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I noticed when I went to use my Tractor King (Jinma) tractor, that I had antifreeze running down the side of engine. I had performed the head tightening as required at about the 100 hour time, it has now about 160 hours on it. I had the radiator repaired a couple of years ago (minor repair), and asked for a low pressure cap. He installed a different cap, but there are no markings has to pressure ratings. I’m not a mechanic, but feel confident that I did what was required to help protect my tractor. I really don’t think even a stuck cap would cause a head gasket to blow, but curious if there is something I missed. The tractor is a 454, with a c490bt 4 cylinder engine.
So I don’t think its getting antifreeze in the cylinders. No white smoke.(radiator cap loose), I’m thinking of putting stop leak in it, any advice out there? -
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I would get a radiator cap of a known pressure. The original was probably something like 6 or 7 pounds. Anything more than that can cause problems.
If you are not running a coolant recovery tank, then the proper coolant level is just above the radiator core tubes when cold. These leaves room in the header for the coolant to expand when it warms up.
You definitely need to find the source of the leak so you can determine the proper fix.
My suggestion is to try and find the source of the leak. Then clean and dry the engine in the suspect area. Check and correct the coolant level if necessary. Start the engine and let it warm up at a fast idle. Leave the radiator cap off and watch the coolant while it warms up. You should be able to observe the flow rate increase the thermostat opens. Watch closely for bubbles. Also watch for coolant to appear at the suspected leak point.
Please let us know what you find and post a picture if possible.
Good Luck.
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Well I find it hard to admit what happened. But The liquid running down the side of the engine was green in color, so I assumed it was antifreeze. It was really evident where the head meets the block. My son and I were looking at it and he noticed some green around the fuel injectors on the top of the head, I said it couldn’t be as there is no place for the antifreeze to come from. He being the wiser was sure the leak was coming from something else. The 454 has several zig zag rubber connectors to bleed of the excess fuel back to the engine, one was dripping some fuel, which got his attention. So now I need to know when was diesel fuel produced with a green dye in it? I heard that at one time they added red dye, so they could tell if you were running farm diesel on the road, as it was tax free. I was ready to pull the head off, so I am very happy the he figured out what the problem was. Thanks for the suggestions.
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I have never heard of green fuel , I buy red fuel for the farm , yes it is tax free fuel and there is a penalty if you get caught with it in a road vehicle. Todays diesel is kinda clear with a green tint it does not look like it did 50 years ago. If you have the place where you can buy red fuel try it and see if the color in the area changes if you can not get the leak to seal.
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