re: Re: wd 45 over heating in reply to Duey (IA), 04-30-2002 12:48:16  
First, let's say the obvious - be careful and wear safety glasses - don't want antifreeze in your eyes. Open only a cool radiator (yep, you know all this).

Open the radiator cap when the tractor is cold, start the tractor, and then see if there are any bubbles in the radiator coolant - if so you've got a head gasket leak.

As the engine warms up coolant should start moving - if you don't see movement then the thermostat is frozen shut. But, if the thermostat was shut the tractor would overheat in a few minutes.

Make sure your fan is turning (and the water pump is pumping) - I have had one overheat when a too-long bolt was used in the cowl to hold it on and stopped the fan from turning.

And by all means make sure your radiator fins are clean - you should be able to see through the radiator.

Also make sure your timing is right - incorrect timing can cause overheating too.

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